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GPIB-410 User Manual - National Instruments

1. e The expression n specifies an optional repetition factor n which may precede any command The value of n must be an integer constant in the range 1 to 65535 If n is omitted the default repetition factor is 1 e The expression command is one of the five command keywords described under the JBPGL Command Description section later in this chapter e The expression arguments specifies a variable list of arguments that are determined by the selected command IBPGL Command Descriptions 1 SET line_mask This command is used to selectively change the state of any combination of GPIB signal lines It causes exactly one new pattern two bytes to be placed into the pattern buffer In the above command line the expression line_mask has the following syntax operator line_mnemonic e The expression operator can be the symbol or The operator causes each of the GPIB signal lines specified in the expression 1ine_mnemonic tobe set to 1 on The operator causes each of the GPIB signal lines specified in the expression line_mnemonic to be set to 0 off GPIB 410 User Manual E 2 National Instruments Corp Appendix E Using the Pattern Generator e The expression 1ine_mnemonic can be any of the following terms D1 D5 EOI IFC D2 D6 ATN NRFD D3 D7 SRQ NDAC D4 D8 REN DAV DATA specifies all 8 data lines CONTROL specifies all 8 control lines ALL specifies all 16 signal lines Any number of
2. Two command transfers 12 data transfers and two ATN transitions have been captured Notice that the comment field identifies the ATN transitions and identifies the Command data pattern as the Untalk UNT command Refer to Chapter 4 for a description of the fields and functions of the Capture Display screen Use the up arrow key and down arrow key to move the cursors through the data display lt F9 gt can be used to change the currently active cursor Notice that the AC field on the help error bar changes as the cursors are moved to reflect the current number of samples from cursor to cursor 6 Notice that some of the switches in the monitor are still asserted Press lt Alt M gt to enter Monitor Input mode once again then press lt SpaceBar gt to reset all of the switches At this point you may like to GPIB 410 User Manual A 6 National Instruments Corp Appendix A Tutorial try completing steps 3 through 5 again while you are still on the Capture Display screen This time instead of pressing lt Alt C gt to initiate the capture press lt Alt E gt to enable Capture Echo mode so that you can see the captured samples as they are acquired 7 Press lt F2 gt to return to the Main Menu Example 2 Triggering and Pattern Generating In this example triggering is used with the pattern generator to capture data from the GPIB based on trigger criteria The same capture settings are used as before but you must go to the
3. Use this field to specify whether to reset all switches in the Monitor window to OFF at the end of a pattern generation sequence There are two options e yes clear all switches e no leave switches as last set Selecting yes causes the GPIB 410 to stop asserting all lines on the GPIB after the Pattern Generator successfully completes its output If a DOS shell is active when the Pattern Generator completes asserted lines are not cleared until you exit the shell and return to the GPIB410 program Selecting no causes the lines asserted by the last pattern placed on the bus to remain asserted until you explicitly clear them in the Monitor window or you start the Pattern Generator again Send EOI with Last Byte Use this field to specify whether to assert the EOI line with the last byte output at the end of a pattern generation sequence This field is valid for INPUT WINDOW operation only There are two options e yes send EOI GPIB 410 User Manual 4 22 National Instruments Corp Chapter 4 Software Reference e no do not send EOD Selecting yes causes the GPIB 410 to send EOI with the last byte in the pattern buffer during execution of the final pass through the buffer Selecting no disables the sending of EOI Pattern Buffer Source Use this field to specify the source of the 16 bit pattern sequence to be output during execution of the Pattern Generator The pattern buffer containing the sequence is created and loaded f
4. e Variable Speed Handshaker fields can vary the speed of the built in source and acceptor handshakers of the GPIB 410 hardware e Capture Buffer Search function can search for a specific pattern or class of patterns e Auto Accept a Byte function can perform one cycle of the acceptor handshake with a single keystroke e Improved FMT410 utility can tailor capture file output to specific needs and situations Some of the new functions included in the Revision C release are as follows e Background Operation you can exit to DOS temporarily without terminating the GPIB410 program During DOS operation an optional GPIB 410 icon can be displayed on the screen showing the operational modes in effect and the current state of the GPIB signal lines All enabled modes remain active while the main program is suspended e Capture Echo mode can display captured data on the screen as it is being captured e Data Recapture function can recover the results of the last successful capture operation after the Capture Display screen has been cleared e Capture File Load function can load capture files stored on disk back into the capture buffer for display and analysis e Improved Capture Display Screen supports flexible cursor positioning while scrolling through the data expanded device addressing information in the mnemonics display column and buffer offsets formatted in either decimal or hexadecimal GPIB 410 User
5. Problem The system crashes when any of the operational modes on the Main Menu screen are enabled A restart is necessary to proceed Possible Cause e The values selected for the Input DMA channel Interrupt jumper setting or Base I O address on the Configuration Settings screen do not match the actual settings on the interface board or the values selected are in use by another device Check the choices made and try again Problem The title status bar is blank and or the entire screen is faint or coarse making it difficult to read Possible Cause e Your computer contains a color graphics controller card connected to a monochrome display Go to the Configuration Settings screen lt F7 gt and change the computer display mode field from Color to one of the Monochrome options by using lt gt or lt gt Press lt Enter gt after you have made this change Alternatively you can specify monochrome operation at program start up by specifying m in the DOS command line as follows gpib410 m lt Enter gt Problem The DOS Shell functions lt Alt D gt and lt Alt I gt are not able to find load or run the file COMMAND COM Possible Cause e The correct pathname of COMMAND COM is not contained in the DOS environment variable COMSPEC You must set this variable accordingly so that the GPIB 410 software can find the file on disk e COMMAND COM contained on the currently active boot disk has an incorrect version nu
6. describes the differences between major software revisions e Appendix I Customer Communication contains forms for you to complete to facilitate communication with National Instruments concerning our products e The Index contains an alphabetical list of key terms and topics used in this manual including the page where each one can be found GPIB 410 User Manual xij National Instruments Corp About This Manual Conventions Used in This Manual The following conventions are used to distinguish elements of text throughout this manual italic Italic text denotes emphasis a cross reference or an introduction to a key concept monospace Lowercase text in this font denotes text or characters that are to be literally input from the keyboard sections of code programming examples and syntax examples This font is also used for the proper names of disk drives paths directories programs subprograms subroutines device names functions variables filenames and extensions and for statements and comments taken from program code bold monospace Bold lowercase text in this font denotes the messages and responses that the computer automatically prints to the screen italic monospace Italic lowercase text in this font denotes that you must supply the appropriate words or values in the place of these items lt gt Angle brackets enclose the name of a key on the keyboard for example lt PgDn gt A hyphen between tw
7. displayed in the upper right hand corner of the screen showing the operational modes in effect and the current state of the GPIB signal lines The layout of the icon signal lines is the same as that shown in the monitor window All enabled operational modes remain active while the main program is suspended To exit the shell and return control to the GPIB410 program type EXIT at the DOS prompt See Figure 3 6 for an example of this mode of operation GPIB 410 User Manual 3 10 National Instruments Corp Chapter 3 Overview Figure 3 6 DOS Shell with GPIB 410 Icon General Input Conventions The GPIB 410 software has three types of input fields They are Direct Input Option Ring and Key Select Each of these types of fields is described in detail later in this chapter To modify or get help on a particular field it must be selected The software is always operating in one of two input modes monitor or analyzer When Monitor Input mode is enabled only those fields in the monitor window can be selected When Monitor Input mode is not enabled the software is operating in Analyzer Input mode and the fields in the lower portion of the screen can be selected Type lt Alt M gt to move into and out of Monitor Input mode Regardless of the input mode selected other operational modes can also temporarily inhibit selection of certain input fields National Instruments Corp 3 1 GPIB 410 User Manual Overview Chapter 3 To selec
8. installation specifications help error bar Analyzer Window 3 5 Help File Name field 4 32 Help Utility Screen overview 3 7 selectin g from Analyzer Window 3 5 I IBPGL See Interface Bus Pattern Generating Language IBPGL IDY response event 4 6 IEEE 488 mnemonics 4 17 IFC status event 4 6 Immediate write function G 1 H 1 INCLUDE command IBPGL E 4 to E 5 input window for pattern generation E 7 to E 8 installation See also configuration hardware diagnostics 2 5 hardware installation 2 2 to 2 3 illustration of BNC I O panels and cables 2 4 software installation 2 4 to 2 5 unpacking the GPIB 410 1 3 interactive input window for pattern generation E 7 to E 8 Interface Bus Pattern Generating Language IBPGL execution control commands E 2 HANDSHAKE command E 3 to E 4 GPIB 410 User Manual Index 6 National Instruments Corp Index Interface Bus Pattern Generating Language IBPGL continued INCLUDE command E 4 to E 5 pattern creation commands E 1 to E 2 PAUSE command E 5 to E 6 SET command E 2 to E 3 tips and techniques E 6 interface messages multiline B 1 to B 3 INTERNAL CLOCK PULSE option 4 6 interrupt level configuration Interrupt Jumper Setting field 4 30 overview 2 1 Revision B 2 or higher C 8 Revision C C 16 to C 17 J jumpers and switches base I O address Revision B 2 or higher C 4 Revision C C 12 DMA channel Revision B 2 or higher C 6 to C 7 Revision C C 14 to C 15 in
9. screen for saving captured status information to a file on disk e The Auto write function e The Immediate Write function The Auto write function is used while capturing is enabled to save the contents of the GPIB 410 capture buffer automatically each time the buffer is full or when the capture operation is terminated The pathname of the file to receive this information is specified in the field at the bottom of the Capture Settings screen This function is useful when you want to capture and retain more status entries than will fit in the capture buffer at one time Before you initiate any capture activity that you wish to save you must enable this function by selecting yes in the Auto write each pass field on the screen The Immediate Write function which is activated by pressing lt Alt W gt saves the current contents of the capture buffer to the specified file on disk This function is used to save captured status information after the capture activity has already completed In addition by using the Buffer range for lt Alt W gt field you can elect to save the contents of the entire buffer or just a portion of it With either of the above techniques information is saved to the capture file in exactly the same manner If the specified file already exists it is overwritten when the write operation is initiated Otherwise it is created The saved block or table of status entries is preceded in the file by a binary header th
10. with the exception of disk I O but can have a negative impact on overall performance Selecting MAXIMUM instructs GPIB 410 User Manual 4 30 National Instruments Corp Chapter 4 Software Reference the software to update the indicators as often as possible but not at the expense of other more important activities MAXIMUM is usually satisfactory but can sometimes result in indicator freeze up during processor intensive activities For the DOS icon indicators MAXIMUM and 18 Hz are equivalent Acceptor Handshake Rate Use this field to specify the speed of the GPIB 410 acceptor handshake functions The value selected applies to both the lt Alt A gt ACP handshaker and the optional handshake used during the capture of data and command transfers There are 25 options 60 Hz 400 Hz 4 KHz 40 KHz 400 KHz 80 Hz 500 Hz 5 KHz 50 KHz 500 KHz 100 Hz 1 KHz 10 KHz 100 KHz 700 KHz 200 Hz 2 KHz 20 KHz 200 KHz 900 KHz 300 Hz 3 KHz 30 KHz 300 KHz MAXIMUM Selecting one of the numeric options programs the GPIB 410 hardware to regulate the acceptor handshake to an approximation of the requested speed Selecting MAXIMUM disables the hardware timers and allows the handshake to proceed at the fastest rate possible Note Because of other configuration variables such as host processor speed and DMA vs PIO capture operation the actual acceptor handshake rate observed may be less than requested Source Handshake Rate Use this field to specif
11. 0x5F NUL 0x00 In addition to the above escape sequences two others are provided for entering the ASCII characters and They are as follows lt Alt P gt Insert an ASCII into the Input Window lt Alt N gt Insert an ASCII into the Input Window These two escape sequences are necessary because lt gt and lt gt on the keyboard are used to select the options in the Pattern Buffer Source field which is the Input Window parent field Examples of Input Window strings INPUT HI NDOL a abedetghi jk mnopgqrs tuvuesgez yr yr bee bE EE Bey Ee Ee Pe Et Pt Pt Et Et Et INPUT HINDO b ed Dyed x4d3 edd x45 gA Ved B40 40 bey boy Ee Pe Et Ee Pe Et Pe EETL Et Et Et INPUT WINDOW c SUMT UML 4 14 TCT bey by Sy By Pe Se Pe Ee Py Se Pt Pe Et GPIB 410 User Manual E amp National Instruments Corp Appendix F GPIB410 PAT Source Listing This information not available in PDF version of this document National Instruments Corp F 1 GPIB 410 User Manual GPIB410 PAT Source Listing Appendix F This information not available in PDF version of this document GPIB 410 User Manual F 2 National Instruments Corp Appendix G Saving and Viewing Capture Information on Disk This appendix describes saving and viewing capture buffers on disk Also included is a description of the FMT410 utility The following two functions are available on the Capture Settings
12. 410 interface board e No input fields have been changed other than those on the Configuration Settings screen e The selected keyboard layout type is U S English When the hardware and software are installed step through the following examples Example 1 Capturing Data From the GPIB This example takes you through the basic procedures to set up and execute a data capture of GPIB states In addition you use the GPIB 410 monitor to manipulate the GPIB 1 If you are already running the GPIB410 program press lt F2 gt to go to the Main Menu screen Otherwise start up the GPIB410 program by entering the following command gpib410 lt Enter gt National Instruments Corp A 1 GPIB 410 User Manual Tutorial Appendix A The Main Menu screen appears as shown in Figure A 1 Figure A 1 Main Screen Notice that the GPIB 410 monitor LEDs are not lit indicating that there is no activity on the GPIB GPIB 410 User Manual A 2 National Instruments Corp Appendix A Tutorial 2 Press lt F3 gt to select the Capture Settings screen as shown in Figure A 2 Figure A 2 Capture Settings Screen Press lt Enter gt or the down arrow key until the Maximum capacity field is highlighted This field indicates the maximum number of capture samples that can be stored in PC memory at one time Enter the value 16 For the other fields on the Capture Settings screen the default values are used for this example Later you ca
13. C 9 Revision C C 13 to C 15 documentation abbreviations used in viii acronyms used in viii conventions used in vii related document ix DOS Shell Icon function lt Alt I gt 3 10 to 3 11 DOS Shell function lt Alt D gt 3 10 E equipment optional 1 3 examples See tutorial EXTERNAL CLOCK PULSE option 4 6 F File Setup Buffer Range for lt Alt W gt field 4 8 to 4 9 File Setup Capture File Name field 4 9 flags for formatting captured data G 4 FMT410 utility G 2 to G 6 function key line Analyzer Window 3 5 G general information display Analyzer Window 3 4 general input conventions 3 11 to 3 14 direct input fields 3 12 key select fields 3 13 option ring fields 3 13 overview 3 11 to 3 12 Generate mode lt Alt G gt 3 9 4 21 GPIB 410 illustration of 1 1 kit contents 1 2 optional equipment 1 3 overview l 1 to 1 2 specifications 1 4 National Instruments Corp Index 5 GPIB 410 User Manual Index GPIB 410 continued unpacking 1 3 GPIB software See Analyzer Window Monitor Window names of specific screens operational modes and function software GPIB410 PAT source listing F 1 to F 2 H HANDSHAKE command IBPGL E 3 to E 4 handshaking Acceptor Handshake Rate field 4 31 lt Alt A gt Acceptor Handshaker mode 3 10 lt Alt S gt Source Handshaker mode 3 10 Participate in Handshake field 4 7 Source Handshake Rate field 4 31 to 4 32 hardware See configuration GPIB 410
14. Corp Appendix B Multiline Interface Messages Multiline Interface Messages Hex Oct Dec ASCH Msg Hex Oct Dec ASCII Msg 40 100 64 MTAO 60 140 96 MSAO PPE 41 101 65 A MTA1 61 141 97 a MSA1 PPE 42 102 66 B MTA2 62 142 98 b MSA2 PPE 43 103 67 C MTA3 63 143 99 c MSA3 PPE 44 104 68 D MTA4 64 144 100 d MSA4 PPE 45 105 69 E MTA5 65 145 101 e MSA5 PPE 46 106 70 F MTA6 66 146 102 f MSA6 PPE 47 107 71 G MTA7 67 147 103 g MSA7 PPE 48 110 72 H MTA8 68 150 104 h MSA8 PPE 49 111 73 I MTA9 69 151 105 i MSA9 PPE 4A 112 74 J MTA10 6A 152 106 j MSA10 PPE 4B 113 75 K MTAI11 6B 153 107 k MSA11 PPE 4C 114 76 L MTA12 6C 154 108 1 MSA12 PPE 4D 115 77 M MTA13 6D 155 109 m MSA13 PPE 4E 116 78 N MTA14 6E 156 110 n MSA14 PPE 4F 117 79 O MTA15 6F 157 111 o MSA15 PPE 50 120 80 P MTAI16 70 160 112 p MSA16 PPD 51 121 81 Q MTAI17 71 161 113 q MSA17 PPD 52 122 82 R MTA18 72 162 114 r MSA18 PPD 53 123 83 S MTA19 73 163 115 s MSA19 PPD 54 124 84 T MTA20 74 164 116 t MSA20 PPD 55 125 85 U MTA21 75 165 117 u MSA21 PPD 56 126 86 V MTA22 76 166 118 v MSA22 PPD 57 127 87 W MTA23 77 167 119 w MSA23 PPD 58 130 88 X MTA24 78 170 120 x MSA24 PPD 59 131 89 Y MTA25 79 171 121 y MSA25 PPD 5A 132 90 Z MTA26 7A 172 122 z MSA26 PPD 5B 133 91 f MTA27 7B 173 123 MSA27 PPD 5C 134 92 MTA28 7C 174 124 MSA28 PPD 5D 135 93 MTA29 7D 175 125 MSA29 PPD 5E 136 94 MTA30 7E 176 126 MSA30 PPD 5F 137 95 _ UNT TF 177 127 DEL PPE Parallel Poll Enable SPE Serial Poll Ena
15. Each switch in U65 corresponds to one of the address lines 9 through 5 The address line number is printed next to the corresponding switch on the interface board Press the side marked 0 to select a binary value of O for the corresponding address bit Press the side marked 1 to select a binary value of 1 for the corresponding address bit Figure C 8 shows the default configuration 300 hex Key W ide you must press do Base I O Addres Hexadecima User Selectable 9 8 7 6 5 4 3 2 Figure C 8 Base I O Address 300 Hex Rev C To change the base I O address remove the plastic cover on U65 press each switch to the desired position check each switch to make sure it is pressed all the way and replace the plastic cover GPIB 410 User Manual C 12 National Instruments Corp Appendix C Hardware and Software Configuration DMA Channel Configuration The DMA channel s used by the GPIB 410 is selected by jumpers on a row of pins located near the I O slot edge connector on the GPIB 410 The GPIB 410 is set to use DMA channel 1 Note Check that this DMA channel is not used by equipment already installed in the PC If a peripheral uses DMA channel 1 you must change the DMA channel used by the GPIB 410 DMA channel 2 is used by the floppy disk Controller in the IBM Personal Computer and the IBM Personal Computer XT DMA channel 3 is used by the fixed disk Controller in the IBM Personal Computer XT The software may be con
16. GPIB 410 are activated by pressing the following keys e lt Alt C gt Capture toggles on and off e lt Alt E gt Capture Echo toggles on and off e lt Alt R gt Recapture e lt Alt T gt Trigger toggles on and off e lt Alt G gt Generate toggles on and off e lt Alt M gt Monitor Input toggles on and off e lt Alt A gt Acceptor Handshaker toggles on and off e lt Alt S gt Source Handshaker toggles on and off e lt Alt D gt DOS Shell e lt Alt I gt DOS Shell Icon lt Alt C gt Capture Use this mode to capture the status of the GPIB as directed by the parameters defined on the Capture Settings screen Pressing lt Alt C gt when a capture is in progress terminates the capture When this mode is active CAP is displayed in the Title Status bar and C is displayed in the DOS shell icon This mode cannot be enabled when triggering is enabled lt Alt E gt Capture Echo Use this mode along with the Capture Display screen to view up to the last sixteen capture samples while a capture operation is still in progress If a capture is not already in progress when this mode is enabled one will be started Disabling this mode will not stop the current capture operation This mode is most suitable for low speed GPIB 410 User Manual 3 8 National Instruments Corp Chapter 3 Overview limited activity situations When this mode is active a blinking CAP is displayed in the Title Status bar an
17. I O port and decodes the lower ten address lines of the PC I O channel The base I O address for the GPIB 410 is determined by the switches at position U49 on the interface board The switches are set at the factory for the I O port address 300 hex This is used as the default base I O address value by the GPIB 410 software The GPIB 410 occupies 32 contiguous bytes of I O space The base address of this 32 byte block of addresses can be any multiple of 20 hex ranging from 000 hex to 3E0 GPIB 410 User Manual C 2 National Instruments Corp Appendix C Hardware and Software Configuration hex for example a base address of 300 hex would occupy the addresses 300 to 31F hex on the interface board Note Check to see that this address is not already used by equipment installed in the IBM Personal Computer This address does not conflict with any of the addresses listed as used or reserved in the IBM Personal Computer Technical Reference Manual however interfaces manufactured by companies other than IBM may use this address National Instruments Corp C 3 GPIB 410 User Manual Hardware and Software Configuration Appendix C Each switch in U49 corresponds to one of the address lines 9 through 5 The address line number is printed next to the corresponding switch on the interface board Press the side marked 0 to select a binary value of O0 for the corresponding address bit Press the side marked 1 to select a binary value of 1 for the c
18. O address configuration Base I O Address field 4 28 overview 2 1 Revision B 2 or higher C 2 to C 4 Revision C C 11 to C 12 Buffer Range for lt Alt W gt field 4 8 to 4 9 G 1 Buffer Setup Action When Buffer Full field 4 7 to 4 8 Buffer Setup Auto Write Each Pass field 4 8 G 1 Buffer Setup Maximum Capacity field 4 7 C capture data saving and viewing See saving and viewing capture data Capture Display Screen description of 4 14 to 4 20 disabled in certain situations 4 14 display window fields columns and indicators 4 15 to 4 17 using the display window 4 18 illustration of 4 14 overview 3 6 selecting from Analyzer Window 3 5 using the search utility 4 19 to 4 20 Capture Echo mode lt Alt E gt 3 8 Capture File Name field 4 9 Capture Load function lt Alt L gt 4 5 4 9 G 2 Capture mode lt Alt C gt 3 8 Capture Settings Screen Buffer Setup Action When Buffer Full field 4 7 to 4 8 Buffer Setup Auto Write Each Pass field 4 8 G 1 Buffer Setup Maximum Capacity field 4 7 Capture Stimulus field 4 5 to 4 6 description of 4 4 to 4 9 disabled in certain situations 4 4 File Setup Buffer Range for lt Alt W gt field 4 8 to 4 9 File Setup Capture File Name field 4 9 illustration of 4 4 overview 3 5 Participate in Handshake field 4 7 selecting from Analyzer Window 3 5 GPIB 410 User Manual Index 2 National Instruments Corp Index Capture Settings Screen continued starting the c
19. Performing the handshake helps prevent capture loss during periods of sustained high speed transfers Selecting no disables participation in the handshake and therefore prevents the GPIB 410 from interfering with the bus activity being captured This handshake feature is independent of the ACP handshaker lt Alt A gt Buffer Setup Maximum Capacity Use this field to allocate a fixed amount of memory in which to store captured bus samples One bus sample requires two bytes of memory The capture buffer is defined in terms of the maximum number of 2 byte entries that can be made in it while capturing is in progress Subject to the memory limitations of your computer any size from 16 to 65535 entries can be entered default 256 entries If the software is unable to allocate a buffer of the requested size an error is returned and the size of the largest buffer available is displayed in this field Warning Resizing the capture buffer can cause existing buffer entries to be lost or truncated Buffer Setup Action When Buffer Full Use this field to specify the action to be taken when the capture buffer fills to capacity while capturing There are two options e stop capture single pass e reset and continue multi pass National Instruments Corp 4 7 GPIB 410 User Manual Software Reference Chapter 4 Selecting the multi pass option causes the GPIB 410 to begin entering new capture samples at the beginning of the buffer ea
20. Technical Publications National Instruments Corporation MS 53 02 512 794 5678 Index A Acceptor Handshake Rate field 4 31 Acceptor Handshaker mode lt Alt A gt 3 10 lt Alt A gt Acceptor Handshaker mode 3 10 lt Alt C gt Capture mode 3 8 4 4 4 5 lt Alt D gt DOS Shell function 3 10 lt Alt E gt Capture Echo mode 3 8 lt Alt G gt Generate mode 3 9 4 21 lt Alt I gt DOS Shell Icon function 3 10 lt Alt L gt Capture Load function 4 5 4 9 G 2 lt Alt M gt Monitor Input mode 3 9 4 2 lt Alt R gt Recapture function 3 9 lt Alt S gt Source Handshaker mode 3 10 lt Alt T gt Trigger mode 3 9 lt Alt W gt Capture Write function File Setup Buffer Range for lt Alt W gt field 4 8 to 4 9 File Setup Capture File Name field 4 9 saving capture information on disk 4 5 G 1 Analyzer Window areas of the screen 3 4 Capture Display Screen 3 6 Capture Settings Screen 3 5 Configuration Settings Screen 3 6 format of illustration 3 4 function key line 3 5 general information display 3 4 help error bar 3 5 Help Utility Screen 3 7 illustration of 3 2 Monitor Analyzer Main Menu Screen 3 1 Pattern Generator Screen 3 6 Program Exit Screen 3 7 selecting screens 3 5 title status bar 3 4 Trigger Specification Screen 3 6 ATN transition event 4 6 Auto Write Each Pass See Buffer Setup Auto Write Each Pass field National Instruments Corp Index 1 GPIB 410 User Manual Index B base I
21. Trigger Specification screen to set up the Trigger Spec 1 Before proceeding to the Trigger Specification screen press lt F6 gt to select the Pattern Generator screen as shown in Figure A 5 Figure A 5 Pattern Generator Screen National Instruments Corp A 7 GPIB 410 User Manual Tutorial Appendix A The default values for the Pattern Generator are used for this example Later you can experiment with any of these settings but for now leave them as they are The current settings are summarized as follows e The GPIB 410 is set to output the contents of the pattern buffer one time e The monitor switches will not be reset to off when the next pattern generation competes e EOI will not be sent with the last byte output in the sequence e The source of the contents of the pattern buffer to be output is defined as the command file GPIB410 PAT Before proceeding examine the contents of the file GPIB410 PAT by turning to Appendix F GPIB410 PAT Source Listing This file written in IBPGL defines a sequence of 16 bit patterns that are loaded into memory prior to execution of the Pattern Generator This area of memory referred to as the pattern buffer is analogous to the capture buffer used for capturing except that its size is determined automatically by the GPIB 410 software After the buffer has been loaded the Pattern Generator can be executed any number of times without reloading until a new filename is specified T
22. a full length slot 9 Locate and remove the bracket that covers the cut out in the back panel for the slot you have selected 10 Install the GPIB 410 BNC I O panel into this slot and re install the bracket retaining screw to secure it to the back panel rail 11 Connect the cables from the BNC I O panel to the round RF connectors on the GPIB 410 Match the connector labeled TRIG OUT J2 on the GPIB 410 to the BNC connector labeled TRIG OUT Match the connector labeled CLK IN J3 on the GPIB 410 to the BNC connector labeled CLK IN Figure 2 1 shows the BNC T O panel and cables connected to the GPIB 410 interface board 12 Replace the top cover and or expansion slot cover plug in the power cord and power up the computer National Instruments Corp 2 3 GPIB 410 User Manual Hardware and Software Installation Chapter 2 Figure 2 1 BNC I O Panel and Cables Connected to the GPIB 410 Interface Board Installed in an IBM Compatible Computer Step 3 Review the Files on the Distribution Diskette The GPIB 410 package contains the Distribution Disk for GPIB 410 GPIB Monitor Analyzer Software hereafter referred to as the distribution diskette Verify that your distribution diskette contains the following files e RI e G e G e G GPIB 410 User Manual EADME PIB410 PIB410 EXE PIB410 CFG HLE Diskette inventory and manual additions Interactive driver program Help text file fo
23. assertion or unassertion of REN SRQ transition Defined as the initial assertion or unassertion of SRQ ATN transition Defined as the initial assertion or unassertion of ATN INTERNAL CLOCK PULSE This option causes the GPIB 410 to sample the bus at regular fixed time intervals Samples are taken regardless of the type or amount of activity occurring on the bus Any one of the following sixteen sample intervals can be selected 0 56 usec 8 96 usec 143 36 usec 2 30 msec 1 12 usec 17 92 usec 286 72 usec 4 60 msec 2 24 usec 35 84 usec 573 44 usec 9 20 msec 4 48 usec 71 68 usec 1 15 msec 18 40 msec EXTERNAL CLOCK PULSE This option causes the GPIB 410 to sample the bus on each occurrence of an external clock pulse The pulse must be supplied by an external device through the CLK input port of the GPIB 410 The actual sampling rate with this option can be fixed or varying depending on the nature of the external clock input GPIB 410 User Manual 4 6 National Instruments Corp Chapter 4 Software Reference Participate in Handshake Use this field to specify whether the GPIB 410 should perform the acceptor handshake when capturing data or command transfers There are two options e yes perform handshaking e no donot perform handshaking Selecting yes causes the GPIB 410 to perform the acceptor handshake only when a data or command byte is transferred on the GPIB and that type of transfer is also a selected capture event
24. builds the pattern buffer in memory When this operation completes the LOADING indicator is erased and the pattern generation sequence begins In rapid succession you will hear three beeps possibly accompanied by a brief flurry of activity on the GPIB monitor indicators The first beep signals the detection of the trigger pattern on the GPIB and you may also notice the TRG indicator change to read CAP Immediately following you hear a second beep which signals the completion of the capture operation and the CAP indicator disappears Finally a third beep indicates that the pattern buffer is successfully output When you are ready to continue press lt Alt G gt to start the Pattern Generator 5 When all of the operations are complete and the status indicators are turned off press lt F5 gt to select the Capture Display screen and view the captured data The results should look similar to Figure A 8 Figure A 8 Captured Data Including Trigger Point GPIB 410 User Manual A 12 National Instruments Corp Appendix A Tutorial The data is displayed in the capture buffer with respect to the trigger event which is the listen address 23 hex or ASCII Following the trigger point a drop in the ATN line and the beginning of the message to Device 3 can be seen Notice that the trigger event is centered within the sixteen captured events as specified on the Trigger Specification screen The two cursors 1 and 2 far left column provided
25. in hearing about the applications you develop using our products To make it easy for you to communicate with us this manual contains forms for you to complete These forms are located in Appendix I Customer Communication at the back of this manual National Instruments Corp xv GPIB 410 User Manual Chapter 1 Introduction This chapter contains a list of the kit contents and optional equipment and the steps for unpacking your GPIB 410 interface board It also contains general information about the GPIB 410 and lists the specifications of the hardware and software The National Instruments GPIB 410 interface board shown in Figure 1 1 transforms a personal computer into a sophisticated IEEE 488 bus monitor and analyzer The GPIB 410 has low level testing and debugging capabilities as well as high level analysis tools Figure 1 1 GPIB 410 Interface Board The GPIB 410 displays the complete status of the GPIB on the screen at all times With sixteen simulated LEDs one for each GPIB signal you receive real time visual information about GPIB activity You can use the GPIB 410 to directly interact with the GPIB through the PC keyboard The sixteen simulated switches can be toggled on and off from the keyboard to assert or unassert each GPIB signal This low National Instruments Corp 1 1 GPIB 410 User Manual Introduction Chapter 1 level control is useful for manually debugging GPIB activity In addition these switches c
26. information display contains menus input fields or other textual information GPIB 410 User Manual 3 4 National Instruments Corp Chapter 3 Overview The help error bar indicates the keys to use for the currently selected menu field or the range of values allowed for data entry This bar also displays error information and other status messages in response to various operations The function key line contains Main Menu and Help screen function keys and additional function keys enabled for the particular screen displayed Screens of the Analyzer Window Five primary screens can be selected from the Main Menu lt F2 gt These screens are selected by pressing lt F3 gt lt F4 gt lt F5 gt lt F6 gt or lt F7 gt e lt F3 gt Capture Settings Screen e lt F4 gt _ Trigger Specification Screen e lt F5 gt Capture Display Screen e lt F6 gt Pattern Generator Screen e lt F7 gt Configuration Settings Screen Note You can return to the Main Menu from any of these screens by pressing lt F2 gt or proceed to another primary screen by pressing the function key of that screen In addition to the five primary screens there are two auxiliary screens that are selected by pressing lt F1 gt or lt Esc gt e lt Fl gt Help Utility Screen e lt Esc gt Program Exit Screen Capture Settings Screen lt F3 gt selects the Capture Settings screen Use this screen to indicate the method o
27. source handshaking a unique string of up to 75 bytes onto the GPIB without creating a pattern command file You can repeat the string automatically up to 65 535 times and you can optionally send EOI along with the last byte in the output sequence Outputting bytes through the input window is roughly equivalent to executing a command file that contains only HANDSHAKE commands Unlike a command file however the input window works in conjunction with the current monitor switch settings Thus for example bytes can be sent out as either data or commands depending on the state of the ATN switch in the monitor window The syntax for the data command strings specified in the input window as well as the HANDSHAKE command has several escape sequences for including special 8 bit codes that are not conveniently entered as standard ASCII characters These escape sequences are initiated with a backslash followed by one or three alphanumeric characters as shown in the following list n ASCII linefeed r ASCII carriage return t ASCII horizontal tab Me ASCII double quote ASCII backslash xNN Any 2 digit hexadecimal number N 0 through 9 A through F National Instruments Corp E 7 GPIB 410 User Manual Using the Pattern Generator Appendix E MMM Any of the GPIB mnemonics shown here caps required DCL 0x14 PPC 0x05 SPE 0x18 GET 0x08 PPU 0x15 TCT 0x09 GTL 0x01 SDC 0x04 UNL 0x3F LLO 0x11 SPD 0x19 UNT
28. the National Instruments Interface Bus Pattern Generating Language IBPGL Developed specifically for use with the GPIB 410 Pattern Generator IBPGL is a simple easy to use language designed for specifying arbitrary patterns to be placed on the GPIB IBPGL is a compiled language in that its commands are used to describe a sequence of 16 bit patterns that are constructed and loaded into memory prior to execution of the Pattern Generator IBPGL consists of only five commands Generally each command can be classified by function as one of the following two types e Pattern creation e Execution control Pattern creation commands add one or more patterns to the pattern buffer for eventual output by the Pattern Generator Because these National Instruments Corp E 1 GPIB 410 User Manual Using the Pattern Generator Appendix E commands specify patterns in terms of changes to the current state of the GPIB as opposed to completely redefining that state with a new 16 bit value each new pattern is constructed by modifying the last pattern placed in the buffer Unless the state of an individual signal line is explicitly changed by a particular command its state remains constant from the previous pattern to the current one Execution control commands create no new patterns but are used to alter the manner in which the pattern buffer is output to the GPIB Regardless of type each command has the following syntax n command arguments
29. the above terms can be included in the expression line_mnemonic although no specific signal line should be mentioned more than once In general the SET command requires at least one operator followed by at least one line_mnemonic Examples of SET a set atn nrfd ndac assert ATN clear NRFD NDAC b set data assert all data lines c set all atn ren clear all lines assert ATN REN As the last example implies ordering is important when any of the composite references DATA CONTROL or ALL are used along with references to specific signal lines If the expression had been written like the following example the net result would be the clearing of all lines in the pattern to zero set atn ren all 2 HANDSHAKE string This command is used to source handshake the specified string of bytes onto the GPIB These bytes are interpreted as either data or commands depending on the state of the ATN line The number of new patterns placed into the pattern buffer by this command equals the number of bytes specified in the expression string The syntax National Instruments Corp E 3 GPIB 410 User Manual Using the Pattern Generator Appendix E 3 wa for string is identical to that described later for text in the Interactive Input Window except that here the text must be enclosed in double quotes for example this is a valid handshake string Notice that unlike the SET command which simply c
30. used to suspend output of the pattern buffer for approximately n msec before proceeding If specified the value n must be an integer in the range 1 to 65 535 If n is omitted its value defaults to 1 000 Because this function relies on the built in timer interrupt of the host PC system pause intervals that do not correspond to an integral number of timer ticks are rounded to the nearest integral value Timer ticks occur approximately once every 55 msec Examples of PAUSE a pause 50 pause for 50 msec b pause pause for 1 sec c pause 3000 pause for 3 sec command command This command is used to group together a sequence of one or more commands into one compound command much like similar constructs found in C or Pascal The command is initiated by the symbol on the first line of the sequence and terminated by the symbol on the last line The commands to be grouped are placed on intervening lines one per line with optional indentation for clarity This command is used for the purpose of applying a single repetition factor to an entire sequence of commands in other words it is used to create a loop National Instruments Corp E 5 GPIB 410 User Manual Using the Pattern Generator Appendix E Example of Dy Ry set atn handshake 0123456789 set all During execution the above sequence of 13 patterns will be output to the GPIB five times IBPGL Tips and Techniques Any of the na
31. when the Program Exit screen is active This screen contains one field e Save Current Configuration Before Exiting Save Current Configuration Before Exiting Use this field to specify whether to save to disk the current state of the GPIB 410 software before you exit There are two options e yes save configuration to disk e no donot save configuration Selecting yes causes the field contents of the following screens to be saved to the indicated file upon program exit e Capture Settings Screen e Trigger Specification Screen e Pattern Generator Screen e Configuration Settings Screen Press lt Esc gt while the Program Exit Screen is active to execute the selected option and exit the program Press any other screen function key to abort the exit sequence and go to that screen Note The default configuration file pathname is GPIB410 CFG The software automatically searches for this file on program startup and if found loads its contents If you use a different configuration file pathname you must explicitly name the file on the DOS command line to reload when you later restart the program for example A gt gpib410 myfile cfg National Instruments Corp 4 33 GPIB 410 User Manual Appendix A Tutorial This chapter contains examples that guide you through step by step demonstrations of some fundamental capabilities of the GPIB 410 These examples assume the following e No devices are connected to the GPIB
32. wire wrap posts are used to select the interrupt line The interrupt jumper array W3 is located on the interface board with lines I2 through I7 Figure C 5 shows the factory configuration for IRQ Line 7 Figure C 6 shows the selection of IRQ Lines 6 and 2 INT NOT N OO PO Figure C 5 Factory Default IRQ Line 7 Selected Rev B 2 or Higher Figure C 6 IRQ Lines 6 and 2 Selected Rev B 2 or Higher GPIB 410 User Manual C 8 National Instruments Corp Appendix C Hardware and Software Configuration In the space provided here record the new settings of the base I O address the DMA channel and the IRQ line so that you will have them handy when you install the software GPIB 410 New Setting Base I O Address DMA Channel Interrupt Request Line National Instruments Corp C 9 GPIB 410 User Manual Hardware and Software Configuration Appendix C Hardware Revision C Figure C 7 shows the parts locator diagram with the base I O address switches U65 the DMA channel jumpers and the interrupt jumpers If you change any hardware settings make note of them in the spaces provided later in this appendix as you will use them to reconfigure the software Co css E Lsa b 3441 z TE 019 U45 D ae L532 SETET LSS uig Bm ydd u0 ia lt L532 E3441 b C5245 Ut Mo m43 o u69 La El ij L532 E 3441 p issa i u16 mL Lee awa 2 ia ui Ts POLS 2521 b L53273 b L523 Ui
33. 01 Type X1 Cable 2 m 763001 02 Type X1 Cable 4 m 763001 03 Double Shielded GPIB Cables Type X2 Cable 1 m 763061 01 Type X2 Cable 2 m 763061 02 Type X2 Cable 4 m 76306 1 03 Unpacking Your GPIB 410 Follow these steps when unpacking your GPIB 410 1 Verify that the pieces contained in the package you received match the kit parts list given earlier in this chapter Do not remove the board from its plastic bag at this point 2 Your GPIB 410 board is shipped packaged in an antistatic plastic bag to prevent electrostatic damage to the board Several components on the board can be damaged by electrostatic discharge To avoid such damage in handling the board touch the plastic bag to a metal part of your computer chassis before removing the board from the bag 3 Remove the board from the bag and inspect the board for loose components or any other sign of damage Notify National Instruments if the board appears damaged in any way Do not install a damaged board into your computer National Instruments Corp 1 3 GPIB 410 User Manual Introduction Chapter 1 Hardware Specifications The GPIB 410 hardware is a full sized printed circuit board that fits into a PC expansion slot Board Size 13 25 in x 3 75 in Maximum Power Consumption 0 6 A ati V Temperature Range Operating 0 to 50 C Storage 62 to 71 C Relative Humidity Operating 10 to 90 non condensing Storage 0 to 100 non condensing Maximum
34. 26 to 4 26 text fields 3 12 title status bar Analyzer Window 3 4 Trigger Action field 4 13 to 4 14 GO TO label option 4 13 STOP AND SOUND SPEAKER option 4 14 TRIGGER WITH POSITION option 4 13 Trigger mode lt Alt T gt 3 9 Trigger Specification Screen considerations for defining 4 11 Data Control Specification Trigger Pattern field 4 12 description of 4 9 to 4 14 disabled in certain situations 4 10 illustration of 4 10 overview 3 6 Pattern Repetition Factor field 4 12 Pulse Output Port field 4 12 selecting from Analyzer Window 3 5 specifying patterns 4 10 to 4 11 Trigger Action field 4 13 to 4 14 triggering and pattern generating example A 7 to A 13 troubleshooting D 1 to D 4 tutorial capturing data from the GPIB A 1 to A 7 triggering and pattern generating A 7 to A 13 U unpacking the GPIB 410 1 3 National Instruments Corp Index 11 GPIB 410 User Manual Index Vv viewing capture data See saving and viewing capture data GPIB 410 User Manual Index 12 National Instruments Corp
35. 27 GPIB 410 User Manual Software Reference Chapter 4 Computer Speaker Mode Use this field to enable or disable use of the computer speaker There are two options e Audible Silent Selecting Audible enables the GPIB 410 to beep whenever an error or other important event occurs during operation Selecting Silent inhibits this feature of the software and may result in a slight performance gain under some operating conditions Base I O Address Use this field to enter the port address of the GPIB 410 interface board This value must match the setting configured in the address switches on the interface board itself Valid port addresses range from 000 to 3E0 hex in multiples of 20 hex default 300 hex A good way to test if the value contained in this field is correct is to examine the sixteen GPIB indicators in the Monitor window If all of the indicators are on or if they repeatedly flicker on and off in an irregular manner the base I O address setting is probably incorrect Power down your computer verify the switch settings on the interface board and try again Warning Attempting to operate some functions of the GPIB 410 software with an address already in use by another device may crash your system or have other unpredictable effects Input DMA Channel Use this field to specify the method by which captured data is unloaded from the onboard memory of the GPIB 410 into the system memory of the host PC There are fo
36. 3 03480 30673 32 848600 2265887 91 640 0533 08 730 43 70 056 20 51 55 02 737 4644 0635 523154 GPIB 410 User Manual Technical Support Form Photocopy this form and update it each time you make changes to your software or hardware and use the completed copy of this form as a reference for your current configuration Completing this form accurately before contacting National Instruments for technical support helps our applications engineers answer your questions more efficiently If you are using any National Instruments hardware or software products related to this problem include the configuration forms from their user manuals Include additional pages if necessary Name Company Address Fax Phone Computer brand Model Processor Operating system Speed MHz RAM M Display adapter Mouse yes no Other adapters installed Hard disk capacity M Brand Instruments used National Instruments hardware product model Revision Configuration continues National Instruments software product Version Configuration The problem is List any error messages The following steps will reproduce the problem GPIB 410 Hardware and Software Configuration Form Record the settings and revisions of your hardware and software on the line located to the right of each item Complete this form each time you revise your softwar
37. 7 Pattern Buffer Source field COMMAND FILE option 4 23 INPUT WINDOW option 4 23 to 4 24 pattern generator See also Trigger Specification Screen GPIB410 PAT source listing F 1 to F 2 input window method E 7 to E 8 Interface Bus Pattern Generating Language execution control commands E 2 HANDSHAKE command E 3 to E 4 INCLUDE command E 4 to E 5 pattern creation commnands E 1 to E 2 PAUSE command E 5 to E 6 SET command E 2 to E 3 tips and techniques E 6 overview E 1 triggering and pattern generating example A 7 to A 13 Pattern Generator Screen Clear Switches When Done field 4 22 description of 4 20 to 4 24 disabled in certain situations 4 21 discrepancies during high speed DMA operation 4 21 illustration of 4 20 No of Times to Execute field 4 22 overview 3 6 Pattern Buffer Source field 4 23 to 4 24 selecting from Analyzer Window 3 5 Send EOI with Last Byte field 4 22 starting the Pattern Generator 4 21 Pattern Repetition Factor field 4 12 PAUSE command IBPGL E 5 to E 6 problem solving D 1 to D 4 Program Exit Screen description of 4 32 to 4 33 illustration of 4 32 overview 3 7 Save Current Configuration Before Exiting field 4 33 selecting from Analyzer Window 3 5 Pulse Output Port field 4 12 National Instruments Corp Index 9 GPIB 410 User Manual Index R Recapture function lt Alt R gt 3 9 REN transition event 4 6 revisions difference between software revisions H 1 to H 2 Revision
38. AL INSTRUMENTS PRODUCTS National Instruments products are not designed with components and testing intended to ensure a level of reliability suitable for use in treatment and diagnosis of humans Applications of National Instruments products involving medical or clinical treatment can create a potential for accidental injury caused by product failure or by errors on the part of the user or application designer Any use or application of National Instruments products for or involving medical or clinical treatment must be performed by properly trained and qualified medical personnel and all traditional medical safeguards equipment and procedures that are appropriate in the particular situation to prevent serious injury or death should always continue to be used when National Instruments products are being used National Instruments products are NOT intended to be a substitute for any form of established process procedure or equipment used to monitor or safeguard human health and safety in medical or clinical treatment Contents About This Manual 5 iciiicsssncciamiminioneenanseaiemonaeanks xi Organization of This Manual eee cee ceeceeceeeeeseeeseeeeee xi Conventions Used in This Manual 0 00 cece eeeeeeeeeeeeeeneeen xiii ADDIE VIALIONS sesieicsieeren i ri psr ia xiv A CrON yS a e erer EA E E e a xiv Related Doctument 5 23 02 ss3sss sees ssesetdagsacsastsssecetesdhssicnaksdesthess sees XV Customer Communication 0 cece eeeeecece
39. B 2 hardware configuration C 1 to C 9 Revision C hardware configuration C 10 to C 19 run time flags G 4 S Save Current Configuration Before Exiting field 4 33 saving and viewing capture data G 1 to G 6 Auto write function G 1 Buffer Range for lt Alt W gt field G 1 Capture Load function G 2 FMT410 utility G 2 to G 6 Immediate write function G 1 run time flags G 4 search pattern definition window 4 19 to 4 20 SELECTED GPIB EVENTS option 4 6 Send EOI with Last Byte field 4 22 SET command IBPGL E 2 to E 3 signal lines for DMA channels Revision B 2 or higher C 5 Revision C C 13 single pass buffer option 4 7 software See also Analyzer Window Monitor Window names of specific screens operational modes and function configuration C 18 to C 19 difference between revisions H 1 to H 2 general input conventions 3 11 to 3 14 direct input fields 3 12 key select fields 3 13 option ring fields 3 13 overview 3 11 to 3 12 installation 2 4 to 2 5 specifications 1 4 starting the GPIB 410 program 3 1 Source Handshake Rate field 4 31 to 4 32 Source Handshaker mode lt Alt S gt 3 10 GPIB 410 User Manual Index 10 National Instruments Corp Index speaker mode selecting 4 27 specifications hardware specifications 1 4 software specifications 1 4 SRQ transition event 4 6 Status Refresh Rate field 4 30 switches See jumpers and switches T technical support ix I 1 terminal hardware selecting 4
40. Bus Sampling Rate 1 8 MHz Software Specifications The GPIB 410 software is supplied on one double sided double density diskette The software runs on the IBM Personal Computer or any IBM compatible computer You must have MS DOS Version 3 00 or higher and at least 128K of RAM 256K of RAM recommended GPIB 410 User Manual 1 4 National Instruments Corp Chapter 2 Hardware and Software Installation This chapter contains the steps for installing your hardware and software Install your GPIB 410 using the following steps 1 Configure the hardware 2 Install the hardware 3 Review the files on the distribution diskette 4 Run the hardware diagnostics These steps are described in detail in the remainder of this chapter Step 1 Configure the Hardware The GPIB 410 hardware is configured at the factory Verify that the settings of the GPIB 410 do not conflict with another board in your system The factory configuration parameters are as follows e The GPIB 410 occupies 32 contiguous bytes of I O space The base address of this 32 byte block of addresses can be any multiple of 20 hex ranging from 000 hex to 3E0 hex The GPIB 410 is configured at the factory with a base address of 300 hex therefore occupying addresses 300 to 31F hex of your PC I O space If another board in your system uses one or more of these addresses refer to Appendix C to change the GPIB 410 base address and to match the software configuration to the
41. GPIB 410 User Manual March 1994 Edition Part Number 320053 01 Copyright 1986 1994 National Instruments Corporation All Rights Reserved National Instruments Corporate Headquarters 6504 Bridge Point Parkway Austin TX 78730 5039 512 794 0100 Technical support fax 800 328 2203 512 794 5678 Branch Offices Australia 03 879 9422 Austria 0662 435986 Belgium 02 757 00 20 Canada Ontario 519 622 9310 Canada Qu bec 514 694 8521 Denmark 45 76 26 00 Finland 90 527 2321 France 1 48 14 24 24 Germany 089 741 31 30 Italy 02 48301892 Japan 03 3788 1921 Mexico 95 800 010 0793 Netherlands 03480 33466 Norway 32 84 84 00 Singapore 2265886 Spain 91 640 0085 Sweden 08 730 49 70 Switzerland 056 20 51 51 Taiwan 02 377 1200 U K 0635 523545 Limited Warranty The GPIB 410 is warranted against defects in materials and workmanship for a period of two years from the date of shipment as evidenced by receipts or other documentation National Instruments will at its option repair or replace equipment that proves to be defective during the warranty period This warranty includes parts and labor The media on which you receive National Instruments software are warranted not to fail to execute programming instructions due to defects in materials and workmanship for a period of 90 days from date of shipment as evidenced by receipts or other documentation National Instruments will at its option repair or rep
42. I text the quantity of output can add up quickly To alleviate this problem the run time flags in Table G 1 are used to condense or eliminate portions of FMT410 output if desired Table G 1 Run Time Flags tnumber Output only the capture table indicated by number If number is omitted the number of tables contained in the file is shown on the screen This flag is used with Revision A capture files which may contain more than one capture table Revision B and C GPIB 410 software only store one capture table per file inumber Begin output range at index number Default range begins at index 0 of each capture table cnumber Limit output range to count of number entries Default range extends to the end of each capture table foption Modify formatted output of each capture table Do not format position display column Do not format data control binary display columns Do not format remarks display column Format control column in hexadecimal xoption Extract capture information without headers or formatting If this flag is specified all f options are ignored Extract all data control entries in output range Extract only valid data bytes in output range If the e option is specified also extract the accompanying control bytes Extract only valid command bytes in output range If the e option is specified also extract the accompanying control bytes h or Display an online help screen describing each of the ab
43. IB 410 User Manual 4 18 National Instruments Corp Chapter 4 Software Reference Using the Search Utility Press function key lt F10 gt to display the search pattern definition window shown in Flgure 4 5 Figure 4 5 Search Pattern Definition Window Use the pattern definition field to specify a 16 bit pattern for which you want the GPIB 410 to search for in the capture buffer The ordering of the signal lines in the pattern is identical to that shown in the Monitor window Construct the search pattern by pressing the indicated letter keys to select a 0 1 or x don t care condition for each bit position of a captured status The topmost row of letters on the keyboard manipulates the data portion of the pattern and the next row of letters manipulates the control portion Use the Insert key lt Ins gt to place a single 8 bit ASCII or 2 digit hexadecimal value directly into the data portion of the pattern National Instruments Corp 4 19 GPIB 410 User Manual Software Reference Chapter 4 Once a pattern is constructed use the left and right cursor control keys to search up or down in the buffer from the currently active cursor position Use the lt Ctrl gt left and right cursor control keys to search for an entry which does not match the pattern When a non matching entry is found the currently active cursor is moved to the position of that entry If the end of the buffer is reached while searching in either direction
44. MA channel selected for capturing and DMA channel 3 selected for sourcing Figure C 11 shows DMA channel selected for capturing with no DMA channel selected for sourcing Programmed I O must be used in this case Used to set the interrupt selection Sp Bir AO ee Rie A Figure C 9 Factory Default DMA Channel 1 Rev C GPIB 410 User Manual C 14 National Instruments Corp Appendix C Hardware and Software Configuration Used to set the interrupt selection pO ae eh Figure C 10 DMA Channel 1 for Capturing and DMA Channel 3 for Sourcing Rev C Used to set the interrupt selection A OE AGEs A Sa eee Figure C 11 DMA Channel 1 for Capturing and no DMA Channel for Sourcing Rev C National Instruments Corp C 15 GPIB 410 User Manual Hardware and Software Configuration Appendix C Interrupt Selection The GPIB 410 is configured to use Interrupt Request IRQ Line 7 One jumper and six dual wire wrap posts are used to select the interrupt line The interrupt jumper array is located on the interface board with lines I2 through I7 Figure C 12 shows the factory configuration for Interrupt Line 7 Figure C 13 shows Interrupt Lines 6 and 2 Key EE Used to set the DMA channels INT NO TN OD Figure C 12 Factory Default IRQ Line 7 Selected Rev C GPIB 410 User Manual C 16 National Instruments Corp Appendix C Hardware and Software Configuration Key EN Used to set the DMA cha
45. MER NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA PROFITS USE OF PRODUCTS OR INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY THEREOF This limitation of the liability of National Instruments will apply regardless of the form of action whether in contract or tort including negligence Any action against National Instruments must be brought within one year after the cause of action accrues National Instruments shall not be liable for any delay in performance due to causes beyond its reasonable control The warranty provided herein does not cover damages defects malfunctions or service failures caused by owner s failure to follow the National Instruments installation operation or maintenance instructions owner s modification of the product owner s abuse misuse or negligent acts and power failure or surges fire flood accident actions of third parties or other events outside reasonable control Copyright Under the copyright laws this publication may not be reproduced or transmitted in any form electronic or mechanical including photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation Trademarks Product and company names listed are trademarks or trade names of their respective companies WARNING REGARDING MEDICAL AND CLINICAL USE OF NATION
46. Manual H 2 National Instruments Corp Appendix I Customer Communication For your convenience this appendix contains forms to help you gather the information necessary to help us solve technical problems you might have as well as a form you can use to comment on the product documentation Filling out a copy of the Technical Support Form before contacting National Instruments helps us help you better and faster National Instruments provides comprehensive technical assistance around the world In the U S and Canada applications engineers are available Monday through Friday from 8 00 a m to 6 00 p m central time In other countries contact the nearest branch office You may fax questions to us at any time Corporate Headquarters 512 795 8248 Technical support fax Branch Offices Australia Austria Belgium Denmark Finland France Germany Italy Japan Mexico Netherlands Norway Singapore Spain Sweden Switzerland Taiwan U K 800 328 2203 512 794 5678 Phone Number 03 879 9422 0662 435986 02 757 00 20 45 76 26 00 90 527 2321 1 48 14 24 00 089 741 31 30 02 48301892 03 3788 1921 95 800 010 0793 03480 33466 32 848400 2265886 91 640 0085 08 730 49 70 056 20 51 51 02 377 1200 0635 523545 National Instruments Corp El Fax Number 03 879 9179 0662 437010 19 02 757 03 11 45 76 71 11 90 502 2930 1 48 14 24 14 089 714 60 35 02 48301915 03 3788 1923 95 800 010 079
47. PE serial poll enable IFC interface clear SRQ service request LA listen address group TCT take control 0 to 30 TA talk address group LLO local lock out 0 to 30 PPC parallel poll configure UCG universal command group PPE parallel poll enable UNL unlisten PPD parallel poll disable UNT untalk Appendix B Multiline Interface Messages contains a listing of all IEEE 488 mnemonics and their ASCII equivalents For a complete listing and detailed explanation of all IEEE 488 mnemonics refer to the ANSI IEEE publication IEEE Standard Digital Interface for Programmable Instrumentation A line mnemonic followed by an up arrow indicates that the corresponding line was asserted since the last entry was made a down arrow indicates that the line was unasserted since the last entry was made A mnemonic by itself indicates a pulse or other isolated event occurred on the corresponding line All transitions and pulses within an entry are flagged regardless of the event that actually caused the capture An entry labeled OVERFLOW indicates that one or more capture events were missed or lost between that entry and the entry preceding it Such breaks in capture continuity usually occur during periods of sustained high speed sampling rates with GPIB 410 handshaking disabled or when two capture events occur within 500 nsec of each other National Instruments Corp 4 17 GPIB 410 User Manual Software Reference Chapter 4 Using the Di
48. Rev B 2 or Higher Signal Lines DMA DMA DMA Channel Acknowledge Request 1 Two jumpers must be installed to select a DMA channel The DMA Acknowledge DACK and DMA Request DREQ lines selected must have the same number suffix for proper operation Figure C 3 shows the jumper placement for the factory default DMA channel 1 Figure C 4 shows the jumper placement to select DMA channel 2 and DMA channel 3 National Instruments Corp C 5 GPIB 410 User Manual Hardware and Software Configuration Appendix C Note The pins S1 through S3 are used by the GPIB 410 software Revision B or higher for the pattern generator Refer to the section Hardware Revision C later in this chapter for a discussion of DMA channel configuration for both capturing and sourcing ANa Dri aod BU DACK 1 Selected DREQ 1 Selected Figure C 3 Factory Default DMA Channel 1 Rev B 2 or Higher GPIB 410 User Manual C 6 National Instruments Corp Appendix C Hardware and Software Configuration OS es loa a nN Unna AnNnnaana dD DACK 2 Selected DREQ 2 Selected OS mi N nN Unna ANnNnnnaad DACK 3 Selected DREQ 3 Selected Figure C 4 DMA Channel Jumper Settings for DMA Channels 2 and 3 Rev B 2 or Higher National Instruments Corp C 7 GPIB 410 User Manual Hardware and Software Configuration Appendix C Interrupt Selection The GPIB 410 is configured to use Interrupt Request IRQ Line 7 One jumper and six dual
49. S U41 UB 424d s b L52521 b L55273 b L52753 uta u40 M UBB moreu ss E ALSS74 LS273 HTE U1 u39 m eS b ALSS74 F L273 E L52521 U12 U38 UB4 H b az5155A f L52735 E L55 7 Uii U3 UES Figure C 7 GPIB 410 Parts Locator Diagram Rev C GPIB 410 User Manual C 10 National Instruments Corp Appendix C Hardware and Software Configuration Base I O Address Configuration The GPIB 410 is addressed as an I O port and decodes the lower ten address lines of the PC I O channel The base I O address for the GPIB 410 is determined by the switches at position U65 on the interface board The switches are set at the factory for the I O port address 300 hex This is used as the default base I O address value by the GPIB 410 software The GPIB 410 occupies 32 contiguous bytes of I O space The base address of this 32 byte block of addresses can be any multiple of 20 hex ranging from 000 hex to 3E0 hex for example a base address of 300 hex would occupy the addresses 300 to 31F hex on the interface board Note Check to see that this address is not already used by equipment installed in the IBM Personal Computer This address does not conflict with any of the addresses listed as used or reserved in the IBM Personal Computer Technical Reference Manual however interfaces manufactured by companies other than IBM may use this address National Instruments Corp C 11 GPIB 410 User Manual Hardware and Software Configuration Appendix C
50. There is also an overview of the menu screens and operational modes and the input conventions used in the software e Chapter 4 Software Reference contains reference material for the GPIB 410 software It contains information about the Monitor window and the various screens of the Analyzer window and their respective input fields National Instruments Corp xi GPIB 410 User Manual About This Manual e Appendix A Tutorial contains examples that guide you through step by step demonstrations of some fundamental capabilities of the GPIB 410 e Appendix B Multiline Interface Messages contains an interface message reference list which describes the mnemonics and messages that correspond to the interface functions e Appendix C Hardware and Software Configuration describes how to reconfigure the GPIB 410 hardware and software e Appendix D Common Problems contains possible causes for common problems encountered when operating the GPIB 410 e Appendix E Using the Pattern Generator describes the Interface Bus Pattern Generating Language IBPGL and syntax conventions for data command strings e Appendix F GPIB410 PAT Source Listing contains a source listing of the IBPGL example program GPIB410 PAT e Appendix G Saving and Viewing Capture Information on Disk describes saving and viewing capture buffers on disk Also included is a description of the FMT410 utility e Appendix H Differences Between Software Revisions
51. allation and performance related parameters as necessary for correct operation of the GPIB 410 software Note If you have changed any of the switches or jumpers on the interface board make the changes to this screen to reflect those changes the hardware and software settings must match Appendix C contains additional information on configuring your hardware GPIB 410 User Manual 3 6 National Instruments Corp Chapter 3 Overview Help Utility Screen lt F1 gt selects the Help Utility screen Use this screen to obtain information about a particular primary screen or one of its input fields You can only exit the Help screen by typing lt FI gt To select a field for help use the cursor control keys that is the arrow keys to highlight the field then press lt F1 gt Once the Help screen appears use lt PgDn gt or the down arrow key to read the information If you would like to read something that has already scrolled off the screen press lt F1 gt twice to exit and re activate the Help screen Program Exit Screen lt Esc gt selects the Program Exit screen Use this screen to specify whether to save the current state of the software upon termination of the GP1IB410 program You can only terminate the GPIB410 program when the Program Exit screen is active National Instruments Corp 3 7 GPIB 410 User Manual Overview Chapter 3 Operational Modes and Functions The various operational modes and functions of the
52. an be manipulated automatically at high speed by the Pattern Generator utility when real time testing and simulation are required The GPIB 410 has high level GPIB analysis tools It can capture large amounts of information from the GPIB at full speed without interfering with GPIB activity This capture of GPIB status can be related to specific user selectable GPIB events a user selectable internal clock rate or an external clock input This information is then interpreted in a high level format You can browse or pattern search through the captured data directly on the screen log it to a disk and obtain a printed output copy With multiple level triggering you can trigger on a pattern or sequence of patterns on the GPIB This triggering feature is useful in focusing on a particular range of activity for capture What Your Kit Contains Your kit should contain the following components GPIB 410 Interface Board 180280 01 BNC I O Panel with Two Input Output Cables 180285 01 5 25 in Distribution Disk for GPIB 410 GPIB 420302 10 Monitor Analyzer Software or 3 5 in Distribution Disk for GPIB 410 GPIB 422302 10 Monitor Analyzer Software GPIB 410 User Manual 320053 01 Make sure each of these items is in your kit If any item is missing contact National Instruments GPIB 410 User Manual 1 2 National Instruments Corp Chapter 1 Introduction Optional Equipment Single Shielded GPIB Cables Type X1 Cable 1 m 763001
53. apture operation 4 4 Capture Stimulus field 4 5 to 4 6 EXTERNAL CLOCK PULSE option 4 6 INTERNAL CLOCK PULSE option 4 6 SELECTED GPIB EVENTS option 4 6 Capture Write function lt Alt W gt File Setup Buffer Range for lt Alt W gt field 4 8 to 4 9 File Setup Capture File Name field 4 9 saving the capture buffer on disk 4 5 G 1 capturing data from the GPIB example A 1 to A 7 Clear Switches When Done field 4 22 COMMAND transfer event 4 6 common problems D 1 to D 4 Computer Display Mode field 4 26 to 4 26 Computer Keyboard Mode field 4 26 Computer Speaker Mode field 4 27 configuration See also Configuration Settings Screen base I O address Revision B 2 or higher C 2 to C 4 Revision C C 11 to C 12 diagnostics for hardware configuration 2 5 DMA channel Revision B 2 or higher C 5 to C 7 Revision C C 13 to C 15 factory configuration parameters 2 1 to 2 2 hardware configuration procedure for 2 1 to 2 2 Revision B 2 or higher C 1 to C 9 Revision C C 10 to C 17 interrupt level Revision B 2 or higher C 8 Revision C C 16 to C 17 parts locator diagram Revision B 2 or higher C 2 Revision C C 10 Save Current Configuration Before Exiting field 4 33 software configuration C 18 to C 19 Configuration Settings Screen Acceptor Handshake Rate field 4 31 Base I O Address field 4 28 Computer Display Mode field 4 26 to 4 26 Computer Keyboard Mode field 4 26 Computer Speaker Mode field 4 27 National Instruments Co
54. at contains information about the size of the table and the configuration of the GPIB 410 software at the moment that the capture was started Like the header the capture table is also stored in binary to reduce the size of the overall file as well as improve the speed and efficiency of the write operations The size in bytes of the table is equal to the total number of entries saved times two Data bytes National Instruments Corp G 1 GPIB 410 User Manual Saving and Viewing Capture Information on Disk Appendix G are positioned at even offsets from the beginning of the table while control bytes are positioned at odd offsets The following two techniques are available for retrieving captured data from a file on disk e The Capture Load function lt Alt L gt e The FMT410 utility The Capture Load function loads back into the capture buffer the file specified on the Capture Settings screen To load the specified file press lt Alt L gt Once the file is loaded all of the standard editing features of the Capture Display screen can be used To format the contents of capture files into a more familiar ASCII form for viewing or printing outside of the GPI1B410 program use the FMT410 utility The syntax used to start FMT410 is as follows FMT410 flags filename The flags shown in the above line are optional they are described later in this appendix These flags are used to tailor the output of FMT410 to specific needs or situations I
55. auses a static pattern to be placed onto the GPIB patterns specified using the HANDSHAKE command cause one cycle of the source handshake to be executed as each pattern is output to the bus Thus the HANDSHAKE command is roughly equivalent to a sequence of several SET commands for each byte in string as illustrated below handshake a is conceptually similar to set data dav d7 d6 dl implicit wait for NRFD to be cleared set dav implicit wait for NDAC to be cleared set dav As indicated in the illustration the DAV line is automatically set to 0 at the beginning of any HANDSHAKE command DAV is the only control line affected by this command Examples of HANDSHAKE a handshake abcdefghijklmnopqrstuvwxyz r n b handshake x41 x42 x43 x44 x4A x4B x4C x4D c handshake UNT UNL x41 TCT INCLUDE filename This command is used to include the contents of another command file in line with the contents of the current command file Files included in this manner may also contain INCLUDE commands The number of new patterns placed into the pattern buffer by this command depends on the number and type of commands contained in the included file The term filename must be a valid DOS pathname of 47 characters or less GPIB 410 User Manual E 4 National Instruments Corp Appendix E Using the Pattern Generator 4 5 Examples of INCLUDE a include myfile pat b include a tmp test3 pat PAUSE 7 This command is
56. ble PPU Parallel Poll Unconfigure TCT Take Control SDC Selected Device Clear UNL Unlisten SPD Serial Poll Disable UNT Untalk National Instruments Corp B 3 GPIB 410 User Manual Appendix C Hardware and Software Configuration This appendix describes how to reconfigure the GPIB 410 hardware and software configurations There are two different revisions of hardware Revision B 2 or higher and Revision C Refer to the appropriate section of this appendix for the revision of hardware you are using Hardware Revision B 2 or Higher This section describes how to reconfigure the GPIB 410 hardware Revision B 2 or higher configuration If you change any hardware settings make note of them in the spaces provided later in this appendix as you will use them to reconfigure the software National Instruments Corp C 1 GPIB 410 User Manual Hardware and Software Configuration Appendix C Figure C 1 shows the portion of the parts locator diagram with the base I O address switches U49 the DMA channel jumpers W1 and W2 and the interrupt jumpers W3 C23 p ezsiss b Lss o O Eo L53574 E LS2T3 bo oszaz3 oO I e LS273 ci C a LS273 bo saz o o 2o eee b saza O 1 Pasa P olsza o bo soo C20 L532 Fas Ee L500 b osu P L00 Ue P L20 F LSi26 CE b lso r isos HHI EH Be CA hd e Figure C 1 GPIB 410 Parts Locator Diagram Rev B 2 or Higher Base I O Address Configuration The GPIB 410 is addressed as an
57. ch time the buffer fills up Previous buffer entries are overwritten This cyclical action continues indefinitely until you stop the capture by typing lt Alt C gt at which point the buffer is unwound so that the most recently captured samples can be reviewed in chronological order Buffer Setup Auto Write Each Pass Use this field to specify whether to save the results of the next capture operation automatically to a file on disk There are two options e yes write each buffer pass to disk e no do not write to disk Selecting yes causes the results of future capture operations to be written to the specified file whenever the capture buffer is full or capturing is stopped To implement a continuous capture operation to disk combine this option with a circular buffer by configuring the following fields on the capture settings screen as shown Action when buffer full reset and continue Auto write each pass yes Capture file name filename cap Note Selecting yes for the Auto write each pass field does not cause the current contents of the capture buffer to be saved to disk you must explicitly type lt Alt W gt to do this File Setup Buffer Range for lt Alt W gt Use this field to specify the portion of the capture buffer to be written to disk when you type lt Alt W gt There are two options entire buffer bd cursor to cursor Selecting entire buffer causes all entries in the capture buffer to be
58. cneceeceeeeseesseeaeesees XV Chapter 1 Tinh OCU COIN ile ee tered uote duis 1 1 What Your Kit Contains 200 cece ce eeceeeeeeeeseeeeecseesaecaeesaecnse 1 2 Optional Equipment 2 0ssscse sscssecsees seb esescsevechsostseesnccessesbenstpets 1 3 Unpacking Your GPIB 410 oo ce cee ceecneeeeeeseeseeeeees 1 3 Hardware Specifications cece ceceeeeeeeeecseeseeaeceeeeesess 1 4 Software Specifications occ ec ceececeeceeeseesseeseeseeeeseeeeneenees 1 4 Chapter 2 Hardware and Software Installation 0 0 000000 0 0 2 1 Step 1 Configure the Hardware ee ee eee ceeeeeeeeeee eens 2 1 Step 2 Install the Hardware 20 ee eeeeeeeeeree eee eem 2 2 Step 3 Review the Files on the Distribution Diskette 2 4 Step 4 Run the Hardware Diagnostics eee eee eeeee 2 5 Chapter 3 Software Overview jsiescuisanenintea Mane anonuitageumagn 3 1 The Monitor Window 00 00 eeeececeeseesseceeceeceeeseeeeeeseeseecaecaeenaee 3 3 The Analyzer Window semone eestedeseteeee 3 4 Screens of the Analyzer Window 0 0 0 ceceeeeeeeecreeeeeeeeeneeeen 3 5 Capture Settings Screen 0 0 eeeeeeeseeeeeeeeeeene 3 5 Trigger Specification Screen oe eeseeteeeeeeeeee 3 6 Capture Display Screen eee eeeseeceeeseeeceeeeeeees 3 6 Pattern Generator Screen eee eee eseeeeeeeeeee cee ceeeeeees 3 6 Configuration Settings Screen eee eee eee eee 3 6 Help Utility Screen isere cece ceseeseeeeeeeeeseeeneense 3 7 Program Exit SCreens scssessie
59. d C is displayed in the DOS shell icon lt Alt R gt Recapture Use this function to recapture the results of the last successful capture operation after the Capture Display screen has been cleared An error is signaled if any portion of the previous capture has been overwritten by a subsequent capture This function can also be used to recover the results of an untriggered background capture see Chapter 4 The Trigger Specification Screen This function executes quickly and does not have an indicator in the Title Status bar lt Alt T gt Trigger Use this mode to wait for the pattern sequence defined on the Trigger Specification screen to occur on the GPIB When this mode is active TRG is displayed in the Title Status bar and T is displayed in the DOS shell icon This mode cannot be enabled when capturing is enabled lt Alt G gt Generate Use this mode to output a sequence of data control patterns onto the GPIB as specified on the Pattern Generator screen When this mode is active GEN is displayed in the Title Status bar and G is displayed in the DOS shell icon This mode cannot be enabled when the Source Handshaker is enabled lt Alt M gt Monitor Input Use this mode to direct subsequent input into the upper window of the screen so that you can manipulate the individual lines of the GPIB When this mode is active MON is displayed in the Title Status bar In addition to lt Alt M gt pressing the function key of the current
60. dshake lines The ordering of these lines is the same as that shown in the right half of the Monitor window e Pgo This indicator is present when an oversized capture file is partially loaded and available for paging equals the offset of the currently loaded page File pages start at zero and are equal in size to the currently defined capture buffer e Up or down arrow indicators are present in the status bars when the capture buffer contains more entries beyond the indicated display window boundaries e Up or down triangle indicators are present in the status bars when a loaded capture file contains more pages beyond the indicated capture buffer boundaries e The large section on the right of the window describes each buffer entry using typical IEEE 488 mnemonics The first column within this section is reserved for mnemonic interpretation of the eight bus GPIB 410 User Manual 4 16 National Instruments Corp Chapter 4 Software Reference data lines The remaining space on each line is used to flag pulses or state transitions occurring on the five bus management lines from entry to entry The GPIB 410 software uses the following IEEE 488 mnemonics ACG addressed command group PPU parallel poll unconfigure ATN attention REN remote enable DAB data byte SC secondary command group DCL device clear 0 to 31 EOI end or identify SDC selected device clear GET group execute trigger SPD serial poll disable GTL go to local S
61. e of patterns composing the Trigger Specification and the action to be performed once the sequence has been satisfied see Figure 4 3 National Instruments Corp 4 9 GPIB 410 User Manual Software Reference Chapter 4 Figure 4 3 Trigger Specification Screen When accessing this screen no input fields can be selected when the following operational modes are enabled e Trigger e Monitor Input Up to nine patterns can be specified in the pattern sequence Use function keys lt F8 gt lt F9 gt and lt F10 gt to insert append and delete patterns respectively Deleted patterns are pushed back on a stack of unused patterns used by the insert and append functions thus making it easy to re arrange patterns in the sequence To arm the Trigger type lt Alt T gt When triggering is enabled TRG is displayed in the Title Status bar and T is displayed in the DOS shell icon Triggering remains enabled until one of the following conditions occurs GPIB 410 User Manual 4 10 National Instruments Corp Chapter 4 Software Reference e You type lt Alt T gt again e The last pattern in the pattern sequence is matched If the entire pattern sequence is satisfied before triggering is disabled the selected trigger action is taken While the GPIB 410 waits for a particular pattern to occur the pattern label is highlighted Keep the following points in mind when defining the Trigger Spec e The GPIB 410 hardware can detect only one
62. e or hardware configuration and use this form as a reference for your current configuration Completing this form accurately before contacting National Instruments for technical support helps our applications engineers answer your questions National Instruments Products e GPIB 410 Software Revision Number on Disk Disk Label Distribution Diskette for GPIB 410 GPIB Monitor Analyzer Software e Interrupt Level of GPIB 410 e DMA Channel of GPIB 410 e Base I O Address of GPIB 410 Other Products e Computer Make and Model e Other Boards in System e Base I O Address of Other Boards e DMA Channel of Other Boards e Interrupt Level of Other Boards Documentation Comment Form National Instruments encourages you to comment on the documentation supplied with our products This information helps us provide quality products to meet your needs Title GPIB 410 User Manual Edition Date March 1994 Part Number 320053 01 Please comment on the completeness clarity and organization of the manual continues If you find errors in the manual please record the page numbers and describe the errors Thank you for your help Name Title Company Address Phone Mail to Technical Publications National Instruments Corporation 6504 Bridge Point Parkway MS 53 02 Austin TX 78730 5039 Fax to
63. eceeeeeeeeeeneeee G 3 Abbreviated FMT410 Output Listing oe G 5 Tables DMA Channels for the GPIB 410 Rev B 2 or Higher C 5 DMA Channels for the GPIB 410 Rev C ee eeeeeeeeee C 13 R n Time Flags eksisin essesi Sic doses cases isi G 4 National Instruments Corp ix GPIB 410 User Manual About This Manual This manual contains the information you need to configure and install the GPIB 410 It also contains a brief tutorial to get you started and a few examples to show how the GPIB 410 operates This manual is applicable to e Revision C of the GPIB 410 software e Revision B 2 or higher and Revision C of the GPIB 410 hardware Refer to Appendix H for a description of the differences between software revisions Refer to Appendix C for a description of the differences between hardware Revision B 2 or higher and Revision C Organization of This Manual This manual is organized as follows e Chapter 1 Introduction contains a list of the kit contents and optional equipment and the steps for unpacking your GPIB 410 interface board It also contains general information about the GPIB 410 and lists the specifications of the hardware and software e Chapter 2 Hardware and Software Installation contains the steps for installing your hardware and software e Chapter 3 Software Overview contains general information about the GPIB 410 software including an introduction to the two windows of operation monitor and analyzer
64. ecify the action to be taken once the trigger pattern sequence has been satisfied There are three options TRIGG CI R with position GO TO label STOP and sound speaker Each of the above options is described in the following paragraphs TRIGGER WITH POSITION T This option causes the GPIB 410 to trigger a capture operation Use the adjacent sub field to specify the relative position of the trigger point T among the captured data Any one of five positions can be selected TRIGGER with position T If the T is placed in the left most position capturing does not begin until the Trigger Spec is satisfied Placing the T in any other position causes background capturing to begin as soon as the trigger is armed In either case when the trigger occurs the next capture entry is marked as the trigger point and any previous entries in the buffer are realigned so as to position the trigger point as requested Foreground capturing then proceeds according to the options selected on the Capture Settings screen GO TO label This option causes the GPIB 410 to repeat the pattern sequence from the pattern specified by abel each time the end of the sequence is reached This looping action continues until you disarm the trigger by typing lt Alt T gt Any visible pattern label from 1 to 9 can be selected as the loop target This option is useful when you wish to repeat indefinitely a pattern sequence producing one or more pu
65. el of the computer 4 Select an open expansion slot the GPIB 410 requires one full length slot Note The GPIB 410 cannot be installed in slot J8 of the IBM Personal Computer XT if DMA is used 5 Locate the metal bracket that covers the cut out in the back panel of the PC chassis for the slot that you have selected Using a screwdriver remove and save the bracket retaining screw Remove the bracket 6 Insert the GPIB 410 in an unused slot The GPIB 410 comes with a plastic card guide Install the card guide if one is not already installed for the slot that will hold the GPIB 410 Line up the GPIB 410 with the IEEE 488 connector near the cut out on the back panel Lower the end with the bracket and the IEEE 488 GPIB 410 User Manual 2 2 National Instruments Corp Chapter 2 Hardware and Software Installation connector until the IEEE 488 connector is sticking out of the cut out Slowly push down on the front of the GPIB 410 until the card is level again Lower the card until its edge connector is resting on the expansion slot receptacle Using an evenly distributed pressure press the GPIB 410 straight down until it seats in the expansion slot 7 Re install the bracket retaining screw to secure the GPIB 410 to the back panel rail 8 If you wish to install the BNC I O panel and cables for BNC trigger output and BNC external clock input you must locate another open expansion slot for the panel This panel does not require
66. ents of the eight control lines in binary format The lower portion of each section contains corresponding user input fields which are selectable using the left and right cursor control keys The binary indicators and fields are displayed graphically as simulated LEDs and toggle switches as shown below E LED on F Switch on LED off g Switch off Each LED indicates whether the corresponding signal is asserted or unasserted on the bus Each switch indicates whether the corresponding signal is asserted or unasserted by the GPIB 410 You can change the settings of the switches only when Monitor Input mode is active indicated by MON in the Title Status bar Press lt Alt M gt to enable or disable Monitor Input mode Lines that you assert by setting the corresponding switches to ON remain asserted in between separate invocations of Monitor Input mode unless they are changed during operation of the Pattern Generator Note Monitor input is temporarily disabled when the Pattern Generator is running and during access to the Help utility When any field of the Monitor window is active pressing function key lt F10 gt performs one cycle of the acceptor handshake in response to the assertion of DAV Before using this function you must initialize the handshake by pressing lt F10 gt this asserts NDAC and puts the GPIB 410 in the Acceptor Ready State ACRS After that each time you press lt F10 gt in response to DAV the GPIB 410
67. er Manual Multiline Interface Messages Appendix B Multiline Interface Messages Hex Oct Dec ASCII Msg Hex Oct Dec ASCII Msg 00 000 0 NUL 20 040 32 SP MLAO 01 001 1 SOH GTL 21 041 33 MLA1 02 002 2 STX 22 042 34 7 MLA2 03 003 3 ETX 23 043 35 MLA3 04 004 4 EOT SDC 24 044 36 MLA4 05 005 5 ENQ PPC 25 045 37 MLAS 06 006 6 ACK 26 046 38 amp MLA6 07 007 7 BEL 27 047 39 i MLA7 08 010 8 BS GET 28 050 40 MLA8 09 011 9 HT TCT 29 051 41 MLA9 OA 012 10 LF 2A 052 42 t MLA10 0B 013 11 VT 2B 053 43 MLAI1 0C 014 12 FF 2C 054 44 MLA12 OD 015 13 CR 2D 055 45 MLA13 OE 016 14 SO 2E 056 46 MLA14 OF 017 15 S 2F 057 47 MLAI5 10 020 16 DLE 30 060 48 0 MLA16 11 021 17 DCI LLO 31 061 49 1 MLA17 12 022 18 DC2 32 062 50 2 MLA18 13 023 19 DC3 33 063 51 3 MLA19 14 024 20 DC4 DCL 34 064 52 4 MLA20 15 025 21 NAK PPU 35 065 53 5 MLA21 16 026 22 SYN 36 066 54 6 MLA22 17 027 23 ETB 37 067 55 7 MLA23 18 030 24 CAN SPE 38 070 56 8 MLA24 19 031 25 EM SPD 39 071 57 9 MLA25 1A 032 26 SUB 3A 072 58 MLA26 1B 033 27 ESC 3B 073 59 MLA27 1C 034 28 FS 3C 074 60 lt MLA28 ID 035 29 GS 3D 075 6l MLA29 1E 036 30 RS 3E 076 62 gt MLA30 1F 037 31 US 3F 077 63 UNL Message Definitions DCL Device Clear MSA My Secondary Address GET Group Execute Trigger MTA My Talk Address GTL Go To Local PPC Parallel Poll Configure LLO Local Lockout PPD Parallel Poll Disable MLA My Listen Address GPIB 410 User Manual B 2 National Instruments
68. er wait for on the bus The ordering of the signal lines in the pattern is identical to that shown in the Monitor window Construct the trigger pattern by pressing the indicated letter keys to select a 0 1 or x don t care condition for each signal line As indicated on the screen the topmost row of letters on the keyboard manipulates the data portion of the pattern and the next row of letters manipulates the control portion Use the Insert key lt Ins gt to place a single 8 bit ASCII or 2 digit hexadecimal value directly into the data portion of the pattern Pattern Repetition Factor Use this field to enter a repetition factor for the associated trigger pattern This value specifies how many distinct times a pattern must occur on the bus before the pattern is considered satisfied Only when a pattern is satisfied will the software move on to the next pattern in the sequence Valid repetition factors range from to 9999 default 1 Pulse Output Port Use this field to specify whether to send a pulse to the TRG output port of the GPIB 410 each time the trigger pattern is matched There are two options PULSE e NO PULSE GPIB 410 User Manual 4 12 National Instruments Corp Chapter 4 Software Reference Selecting PULSE causes a pulse to be sent each time the pattern occurs on the bus The number of pulses output per pattern is equal to the pattern repetition factor Trigger Action Use this field to sp
69. executes one cycle of the acceptor handshake returning to ACRS when DAV becomes unasserted The Monitor Window contains the following fields from left to right Data Line Input Character Data Line Input Hexadecimal e Data and Control Line Input Binary GPIB 410 User Manual 4 2 National Instruments Corp Chapter 4 Software Reference Data Line Input Character Use this field to assert any ASCII character onto the GPIB data lines Each character entered is asserted immediately onto the bus and the Monitor window indicators are adjusted accordingly Only the data lines are affected by this operation no source handshaking is performed Data Line Input Hexadecimal Use this field to assert any one byte hexadecimal value onto the GPIB data lines four bits at a time Each hex digit entered is asserted immediately onto the bus and the Monitor window indicators are adjusted accordingly Only the data lines are affected by this operation no source handshaking is performed Data and Control Line Input Binary Use this field to assert any combination of the sixteen GPIB signal lines Each line is controlled by a simulated toggle switch indicator which can be turned on or off by pressing the indicated key As indicated when this field is selected the topmost row of letters on the keyboard manipulates the eight bus data lines and the next row of letters manipulates the eight bus control lines Use the Insert k
70. ey lt Ins gt to place a single 8 bit ASCII or 2 digit hexadecimal value directly onto the data lines of the bus National Instruments Corp 4 3 GPIB 410 User Manual Software Reference Chapter 4 The Capture Settings Screen This screen shows the controlling parameters in effect during a capture operation see Figure 4 2 Figure 4 2 Capture Settings Screen When accessing this screen no input fields can be selected when the following operational modes are enabled e Capture e Trigger with background capture e Monitor Input To start a capture operation type lt Alt C gt When capturing is enabled CAP is displayed in the Title Status bar and C is displayed in the DOS shell icon GPIB 410 User Manual 4 4 National Instruments Corp Chapter 4 Software Reference Capturing remains enabled until one of the following conditions occurs e You type lt Alt C gt again e The capture buffer fills up and the software is configured to stop capturing on this occurrence e An excessive number of status entries are lost or missed by the GPIB 410 hardware due to a sustained high speed sampling rate After capturing terminates use the Capture Display screen to view and analyze the contents of the capture buffer To save the contents of the capture buffer to a file on disk use the Capture Write function lt Alt W gt To reload the contents of a previously saved file back into the capture buffer use the Capture Load function l
71. f capturing and the amount of data you wish to capture Capturing involves sampling the GPIB at specified time intervals or on National Instruments Corp 3 5 GPIB 410 User Manual Overview Chapter 3 the occurrence of specified events and saving the status of the signal lines at that moment in time Captured status information in memory can be viewed using the Capture Display screen Appendix G contains information on saving and viewing capture information on disk Trigger Specification Screen lt F4 gt selects the Trigger Specification screen Use this screen to specify a pattern or series of patterns that you wish to detect on the GPIB and the action you wish to take once the pattern or series has occurred Capture Display Screen lt F5 gt selects the Capture Display screen Use this screen to monitor a capture operation while it is still in progress or to review and analyze the contents of the capture buffer after the capture has terminated Pattern Generator Screen lt F6 gt selects the Pattern Generator screen Use this screen to specify a sequence of patterns that you wish to output to the GPIB at high speed These patterns can be specified either interactively on the screen or in a previously prepared command file on disk Appendixes E and F contain additional information on using the Pattern Generator Configuration Settings Screen lt F7 gt selects the Configuration Settings screen Use this screen to change inst
72. figured for programmed I O PIO if no DMA channel is available Configuration jumpers should remain as they are configured by the factory if PIO is selected Each DMA channel consists of two signal lines as shown in Table C 2 Table C 2 DMA Channels for the GPIB 410 Rev C Signal Lines DMA DMA DMA Channel Acknowledge Request Two jumpers must be installed to select a DMA channel The DMA Acknowledge DACK and DMA Request DREQ lines selected must have the same number suffix for proper operation Pins C1 through C3 select the DMA channel used when capturing data with the GPIB 410 Pins S1 through S3 select the DMA channel used when the GPIB 410 is sourcing data pattern generator If your system has two DMA channels available for use for example channels 1 and 3 you can assign the capture and source circuitry to National Instruments Corp C 13 GPIB 410 User Manual Hardware and Software Configuration Appendix C separate channels for simultaneous DMA operation of both However if your system has only one available channel both jumpers must be set to that channel for DMA operation of capturing or sourcing but not both at the same time Figure C 9 shows DMA channel selected for both capturing and sourcing that is input and output Notice that with this configuration DMA may not be used by the capture circuitry and pattern generator at the same time This is the factory default configuration Figure C 10 shows D
73. for scrolling through the buffer are initially positioned at the trigger event For more information on the Capture Display screen refer to Chapter 4 At this point you may wish to experiment by increasing the size of the capture buffer so that more samples are retained either side of the trigger point and then running through the lt Alt T gt lt Alt G gt sequence again If you make the buffer large enough for example 1 000 entries you can capture the entire sequence of patterns output by the Pattern Generator Notice however that if the capture buffer is larger than the total number of patterns generated the buffer will never fill up and you will have to manually halt the capture at the end of the pattern generation sequence to view the captured patterns To do this type lt Alt C gt This concludes the tutorial examples Press lt F2 gt to return to the Main Menu screen or press lt Esc gt twice to exit the GPIB410 program National Instruments Corp A 13 GPIB 410 User Manual Appendix B Multiline Interface Messages This appendix contains an interface message reference list which describes the mnemonics and messages that correspond to the interface functions These multiline interface messages are sent and received with ATN TRUE For more information on these messages refer to the IEEE 488 Std 488 1978 IEEE Standard Digital Interface for Programmable Instrumentation National Instruments Corp B 1 GPIB 410 Us
74. general information about the GPIB 410 software including an introduction to the two windows of operation monitor and analyzer There is also an overview of the menu screens and operation modes and the input conventions used throughout the software To become familiar with the windows and menus of the GPIB 410 software start the GPIB 410 program by entering the following command gpib410 lt Enter gt The Monitor Analyzer Main Menu screen is the first screen to appear Notice that the screen is divided into two windows the monitor and the analyzer An example of this screen is shown in Figure 3 1 Figure 3 1 Monitor Analyzer Main Menu Screen National Instruments Corp 3 1 GPIB 410 User Manual Overview Chapter 3 The monitor window shown in Figure 3 2 occupies the top quarter of the Monitor Analyzer screen and is visible at all times The analyzer window shown in Figure 3 3 occupies the bottom three quarters of the screen The contents of the analyzer window vary depending on the menu screen selected The two windows operate independently of one another CHR HEX gd Figure 3 2 Monitor Window Hil rul c bhpnueals CRPR eb PD rice Seats aa Figure 3 3 Analyzer Window GPIB 410 User Manual 3 2 National Instruments Corp Chapter 3 Overview The Monitor Window The monitor window graphically displays the current state of the GPIB through simulated LED indicators Each LED has a corresponding toggle swi
75. he commands in GPIB410 PAT are straightforward and commented For a complete description of the IBPGL command set and syntax refer to Appendix E Notice in the listing that the set and handshake commands are used to simulate addressing and data transfer activity between the GPIB 410 and three imaginary devices For the purposes of this example the GPIB 410 will be playing the role of all GPIB Listeners as well as the GPIB Talker 2 Press lt F4 gt to select the Trigger Specification screen This screen defines up to nine sequential patterns collectively referred to as the Trigger Spec which the GPIB 410 should wait for before performing the indicated action at the bottom of the screen Only one pattern is required in the Trigger Spec for this example In constructing a trigger pattern you must specify a 0 1 or x for don t care condition for each signal line This is done by pressing the letter key indicated above the line you wish to set until the appropriate selection appears GPIB 410 User Manual A 8 National Instruments Corp Appendix A Tutorial Notice that q through on the Trigger Spec correspond to the data lines amp through in the Monitor window Similarly the characters a through g correspond to EOI ATN SRQ REN and IFC respectively and h through k correspond to the three handshake lines NRFD NDAC and DAV As discussed in Chapter 3 under General Input Conventions lt Ins gt can also be used for setting
76. is active e Monitor Input Mode is enabled look for MON in the title status bar meaning user input is currently directed into the upper window of the screen To redirect input into the lower window once again press lt Alt M gt or the function key associated with the primary screen currently displayed in the analyzer window e The contrast on your display is set too low Adjust the contrast until the highlighted cursor appears Problem There is no indication that the final trigger pattern was matched there was no beep and the TRG indicator in the title status bar is still present even though the required pattern has already appeared a sufficient number of times on the bus Possible Cause e The GPIB 410 software does not acknowledge the occurrence of the final pattern in a trigger sequence involving a capture until the next capture of an enabled GPIB event occurs Thus if the final trigger pattern does not correspond to any of the enabled GPIB events on the Capture Settings screen and no events are captured following the final occurrence of this pattern completion of the trigger sequence may never be indicated to the user e The value contained in the Interrupt Jumper Setting field on the Configuration Settings screen does not match the actual jumper setting on the interface board Check the hardware configuration and enter the proper value GPIB 410 User Manual D 2 National Instruments Corp Appendix D Common Problems
77. ision B Note Capture and configuration file formats are compatible across all revisions of the software Important Differences Users already familiar with Revision A and Revision B will find that the original screens and functions operate in the same manner as before with the following important exceptions e The Immediate Write function lt Alt W gt which was formerly included in the list of functions on the Main Menu screen in Revision A is a local function on the Capture Settings screen in Revision B and Revision C e In Revision B and Revision C both the Immediate Write function and the Auto write function overwrite previous information in the selected capture file whenever a new write operation is initiated This approach differs from that of Revision A wherein existing capture files were appended to with each new write operation e In Revision A and Revision B Monitor Input mode can be exited by pressing the function key of any analyzer screen In Revision C Monitor Input mode can be exited only by pressing lt Alt M gt lt Esc gt or the function key of the currently displayed analyzer screen National Instruments Corp H 1 GPIB 410 User Manual Differences Between Software Appendix H Feature Highlights Some of the new functions included in the Revision B release are as follows e Pattern Generator a convenient low level utility for placing a sequence of 16 bit patterns onto the GPIB at high speeds
78. lace software media that do not execute programming instructions if National Instruments receives notice of such defects during the warranty period National Instruments does not warrant that the operation of the software shall be uninterrupted or error free A Return Material Authorization RMA number must be obtained from the factory and clearly marked on the outside of the package before any equipment will be accepted for warranty work National Instruments will pay the shipping costs of returning to the owner parts which are covered by warranty National Instruments believes that the information in this manual is accurate The document has been carefully reviewed for technical accuracy In the event that technical or typographical errors exist National Instruments reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition The reader should consult National Instruments if errors are suspected In no event shall National Instruments be liable for any damages arising out of or related to this document or the information contained in it EXCEPT AS SPECIFIED HEREIN NATIONAL INSTRUMENTS MAKES NO WARRANTIES EXPRESS OR IMPLIED AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE CUSTOMER S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTO
79. lections insesti sree C 16 Software Configuration e eeesesseeresseeereseseesrersreersrssrererrererenrsse C 18 Appendix D Common Problems 0 00 0 00 c ccccccscssesessesscsssscsssscseecesssessesecssseeee D 1 Appendix E Using the Pattern Generator 0 0 0 0ccccccccccccecseseeeeeeeeseenes E 1 The Command File Method eee eee cee cee ceeceeeeeesseeseeeeees E 1 IBPGL Command Descriptions 1 0 0 0 eeeeeeeee E 2 IBPGL Tips and Techniques 0 eee eseeseeeeeeeeeee E 6 National Instruments Corp vil GPIB 410 User Manual Contents The Input Window Method 0 ee eeeceeceeeeeesecenceeeeeceecenseeeeeeenees E 7 Appendix F GPIB410 PAT Source Listing 20 00 0000 lccccceseseeseeseeseeees F 1 Appendix G Saving and Viewing Capture Information on Disk G 1 Appendix H Differences between Software Revisions 0 0 0 H 1 Important DifferenceSa ieies a a AENA H 1 Feature Highlights i ian er a EELEE EEEREN H 2 Appendix I Customer Communication 505111 sss 111 rsrsr irissen Ll 1 00 2 lt p Re E A AR Index 1 Figures Figure 1 1 GPIB 410 Interface Board eee eeeeseeeeeeneeeneeee 1 1 Figure 2 2 BNC I O Panel and Cables Connected to the GPIB 410 Interface Board Installed in an IBM Compatible COMPILED perne ied cus E E E E neta EEES 2 4 Figure 3 1 Monitor Analyzer Main Menu Screen cece 3 1 Figure 3 2 Monitor Window sssssesesseseseeseeersrreresesreresreserr
80. lses on the TRG output port of the GPIB 410 National Instruments Corp 4 13 GPIB 410 User Manual Software Reference Chapter 4 e STOP AND SOUND SPEAKER This option causes the GPIB 410 to beep when the pattern sequence is satisfied The Capture Display Screen This screen shows the current contents of the capture buffer defined on the Capture Settings screen see Figure 4 4 Figure 4 4 Capture Display Screen Input to this screen is disabled when the capture buffer is empty Input to this screen is also disabled when the following operational modes are enabled e Capture GPIB 410 User Manual 4 14 National Instruments Corp Chapter 4 Software Reference e Trigger with background capture e Monitor Input Display Window Layout Up to sixteen buffer entries one per line can be viewed in the display window at one time When capturing is complete two cursors are provided for scrolling through the buffer and examining the individual entries Entries generally can be described as falling into one of the following three categories The fields columns and indicators of the display window are described in the following paragraphs e co This column displays two numeric flags 1 and 2 that label and distinguish the positional cursors A blinking flag indicates the currently active cursor this cursor is always visible within the display window To activate the inactive cursor use function key l
81. ly displayed primary screen also deactivates this mode This mode is temporarily disabled when the Pattern Generator is enabled National Instruments Corp 3 9 GPIB 410 User Manual Overview Chapter 3 lt Alt A gt Acceptor Handshaker Use this mode when you want the GPIB 410 to perform a dummy acceptor handshake automatically whenever the DAV line is asserted The accepted data or command bytes are not saved unless capturing is also enabled use lt Alt C gt When this mode is active ACP is displayed in the Title Status bar and A is displayed in the DOS shell icon lt Alt S gt Source Handshaker Use this mode when you want the GPIB 410 to perform a dummy source handshake automatically whenever the NRFD line is unasserted The handshake is performed regardless of the current state of the other GPIB lines When this mode is active SRC is displayed in the Title Status bar and S is displayed in the DOS shell icon This mode cannot be enabled when the Pattern Generator is enabled lt Alt D gt DOS Shell Use this function to escape to DOS temporarily without terminating the GP1IB410 program All enabled operational modes remain active while the main program is suspended To exit the shell and return control to the GPIB410 program type EXIT at the DOS prompt lt Alt I gt DOS Shell Icon Use this function to escape to DOS temporarily without terminating the GP1IB410 program During operation of the shell a GPIB 410 icon is
82. mber You must use the same DOS version of COMMAND COM that you used when you first started the system National Instruments Corp D 3 GPIB 410 User Manual Common Problems Appendix D e There is insufficient memory available to load COMMAND COM Try reducing the size of the capture buffer defined on the Capture Settings screen and try again GPIB 410 User Manual D 4 National Instruments Corp Appendix E Using the Pattern Generator This appendix describes the Interface Bus Pattern Generating Language IBPGL and syntax conventions for data command strings Using the Pattern Generator is an alternative means of manipulating the switches of the GPIB 410 Monitor window It is faster and more accurate than toggling the switches by hand and the patterns created can be repeated many times There are two methods for specifying output patterns The first and most flexible method is to use a text editor to create a file of commands that describes a sequence of actions to be performed on the GPIB These actions are then translated into a stream of patterns by the GPIB 410 and output to the bus The second method though more limited can be used while the GPIB 410 software is running Using the interactive input window on the Pattern Generator screen you can enter a string of data or command bytes that can then be output to the bus using the source handshake protocol The Command File Method Pattern command files are created using
83. med commands can be abbreviated to as few as one letter if desired that is S H I and P The maximum active line length is 79 characters and comments can be included on any line by preceding them with a semicolon HANDSHAKE commands containing lengthy text strings that cannot fit on one line can be broken down into several shorter HANDSHAKE commands yielding the same results For example the sequence of commands handshake abcd handshake 1234 handshake efgh is equivalent to the single command handshake abcd1234efgh Unlike the above two sequences of commands some sequences that may appear to be identical actually yield slightly different results For example consider the following two commands 20 handshake a handshake aaaaaaaaaaaaaaaaaaaa Though each command will result in the letter a being output to the bus 20 times the second command produces faster output than the first This is especially true if the Pattern Generator is using DMA The GPIB 410 User Manual E 6 National Instruments Corp Appendix E Using the Pattern Generator reason for this is that repetition factors do not insert extra patterns into the pattern buffer but merely instruct the GPIB 410 to output a fixed portion of the buffer more than once This fact should also be kept in mind when a repetition factor is applied to a block of commands The Input Window Method Using the interactive input window is a quick and easy means of
84. moment that the Trigger Spec is satisfied so that the capture operation can be adjusted accordingly more on this in step 3 GPIB 410 User Manual A 10 National Instruments Corp Appendix A Tutorial 3 Press lt F2 gt to return to the Main Menu screen Press lt Alt T gt to enable the Trigger Mechanism The TRG indicator appears in the title status bar and your screen looks like Figure A 7 Figure A 7 Main Menu Screen with Trigger Enabled The trigger is now armed and waiting for the trigger pattern to occur During this time background capturing is also running and ready to store pre trigger capture samples into memory If the capture buffer fills up before the trigger occurs the GPIB 410 automatically loops around and reuses the buffer When the trigger pattern is detected on the bus the GPIB 410 marks the next capture sample as the trigger point and realigns any existing entries in the buffer so as to position the trigger point as requested 4 When you enable the Pattern Generator you will observe several things occurring within a short period of time First the GEN indicator appears in the title status bar to indicate that the Pattern Generator is enabled This occurrence is quickly followed by the appearance of a National Instruments Corp A 1 GPIB 410 User Manual Tutorial Appendix A LOADING message in the help error bar at the bottom of the screen during which time the software parses the GPIB410 PAT file and
85. n change any of these settings but for now leave them as they are The relevant settings are summarized as follows e The GPIB 410 is set to capture any of the seven GPIB events listed on the screen including data and command transfers xfers and ATN transitions National Instruments Corp A 3 GPIB 410 User Manual Tutorial Appendix A e The GPIB 410 is set to participate in the handshake during capture e The next capture operation will stop when the capture buffer is full and the buffer will not be automatically written to the disk 3 Press lt F2 gt to return to the Main Menu Enable the capturing by pressing lt Alt C gt CAP appears on the right side of the title status bar NDAC also becomes asserted on the GPIB 410 monitor because the GPIB 410 is participating in the GPIB handshake as a Listener Switch to Monitor Input Mode by pressing lt Alt M gt MON appears beside CAP in the title status bar The menu screen appears as follows Figure A 3 Main Menu Screen with Monitor Input and Capturing Enabled The GPIB 410 is now waiting for any of the selected GPIB events to occur so that samples can be taken GPIB 410 User Manual A 4 National Instruments Corp Appendix A Tutorial 4 Control the GPIB by manipulating the monitor to simulate bus activity Initially set up the data lines to the pattern 01011111 by pressing the keys lt w gt lt r gt lt t gt lt y gt lt u gt and lt i gt This data pattern
86. n most cases however no flags are necessary and only a filename must be specified To format any capture file enter the following command fmt410 filename lt Enter gt The expression filename can be any valid DOS pathname including an optional drive specification of 47 characters or less To format the default capture file GPIB410 CAP enter the following command fmt 410 lt Enter gt The FMT410 utility directs its output to the computer display by default Output can be redirected to a file or printer by using the DOS redirection operator gt Listed below are a few examples Example 1 fmt410 mydata cap gt mydata fmt Example 2 fmt410 mydata cap gt lptl Example 3 fmt410 gt prn GPIB 410 User Manual G 2 National Instruments Corp Appendix G Saving and Viewing Capture Information on Disk To accomodate a wide variety of printers only standard ASCII characters are used in FMT410 output For each capture table information is displayed from the associated header followed by the table of saved status entries The format of the entries table is similar to that of the Capture Display screen see Figure G 1 Figure G 1 FMT410 Output Listing National Instruments Corp G 3 GPIB 410 User Manual Saving and Viewing Capture Information on Disk Appendix G Unlike the file in the previous example some capture files may contain thousands of status entries As FMT410 translates each 2 byte entry into a 60 to 80 byte line of ASCI
87. new address e The GPIB 410 uses DMA channel on your PC for high speed data transfers If another board is already using DMA channel 1 refer to Appendix C to change the GPIB 410 DMA channel and to match the software configuration to the new channel e The GPIB 410 uses Interrupt Line 7 of the PC I O channel If another board is already using Interrupt Line 7 refer to Appendix C National Instruments Corp 2 1 GPIB 410 User Manual Hardware and Software Installation Chapter 2 to change the GPIB 410 Interrupt Line and to match the software configuration to the new interrupt selection If the GPIB 410 factory configurations do not conflict with other boards in your system you are ready to proceed with the installation Step 2 Install the Hardware The GPIB 410 package includes a BNC I O panel with two input output cables You use the BNC I O panel and cables if you want to sample the GPIB using an external clock signal or if you want the pulse output signals generated by the trigger mechanism to be sent to an external device Use the following steps to install the GPIB 410 Omit steps 8 through 11 if you do not plan to use the BNC I O panel and cables Consult the user or technical reference manual of your personal computer for specific instructions and warnings 1 Turn off your computer and unplug the power cord 2 Remove the top cover or access port to the I O channel 3 Remove the expansion slot cover on the back pan
88. nnels INT NO tTN OD INT NO TN OD Figure C 13 IRQ Lines 6 and 2 Selected Rev C In the space provided here record the new settings of the base I O address the DMA channel and the IRQ line so that you will have them handy when you install the software GPIB 410 New Setting Base I O Address DMA Channel Interrupt Request Line National Instruments Corp C 17 GPIB 410 User Manual Hardware and Software Configuration Appendix C Software Configuration If you change the hardware settings of the GPIB 410 you must match the software settings to the new hardware settings If you have not already done so start up the GPIB410 program by entering the following command gpib410 lt Enter gt Press lt F7 gt to access the Configuration Settings screen see Figure C 14 Figure C 14 Configuration Settings Screen Scroll through the fields on this screen using the up or down arrow keys The field you select becomes highlighted Instructions for changing this field appear in the help error bar GPIB 410 User Manual C 18 National Instruments Corp Appendix C Hardware and Software Configuration When you exit the GPIB410 program be sure to save the new settings in the default configuration file GPIB410 CFG For more information on the Configuration Settings screen and the fields it contains refer to Chapter 4 Software Reference National Instruments Corp C 19 GPIB 410 User Manual A
89. o or more key names enclosed in angle brackets denotes that you should simultaneously press the named keys for example lt Ctrl Alt Del gt lt Ctrl gt Key names are capitalized National Instruments Corp xiii GPIB 410 User Manual About This Manual Abbreviations The following are the abbreviations for units of measure used in this manual Acronyms ampere Celsius degree hertz hexadecimal inch kilobytes kilohertz megahertz nanosecond percent volt The following acronyms are used in this manual ANSI ASCII BNC DMA FIFO GPIB TEEE 488 VO IRQ LED PIO RAM ROM American National Standards Institute American Standard Code for Information Interchange referring to a coaxial connector direct memory access first in first out referring to a memory buffer General Purpose Interface IEEE 488 Bus Institute of Electrical and Electronic Engineers Standard 488 1978 which defines the GPIB input output interrupt request line light emitting diode programmed I O random access memory read only memory GPIB 410 User Manual xiv National Instruments Corp About This Manual Related Document The following document contains information that you may find helpful as you read this manual ANSI TEEE Std 488 1978 IEEE Standard Digital Interface for Programmable Instrumentation Customer Communication We appreciate communicating with the people who use our products We are also very interested
90. onics DCL 0x14 PPC 0x05 SPE 0x18 GET 0x08 PPU 0x15 TCT 0x09 GTL 0x01 SDC 0x04 UNL 0x3F LLO 0x11 SPD 0x19 UNT Ox5F NUL 0x00 Insert an ASCII into the Input Window Insert an ASCII into the Input Window Note The last two escapes are necessary because the lt gt and lt gt keys are used to select the options of the Pattern Buffer Source field which is the INPUT WINDOW parent field For more information refer to Appendix E GPIB 410 User Manual 4 24 National Instruments Corp Chapter 4 Software Reference The Configuration Settings Screen This screen shows the general installation and performance related parameters of the GPIB 410 see Figure 4 7 Figure 4 7 Configuration Settings Screen When accessing this screen no input fields can be selected when the following operational modes are enabled e Capture e Monitor Input e Trigger e ACP Handshaker e Generate e SRC Handshaker Notice that some of the parameters shown on this screen must match corresponding settings on the GPIB 410 hardware If you change any of the default hardware settings remember to change the software settings as well National Instruments Corp 4 25 GPIB 410 User Manual Software Reference Chapter 4 The Configuration Settings screen contains the following fields e Computer display mode Interrupt jumper setting e Computer keyboard mode Status refresh rate e Computer speaker mod e Acce
91. orresponding address bit Figure C 2 shows the default configuration 300 hex Key HF Side you must press down Base Base I O Address Hexadecimal User Selectable N wl aw ujo oo Figure C 2 Base I O Address 300 Hex Rev B 2 or Higher To change the base I O address remove the plastic cover on U49 press each switch to the desired position check each switch to make sure it is pressed all the way and replace the plastic cover GPIB 410 User Manual C 4 National Instruments Corp Appendix C Hardware and Software Configuration DMA Channel Configuration The DMA channel used by the GPIB 410 is selected by jumpers on two rows of pins located near the I O slot edge connector on the GPIB 410 W1 and W2 in Figure C 1 The GPIB 410 is set to use DMA channel 1 Note Check that this DMA channel is not used by equipment already installed in the PC If a peripheral uses DMA channel 1 you must change the DMA channel used by the GPIB 410 DMA channel 2 is used by the floppy disk Controller in the IBM Personal Computer and the IBM Personal Computer XT DMA channel 3 is used by the fixed disk Controller in the IBM Personal Computer XT The software can be configured for programmed I O PIO if no DMA channel is available Configuration jumpers should remain as they are configured by the factory if PIO is selected Each DMA channel consists of two signal lines as shown in Table C 1 Table C 1 DMA Channels for the GPIB 410
92. ove flags GPIB 410 User Manual G 4 National Instruments Corp Appendix G Saving and Viewing Capture Information on Disk Flags can be specified in any order This is also true of the options that follow them If two or more flags are specified that are redundant or conflicting the flag specified last takes precedence There must not be any spaces between a flag and its option s The following examples are possible flag combinations These examples assume that the file GPIB410 CAP exists and contains the information shown in the complete table in Figure G 1 If you enter the following command the output looks like the listing shown in Figure G 2 fmt410 i5 fpb lt Enter gt Figure G 2 Abbreviated FMT410 Output Listing National Instruments Corp G 5 GPIB 410 User Manual Saving and Viewing Capture Information on Disk Appendix G If you enter the following command fmt410 xdc lt Enter gt the output appears as follows s DEV3 me GPIB 410 User Manual G 6 National Instruments Corp Appendix H Differences between Software Revisions This appendix describes the differences between the major software revisions The Revision B release of the GPIB 410 software was a functional superset of the Revision A release In addition to enhanced functionality in several areas of operation minor improvements to the user interface were also made Likewise the Revision C release builds upon the functionality of Rev
93. ppendix D Common Problems This appendix contains possible causes for common problems encountered when operating the GPIB 410 Problem The capture operation does not terminate even though enough capture events have occurred to fill up the capture buffer Possible Cause e The Action when buffer full field on the Capture Settings screen is set to reset and continue Change this value to stop capture e The value contained in the Interrupt Jumper Setting field on the Configuration Settings screen does not match the actual jumper setting on the interface board Check the hardware configuration and enter the proper value Problem There are no highlighted cursors present on the Capture Display screen Possible Cause e The capture buffer is empty There must be data displayed on the screen and capturing must be OFF for the cursors to be visible e The contrast on your display is set too low Adjust the contrast until the highlighted cursors appear National Instruments Corp D 1 GPIB 410 User Manual Common Problems Appendix D Problem None of the input fields on the Capture Trigger Pattern Generator or Configuration Settings screens are highlighted no cursor present Possible Cause e One or more operational modes are enabled which depend on information contained in these screens look for the appropriate indicator in the title status bar You are not able to make changes to these screens while one of these modes
94. ptor handshake rate e Base I O address e Source handshake rate e Input DMA channel e Help file name e Output DMA channel Computer Display Mode Use this field to specify the most appropriate output mode for your computer display hardware There are six options e Monochrome ROM BIOS e Monochrome Synchronized Direct e Monochrome High Speed Direct Color ROM BIOS Color Synchronized Direct Color High Speed Direct In most cases the software determines the appropriate display mode automatically and sets this field accordingly If for some reason the default selection is unsatisfactory use the information in the following paragraphs to make an alternate selection Any of the Monochrome options should work satisfactorily on most monitors both monochrome and color You can select one of the Color options only if you have a display adapter that supports color output GPIB 410 User Manual 4 26 National Instruments Corp Chapter 4 Software Reference Selecting one of the ROM BIOS options causes all screen output to be directed through the built in video services of the host PC Using ROM BIOS calls is the most well behaved manner of writing information to the computer screen but it is also the slowest You should select one of these options only if you intend to run the GPIB 410 software under one of the windowing software packages available commercially for DOS applications Note The GPIB 410 software ha
95. r driver program Default configuration file for driver program 2 4 National Instruments Corp Chapter 2 Hardware and Software Installation e GPIB410 CAP Default capture file for saved capture buffer e GPIB410 PAT Example pattern command file e FMT410 EXE Capture file format utility e DIAG410 EXE Hardware diagnostic utility Before using the GPIB 410 software copy all files on the distribution diskette to a backup diskette or to a suitable directory on your computer s hard disk Put the original distribution diskette away in a safe place Use the files on the backup diskette or in the hard disk directory to run the GPIB 410 software Step 4 Run the Hardware Diagnostics Run the hardware diagnostics by entering the following command diag410 lt Enter gt Carefully follow the instructions on the screen If you changed any of the hardware configuration settings when you installed the interface board refer to the notes you made in Appendix C and enter the new settings when the program prompts you to do so To accept the default selection for any setting just press lt Enter gt The diagnostic tests take several seconds to complete If they complete successfully proceed to Chapter 3 Software Overview Otherwise recheck the configuration and installation of the hardware and run the tests again National Instruments Corp 2 5 GPIB 410 User Manual Chapter 3 Software Overview This chapter contains
96. reenin ie A 3 Main Menu Screen with Monitor Input and Capturing Jehat aI lS a esi ENE EN EEEE E E EE A 4 Capture Display Screen sssssessseeeesseesrsrssesresesreresseereeea A 6 Pattern Generator Screen eseseeeseeseeeeseeierrerereerrreerrersreen A 7 Trigger Specification Screen cece eee cee ceeeeeeeeeeeeeees A 10 Main Menu Screen with Trigger Enabled 0 0 A I1 Captured Data Including Trigger Point 00 ee A 12 GPIB 410 Parts Locator Diagram Rev B 2 or Higher C 2 Base I O Address 300 Hex Rev B 2 or Higher C4 Factory Default DMA Channel 1 Rev B 2 or Higher C 6 DMA Channel Jumper Settings for DMA Channels 2 and 3 Rev B 2 or Higher ee ceeseeceesseeeseceeeeceeeeeneeenen C7 Factory Default IRQ Line 7 Selected Rev B 2 or THI SHEL EE EEEE E E C8 IRQ Lines 6 and 2 Selected Rev B 2 or Higher C8 GPIB 410 Parts Locator Diagram Rev C eceeseeeeen C 10 Base I O Address 300 Hex Rev C cccsccesssecessseesteees C 12 Factory Default DMA Channel 1 Rev C C 14 DMA Channel 1 for Capturing and DMA Channel 3 for Sourcing Rev C ei eri e RA e a C 15 DMA Channel 1 for Capturing and no DMA Channel for Sourcing REV C aerea n EEEE NE ERE C 15 Factory Default IRQ Line 7 Selected Rev C ee C 16 IRQ Lines 6 and 2 Selected Rev C ccecseeesseeesteeeen C 17 Configuration Settings Screen eeeeeseseeseeeeeeeeeeseee C 18 FMT410 Output Listing oes ce
97. represents an ASCII underscore _ Alternatively you can press lt Ins gt once to get the prompt lt lt lt character gt gt gt above the data line switches and then type an underscore Notice that the ASCII underscore is also the GPIB Untalk UNT command If you are unfamiliar with the IEEE 488 command set refer to Appendix B for a complete listing of the multiline interface messages and their ASCII equivalents At this point the monitor window appears as follows EO ATH SRO REN IFC MAFO MDAC DAM tj mial lal Press lt k gt twice for a data transfer handshake This causes the DAV line to toggle up and down one time Next set ATN true by pressing lt s gt The monitor window appears as follows CHA HEX amp i Ol ATH SRO REN IFC MAFO HDAC DAM le lal Toggle the DAV line twice more by pressing lt k gt four times Now set ATN false by pressing lt s gt again Toggle DAV by pressing lt k gt an even number of times until you hear a beep and CAP is no longer displayed in the title status bar This indicates that the capture buffer is full and that the capture is complete At this point the DAV switch should be down and the DAV LED should be off National Instruments Corp A 5 GPIB 410 User Manual Tutorial Appendix A 5 Press lt F5 gt twice to activate the Capture Display screen to view the data that was just captured The screen will look similar to Figure A 4 Figure A 4 Capture Display Screen
98. rom the specified source when you type lt Alt G gt There are two options COMMAND FILE INPUT WINDOW Each of the above options is described in the following paragraphs e COMMAND FILE This option causes the GPIB 410 to use commands in a previously prepared file on disk to construct the patterns in the pattern buffer The commands in the file are written in the National Instruments Interface Bus Pattern Generating Language IBPGL which is described in detail in Appendix E Use the associated sub field to enter the command file pathname INPUT WINDOW This option causes the GPIB 410 to combine the bytes of the input window sub field with the Monitor window switch settings to construct the patterns in the pattern buffer When you enable the Pattern Generator the input window contents are output to the GPIB using the source handshake as either data or commands depending on the state of the Monitor ATN switch You can enter up to 75 characters or other byte values in the input window Use the following escape sequences to specify non ASCII or non printable codes within the string National Instruments Corp 4 23 GPIB 410 User Manual Software Reference n r t n xNN MMM lt Alt P gt lt Alt N gt Chapter 4 ASCII linefeed ASCII carriage return ASCII horizontal tab ASCII double quote ASCII backslash Any two digit hexadecimal number N 0 9 A F Any of the following GPIB mnem
99. rp Index 3 GPIB 410 User Manual Index Configuration Settings Screen continued description of 4 25 to 4 32 disabled in certain situations 4 25 Help File Name field 4 32 illustration of 4 25 Input DMA Channel field 4 28 to 4 29 Interrupt Jumper Setting field 4 30 Output DMA Channel field 4 29 overview 3 6 selecting from Analyzer Window 3 5 Source Handshake Rate field 4 31 to 4 32 Status Refresh Rate field 4 30 customer communication ix I 1 D Data and Control Line Input binary field 4 3 Data Control Specification Trigger Pattern field 4 12 Data Line Input character field 4 3 Data Line Input hexadecimal field 4 3 DATA transfer event 4 6 diagnostics for hardware configuration 2 5 direct input fields numeric fields 3 12 text fields 3 12 display hardware selecting 4 26 to 4 26 display window OVERFLOW entry 4 16 to 4 174 17 lt lt CONTROL gt gt field 4 16 lt lt DATA gt gt field 4 16 C field 4 15 to 4 16 C column 4 15 mnemonic interpretation of data bus lines 4 16 to 4 17 Pg indicator 4 16 up or down arrow indicators 4 16 up or down triangle indicators 4 16 using the display window 4 18 using the search utility 4 19 to 4 20 DMA channel configuration Input DMA Channel field 4 28 to 4 29 Output DMA Channel field 4 29 overview 2 1 GPIB 410 User Manual Index 4 National Instruments Corp Index DMA channel configuration continued Revision B 2 or higher C 1 to
100. rserresrssesn 3 2 Figure 3 3 Analyzer Window ssesesseseessseseeeresesresreerrererrsrsreererreee 3 2 Figure 3 4 GPIB Status Indicators ee eeeeeeeeeeeeeeeeeeeeeeee eee 3 3 Figure 3 5 Format of the Analyzer Window eee eeeeeeeee crete 3 4 Figure 3 6 DOS Shell with GPIB 410 Icon ee eeeeeeeeeeen 3 11 Figure 4 1 Monitor Window at the Top of the Screen 4 1 Figure 4 2 Capture Settings Screen ee ee eeeeeeeereeseeeseeeeeneene 4 4 Figure 4 3 Trigger Specification Screen eee eeeeeeeeeeeeeeeeee 4 10 Figure 4 4 Capture Display Screen oie eee ceeeeeseceeceeeeeeeeeeen 4 14 Figure 4 5 Search Pattern Definition Window eee eee eee eeeees 4 19 Figure 4 6 Pattern Generator Screen oo eee ceeceeceseeeeeeeeeeeesaeenee 4 20 Figure 4 7 Configuration Settings Screen 0 eee ceeeeeeeeeee econ 4 25 Figure 4 8 Program Exit Screen oo cece cece ceeceeceeeeeeeseenaeeseeeeees 4 32 GPIB 410 User Manual vill National Instruments Corp Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Table Table Table A 1 A 2 A 3 A 4 A 5 A 6 A 7 A 8 C 1 C 2 C3 C4 C5 Ce C 8 C9 C 10 C 11 C 12 C 13 C 14 G 1 G 2 C 1 C 2 G 1 Contents M in Sere eD osoare eieae terisi easet rte ote E rE o ESTEE EE Sip A 2 Capture Settings Sc
101. s not been tested nor determined to be fully functional under any particular windowing environment Selecting one of the Direct output options causes most screen output to be written directly to the display memory of the host PC Using one of these techniques results in much faster screen updates and can also improve overall program performance For most display hardware in use today the High Speed Direct options work satisfactorily Some older video adapters such as the IBM Color Graphics Adapter CGA and its compatibles produce an annoying snow like effect on the screen when display memory is written to directly This problem can be reduced or eliminated by synchronizing all screen output with the horizontal and vertical retrace cycles of the CRT Controller hardware If you observe this problem when using one of the High Speed Direct options you should select the corresponding Synchronized Direct option instead Although output using this technique is slightly slower than that of the high speed option it is typically only noticeable on slower machines Computer Keyboard Mode Use this field to specify the keyboard layout of the host PC There are six options U S English e German e U K English Italian e French e Spanish The information in this field determines which set of keys the software uses for all GPIB key select fields for example the Monitor window toggle switches National Instruments Corp 4
102. seeesceeeeeeeeseeeeeeseees 4 4 Capture SUMUL S e in a dieses 4 5 Participate in Handshake ee eeceeeceeeeeeseeeeeeeeeeneeee 4 7 Buffer Setup Maximum Capacity oe eee eee 4 7 Buffer Setup Action When Buffer Full 4 7 Buffer Setup Auto Write Each Pass eee 4 8 File Setup Buffer Range for lt Alt W gt ee 4 8 File Setup Capture File Name eee 4 9 The Trigger Specification Screen cece esesseeseceeceseeeeeeeeen 4 9 Data Control Specification Trigger Pattern 4 12 Pattern Repetition Factor 0 0 ee ceeceesecesseeeneeeeeeeeseeenen 4 12 Pulse Output Port 0 eee cee ceceeeeeeeeeeeeeeeseeeseene 4 12 ERIS SEC ACH OM reire a a EEEE 4 13 The Capture Display Screen eee ceceeeeeeeeeeeeeseeeseeseeaee 4 14 Display Window Layout 00 cece eeeceeeereeseceeeneeees 4 15 Using the Display Window 00 cee eee eeeeseeseeeeeeeeeee 4 18 Using the Search Utility 00 0 eeeeeeceeceeeeeeeen 4 19 The Pattern Generator Screen oo ce ceeceeeeeeceeeseeesecneceeeeeees 4 20 No of Times to Execute eee cceseeeeeseeeeceeeeneeee 4 22 Clear Switches When Done 0 0 0 cece eeeeseeeeeeereeee 4 22 Send EOI with Last Byte oe eee cece eeteeeeee 4 22 Pattern Buffer Source eee ce esses ceseeeeeeeeeeeeeneeen 4 23 The Configuration Settings Screen eee cesses ene cereeeeeeee 4 25 Computer Display Mode 00 eee ee eeeeeeseeeeeeeeeeeenee 4 26 GPIB 410 User Manual vi National Instruments Corp Contents Comp
103. splay Window Use lt Home gt lt End gt lt PgUp gt lt PgDn gt or the up or down cursor control keys to move the currently active cursor up or down in the capture buffer By default the cursor moves independently of the display window dragging the window behind whenever scrolling into the upper or lower window boundary To lock the relative position of the cursor within the window so that the two always move in unison activate the keyboard Scroll Lock feature Use lt Ctrl Home gt lt Ctrl End gt lt Ctrl PgUp gt and lt Ctrl PgDn gt to page through a partially loaded capture file These keys are only active when a loaded capture file exceeds the size of the current capture buffer The default displacement for any move or paging operation is one To override this displacement type in any positive numeric value before pressing the control key For example type 500 and press the up arrow key to move the cursor back 500 entries in the buffer Before the control key is pressed the new displacement appears briefly in the Title Status bar and can be edited just as any other numeric input field see General Input Conventions in Chapter 3 Software Overview To locate entries matching a specific pattern or class of patterns within the buffer use the Set Search Pattern function key lt F10 gt and the left and right cursor control keys Additional information on using the search utility is contained in the following section GP
104. ssible to set the input and output DMA channels to the same value if capturing and generating are never used at the same time National Instruments Corp 4 29 GPIB 410 User Manual Software Reference Chapter 4 Warning Attempting to operate the Pattern Generator with a DMA channel already in use by another device may crash your system or have other unpredictable effects If there is no unused DMA channel available on your computer select programmed I O PIO operation by setting this field to NONE Interrupt Jumper Setting Use this field to specify the interrupt level used by the GPIB 410 interface board There are six options 2 5 e 3 e 6 e 4 e 7 default Any one of the valid levels can be selected if the level is not already in use by another device The value selected must match the interrupt jumper setting on the interface board itself Warning Attempting to operate some functions of the GPIB 410 software with an interrupt level already in use by another device may crash your system or have other unpredictable effects Status Refresh Rate Use this field to specify the maximum frequency at which the Monitor window and DOS icon status indicators are updated There are six options 1 Hz 9 Hz 3 Hz 18 Hz e 6 Hz e MAXIMUM default Selecting one of the five numeric options guarantees that the status indicators are updated at the specified rate regardless of most other activity in the system
105. t Alt L gt The Capture Settings screen contains the following fields e Capture stimulus e Participate in handshake e Buffer Setup Maximum capacity e Buffer Setup Action when buffer full e Buffer Setup Auto write each pass e File Setup Buffer range for lt Alt W gt e File Setup Capture file name Capture Stimulus Use this field to specify when or how often to save the status of the GPIB signal lines during a capture operation There are three options e SELECTED GPIB EVENTS e INTERNAL CLOCK PULSE e EXTERNAL CLOCK PULSE National Instruments Corp 4 5 GPIB 410 User Manual Software Reference Chapter 4 Each of the above options is described in the following paragraphs SELECTED GPIB EVENTS This option causes the GPIB 410 to sample the bus on each occurrence of any selected event The effective sampling rate under this option varies and depends on which events are enabled and the amount of activity on the bus Any combination of the following seven events can be selected by turning on the indicator DATA transfer Defined as the initial assertion of DAV while ATN is unasserted COMMAND transfer Defined as the initial assertion of DAV while ATN is asserted IDY response Defined as the state of the bus lines at the end of a parallel poll ATN and EOI asserted IFC status Defined as the state of the bus lines at the end of an interface clear IFC asserted REN transition Defined as the initial
106. t F9 gt The header at the top of this column changes to C_ when the keyboard Scroll Lock feature is active see Using the Display Window later in this section This column is empty during Capture Echo operation e AC This field displays the relative offset of the currently active cursor from the inactive cursor This value is useful in determining the distance between two points in the buffer The unlabeled column National Instruments Corp 4 15 GPIB 410 User Manual Software Reference Chapter 4 directly above this field displays the relative offset of each buffer entry from either the capture trigger point or the beginning of the buffer whichever is appropriate Use lt Alt H gt to toggle the numeric base of all offsets from decimal to hex The default display base is decimal This field and column are empty during Capture Echo operation s DATA These columns display the data portion of each buffer entry The left column contains the ASCII and hex representations and the right column contains the corresponding binary representation Only the lower seven bits of each data value are used in determining ASCII representations Characters whose upper bit is set to one are shown in high intensity CONTROL These columns display the control portion of each buffer entry The left column contains the binary values of the five bus management lines and the right column contains the binary values of the three bus han
107. t a field enable the appropriate input mode and use the cursor control keys to point to that field Depending on its type a selected field is indicated by some kind of key prompt and or highlighting For example tyes is a selected option ring To modify the contents of the field use the keys indicated by the prompt in the preceding example lt gt or lt gt and refer to the information contained in the Help Error bar for assistance Each of the three types of input fields is described in detail in the following sections Direct Input Fields Information in these fields is simply typed in from the computer keyboard The information is then verified for correctness when the field is de selected A selected direct input field is distinguished by the presence of a block cursor superimposed over one of the characters in the field There are two types of direct input fields Text and Numeric e Text fields are used for inputting text such as file names Most inline editing functions are supported including delete backspace tab and left and right cursoring In addition typing lt SpaceBar gt or lt Alt B gt clears all characters to blanks from the current cursor position to the rightmost position in the field e Numeric fields are used for inputting numbers in decimal or hexadecimal Numbers are entered calculator style with old digits shifting to the left as new ones are entered while the cursor remains stationary at the righ
108. tch through which you can assert the associated signal on the bus In addition the status of the eight bus data lines is indicated in both character and hexadecimal formats l SE i ti l E l ne CHA HEX 8765354321 E0I ATH SRO REN IFC MAFO NDAC DAU Figure 3 4 GPIB Status Indicators The following list shows how the LEDs and switches appear when they are on and off B LED on Switch on LED off g Switch off As shown in Figure 3 4 the top half of the monitor window displays the current value of each signal on the GPIB If the GPIB signal is asserted the LED is on If the GPIB signal is not asserted the LED is off The bottom half of the monitor window displays the current user switch selection for asserting or unasserting GPIB signals If the switch is on or up the GPIB 410 is currently asserting that signal on the GPIB National Instruments Corp 3 3 GPIB 410 User Manual Overview Chapter 3 The Analyzer Window The analyzer window is divided into the following four areas e The title status bar e The general information display e The help error bar e The function key line These four areas are illustrated in Figure 3 5 ttitle status bar t general information display gt thelpferror bar tfunction key ime Figure 3 5 Format of the Analyzer Window The title status bar contains the name of the current menu screen and shows all enabled GPIB 410 operational modes The general
109. terrupt level Revision B 2 or higher C 8 Revision C C 16 to C 17 K key select fields 3 13 keyboard layout selecting 4 26 kit contents 1 2 M mnemonics mnemonic interpretation of data bus lines 4 16 to 4 17 multiline interface messages B 1 to B 3 Monitor Analyzer Main Menu Screen 3 1 monitor hardware selecting 4 26 to 4 26 National Instruments Corp Index 7 GPIB 410 User Manual Index Monitor Input mode lt Alt M gt 3 9 Monitor Window Data and Control Line Input binary field 4 3 Data Line Input character field 4 3 Data Line Input hexadecimal field 4 3 description of 3 3 4 1 to 4 3 disabled in certain situations 4 2 GPIB status indicators 3 3 illustration of 3 2 4 1 LEDs and switches 3 3 4 2 Monitor Analyzer Main Menu Screen 3 1 multi pass buffer option 4 8 multiline interface messages B 1 to B 3 N No of Times to Execute field 4 22 numeric fields 3 12 O operational modes and functions lt Alt A gt Acceptor Handshaker 3 10 lt Alt C gt Capture 3 8 lt Alt D gt DOS Shell 3 10 lt Alt E gt Capture Echo 3 8 lt Alt G gt Generate 3 9 lt Alt I gt DOS Shell Icon 3 10 lt Alt M gt Monitor Input 3 9 lt Alt R gt Recapture 3 9 lt Alt S gt Source Handshaker 3 10 lt Alt T gt Trigger 3 9 list of 3 8 option ring fields 3 13 optional equipment 1 3 GPIB 410 User Manual Index 8 National Instruments Corp Index P Participate in Handshake field 4
110. the GPIB 410 loops around and continues the search from the other end of the buffer If no pattern is found an error message is displayed in the help error bar and the currently active cursor remains unchanged The search pattern definition window does not have to be visible to perform a search operation Pressing the left or right arrow key whenever the Capture Display screen is active and captured data is present initiates a search for the most recently defined pattern The Pattern Generator Screen This screen shows the controlling parameters in effect during a pattern generation sequence see Figure 4 6 Figure 4 6 Pattern Generator Screen GPIB 410 User Manual 4 20 National Instruments Corp Chapter 4 Software Reference When accessing this screen no input fields can be selected when the following operational modes are enabled e Generate e Monitor Input To start the Pattern Generator type lt Alt G gt When generating is enabled GEN is displayed in the Title Status bar and G is displayed in the DOS shell icon Generating remains enabled until one of the following conditions occurs e You type lt Alt G gt again e The specified pattern sequence runs to completion While generating is enabled the toggle switches in the Monitor window may move or flicker rapidly as patterns are output to the bus If activity on the GPIB should hang during this sequence the switches will contain the last pattern output Direct manip
111. the eight data lines of a pattern when a specific data value is desired CHR HEX oo DATA iTi CONTROL SPEC XOX XOX Hox MO ROX For this example set the Trigger Spec to trigger when listen address 23 hex is detected as a valid command byte on the GPIB As you may recall from examining GPIB410 PAT this is the address of the imaginary third device targeted to receive a message First press lt Ins gt once to get the flashing character prompt then press lt Ins gt once more to get the prompt for hexadecimal input Enter the number 23 The binary value 00100011 is inserted into the Data Spec and the individual letter prompts reappear Now press the lt s gt key twice or until an 1 appears in the ATN position then do the same with the lt k gt key for the DAV position The rest of the lines are left as don t care Your screen should look like Figure A 6 National Instruments Corp A 9 GPIB 410 User Manual Tutorial Appendix A Figure A 6 Trigger Specification Screen The settings used for this example are summarized as follows e The trigger sequence consists of just one GPIB pattern occurring one time with no output pulse to be sent to the TRG OUT connector e The trigger action specified is TRIGG TTTTT and the trigger point is positio ER with position ned at the center of the capture buffer noted by the T This configuration means that the GPIB 410 will trigger the capture mechanism at the
112. tmost position This field supports the use of the delete key lt Del gt which shifts a zero 0 in from the left and the lt SpaceBar gt which clears all digits in the field to zero 0 GPIB 410 User Manual 3 12 National Instruments Corp Chapter 3 Overview Option Ring Fields These fields present a ring of options from which one is selected by using the indicated keys A selected option ring is distinguished by a blinking single character prompt at the beginning of the field The prompt also designates which keys are used in the selection process e The lt gt and lt gt keys or e The left and right cursor control keys the arrow keys Some option rings contain options which include sub fields These fields can be of any of the three basic input types and only appear when the associated option is active A sub field is automatically selected whenever its parent field is selected thus you can modify the value of either field by using the indicated keys Changing the value of the parent field causes the sub field of the deactivated option to be erased Key Select Fields These fields present a grouping of several related fields each of which is a small option ring A selected Key Select field is distinguished by the presence of an individual key prompt either above or beside each component field Press the key indicated by each prompt to modify the value of the associated component field Key Select fields are
113. trigger pattern at a time without reprogramming e The multi pattern repeating trigger capability of the GPIB 410 is implemented in software If two events matching consecutive patterns occur within a sufficiently small time interval it is possible the second event will be missed e If the selected trigger action is TRIGGER with position TTTTT background capturing may be started when the trigger is armed If so following satisfaction of the pattern sequence there is a brief capture adjustment period during which time it is possible that some capture entries may be missed or lost e The likelihood of losing trigger or capture events can be reduced or eliminated by configuring the GPIB 410 to participate in the acceptor handshake while capturing see Capture Settings screen or by enabling the dummy ACP handshaker lt Alt A gt e For triggering a capture operation the following Trigger Spec is the least dependent on software intervention and the most efficient 1 WAIT FOR lt single trigger pattern gt 0001 time then TRIGGER with position I The Trigger Specification screen contains the following fields Data Control Specification e Trigger Repeat Factor National Instruments Corp 4 11 GPIB 410 User Manual Software Reference Chapter 4 e Pulse Output Port Option e Trigger Action Data Control Specification Trigger Pattern Use this field to specify a 16 bit pattern that you want the GPIB 410 to lat
114. ulation of the Monitor switches is not possible while generating is enabled Note During high speed DMA operation you may notice a discrepancy between toggle switch settings and the corresponding status indicators This is normal For command file operation use the load function lt Alt L gt to preload or reload the specified command file The use of this function is optional when the Pattern Generator is enabled it will scan and load the command file automatically if it is not already loaded If any errors are encountered in the command file during the loading process they are written to the file GP1B410 ERR in the current working directory The Pattern Generator screen contains the following fields e No of times to execut Clear switches when done e Send EOI with last byte Pattern Buffer source National Instruments Corp 4 21 GPIB 410 User Manual Software Reference Chapter 4 No of Times to Execute Use this field to enter a repetition factor for pattern generation This value specifies how many times the pattern buffer is output to the GPIB each time you enable the Pattern Generator Valid repetition factors range from 1 to 65535 default 1 Example If the Pattern Buffer source is INPUT WINDOW and the window contains the string abcde entering the value 4 in this field and typing lt Alt G gt causes the sequence abcdeabcdeabcdeabcde to be output to the GPIB Clear Switches When Done
115. ur options DMA 1 default DMA 2 GPIB 410 User Manual 4 28 National Instruments Corp Chapter 4 Software Reference 7 DMA 3 PIO NONE Any one of the valid DMA channels can be selected if the channel is not already in use by another device The value selected must match the input DMA channel jumper setting C on the GPIB 410 interface board It is permissible to set the input and output DMA channels to the same value provided capturing and generating are never used at the same time Warning Attempting to perform a capture operation with a DMA channel already in use by another device may crash your system or have other unpredictable effects If there is no unused DMA channel available on your computer you can select programmed I O PIO operation by setting this field to NONE However because PIO greatly reduces the performance of most capture operations it is recommended that this option be used only when absolutely necessary Output DMA Channel Use this field to specify the method by which user defined pattern buffers are loaded from system memory into the drive latches of the GPIB 410 There are four options s DMA 1 DMA 2 DMA 3 PIO NONE default Any one of the valid DMA channels can be selected if the channel is not already in use by another device The value selected must match the output DMA channel jumper setting S on the GPIB 410 interface board It is permi
116. used primarily to manipulate the individual lines or bits of the GPIB These GPIB fields support the following additional functions e lt Ins gt Use this key to enter any 8 bit ASCII character or hexadecimal value directly into the data portion of the GPIB for example type lt Ins gt a to insert the pattern 0 1100001 lt Ins gt lt Ins gt 35 to insert the pattern 0 01101041 National Instruments Corp 3 13 GPIB 410 User Manual Overview Chapter 3 e lt SpaceBar gt Use this key to reset all component fields to their original off or null position GPIB 410 User Manual 3 14 National Instruments Corp Chapter 4 Software Reference This chapter contains reference material for the GPIB 410 software It contains information about the Monitor window and the various screens of the Analyzer window and their respective input fields The Monitor Window This window shows the current state of the sixteen GPIB signal lines and indicates which of those lines if any are being asserted by the GPIB 410 The window is always present at the top of the screen and is divided into four sections see Figure 4 1 Figure 4 1 Monitor Window at the Top of the Screen National Instruments Corp 4 1 GPIB 410 User Manual Software Reference Chapter 4 The two left most sections of the Monitor window display the contents of the eight data lines in character hexadecimal and binary format The two right most sections display the cont
117. uter Keyboard Mode ce eieeeeeeeeeeeeeeeeeee 4 27 Computer Speaker Mode 0 eee eeeeeeeeeseesee cece 4 28 Base W O Address innne nii ika 4 28 Input DMA Channel eee cee ceseeseeeeeeeeeseeeeeeaee 4 28 Output DMA Channel 00 eee ceeeee ce cnecneeeeeenes 4 29 Interrupt Jumper Setting 0 eee eeeeeeeeeeeeeeee 4 30 Status Refresh Rate eee eseeeceeceeeesecneceeeeeeenes 4 30 Acceptor Handshake Rate 0 0 0 eeceeeeseseeseceeceeeeeeeaes 4 31 Source Handshake Rate o eee eee ceeeseeteeeeeeeeeeeeee 4 31 Help File Name siisii reiissi iisisti 4 32 Program Exit Screen oo sees reee Erene EEEE r RERE 4 32 Save Current Configuration Before Exiting 4 33 Appendix A Tutorial sonein tric erent isc Goo denied A 1 Example 1 Capturing Data From the GPIB A 1 Example 2 Triggering and Pattern Generating 0 0 0 A 7 Appendix B Multiline Interface Messages c cccccceeceeseesseceeseeeesneee B 1 Appendix C Hardware and Software Configuration 0 0 0 0 00 C 1 Hardware Revision B 2 or Higher cece eeeeeeeeeeee C 1 Base I O Address Configuration 0 0 00 eee eeeeeeee C 2 DMA Channel Configuration 0 0 0 eee eeeeeeeeereeee C 5 Interrupt Selection 0 0 eee eseseeeceeeeeeeceeeeeeeaes C 8 Hardware Revision Cessio erinin C 10 Base I O Address Configuration 0 cece eeeeeeeeeee C 11 DMA Channel Configuration eseeseesesseeeeeeeeeresesen C 13 Interrupt Se
118. written to the target capture file when you type lt Alt W gt Selecting GPIB 410 User Manual 4 8 National Instruments Corp Chapter 4 Software Reference cursor to cursor causes only those entries falling on or between the positional cursors 1 and 2 see Capture Display Screen to be written to the file The cursors can be in any order File Setup Capture File Name Use this field to enter the pathname of a file on disk to be written from or loaded into the capture buffer You can enter any valid DOS pathname including a drive specification up to 47 characters in length default GPIB410 CAP This file is used by the following functions e Capture Write lt Alt W gt e Capture Load lt Alt L gt e Capture Auto Write If the file is written from the capture buffer the existing contents of the file are discarded If the file is loaded into the capture buffer the file must contain valid GPIB 410 capture data Warning The Capture Auto Write function when enabled overwrites this file immediately as soon as a capture operation is started The existing contents are lost regardless of whether new capture data is subsequently written to the file GPIB 410 capture files are stored in binary format To view or print the contents of a capture file from a DOS shell use the FMT410 utility documented in Appendix G Saving and Viewing Capture Information on Disk The Trigger Specification Screen This screen shows the sequenc
119. y the speed of the GPIB 410 source handshake functions The value selected applies to both the lt Alt S gt SRC handshaker and the handshake used during pattern generation sequences There are 25 options 60 Hz 400 Hz 4 KHz 40 KHz 400 KHz 80 Hz 500 Hz 5 KHz 50 KHz 500 KHz 100 Hz 1 KHz 10 KHz 100 KHz 700 KHz 200 Hz 2 KHz 20 KHz 200 KHz 900 KHz 300 Hz 3 KHz 30 KHz 300 KHz MAXIMUM National Instruments Corp 4 31 GPIB 410 User Manual Software Reference Chapter 4 Selecting one of the numeric options programs the GPIB 410 hardware to regulate the source handshake to an approximation of the requested speed Selecting MAXIMUM disables the hardware timers and allows the handshake to proceed at the fastest rate possible Note Because of other configuration variables such as host processor speed and DMA vs PIO Pattern Generator operation the actual source handshake rate observed may be less than requested Help File Name Use this field to enter the full pathname of the GPIB 410 help text file You can enter any valid DOS pathname including a drive specification up to 47 characters in length default GPIB410 HLP Program Exit Screen Use this screen to specify whether to save the current state of the software upon termination of the GPIB410 program see Figure 4 8 Figure 4 8 Program Exit Screen GPIB 410 User Manual 4 32 National Instruments Corp Chapter 4 Software Reference You can only terminate the GPIB410 program
120. ypessssscpepesscsyseveasssousesece 3 7 Operational Modes and Functions 0 eee eeeseeseeeeeeeeeeeeeeenees 3 8 lt AIt C gt Capture cece e orui eeey o rE Ra eae 3 8 lt Alt E gt Capture Echo nonen 3 8 National Instruments Corp v GPIB 410 User Manual Contents lt AIt R gt Recapture 2 s cscsthesissesstesstsssstesccuscstentssbsstece 3 9 SATS Tige esd eciietio wus niied dechionsiiti mis 3 9 lt AIt G gt Generate eee cess ceou e aioi 3 9 lt Alt M gt Monitor Input eee cece ceecseceeeneeeeeeeee 3 9 lt Alt A gt Acceptor Handshaker 0 0 ec ceeeeeeeeeeeeeeeee 3 10 lt Alt S gt Source Handshaket eee eeeeeeeeeenee 3 10 lt Alt D gt DOS Shell nni cre ne oiia iis 3 10 lt Alt I gt DOS Shell Icon ssssssesesseeeesseeerserrrerrrrreeeee 3 10 General Input Conventions ssseesseesseessetsesseesrsrtsrerrereerssersse 3 11 Direct Input Fields s cssssscsu secksspessessestanssosencspes siete sass 3 12 Option Ring Fields e eee ceeeseeeeceeceeeeeeeeeeeeenae 3 13 Key Select Fields issii eristeen nnna 3 13 Chapter 4 Software Reference ceccsccssessesssesseeesessseesnssneecneecseesseeetennees 4 1 The Monitor Window 000 00 ee eeeeeeescessecsecneceseeseeeeceseeseecaecneenaes 4 1 Data Line Input Character eeceeeceesseeeneeeeeeeeeeeeee 4 3 Data Line Input Hexadecimal eee ceeeeeeeeneeeeees 4 3 Data and Control Line Input Binary 0 0 0 4 3 The Capture Settings Screen cece eeceee

GPIB-410 User Manual - National Instruments

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