PCI-7224/7248/7296
Contents
1. 1 5 Port C PCI CHO PCU CH1 s Port C Upper Nibble PCI CHO PCL CH1 s Port C Low Nibble PCI CH1 PA CH2 s Port A PCI CH1 PB CH2 s Port B PCI CH1 PC CH2 s Port C PCI CH1 PCU CH2 s Port C Upper Nibble PCI CH1 PCL CH2 s Port C Low Nibble PCI CH2 PA CH2 s Port A PCI CH2 PB CH2 s Port B PCI CH2 PC CH2 s Port C PCI CH2 PCU CH2 s Port C Upper Nibble PCI CH2 PCL CH2 s Port C Low Nibble PCI CH3 PA CH3 s Port A PCI CH3 PB CH3 s Port B PCI CH3 5 Port C PCI CH3 PCU Port C Upper Nibble PCI CH3 PCL CHS s Port C Low Nibble Note 2 and are only available for PCI 7296 card only direction port I O direction INPUT PORT the port is configure as INPUT OUTPUT PORT the port is configure as OUTUT Return Code ERR NoError 48 7248 96 Software Reset Description This function is used to reset the I O port configuration After reset PCI 7248 96 all the ports will be set as input ports Note that this function can not re start the PCI bus and all the hardware setting won t be change either Syntax PCI 7248 C C DOS Windows 95 32 C C Software Libraries U16 W 7248 Software Reset U16 cardNo Visual Basic Windows 95 W 7248 Software Reset ByVal cardNo As Integer As Integer PCI 7296 C C DOS Windows 95 U16 W 7296 Software Reset U16 cardNo Visual Basic Windows 95 W 7296 Software Reset ByVal cardNo As Integer As Integer2. 5 2 1 WHAT YOU HAVE 5 22 UNPACKING eee xe Uc tee vans 6 2 3 DEVICE INSTALLATION FOR WINDOWS 95 6 24 PCE7248 LAYOUT 2 5 PCI 7296 2 6 CONNECTOR PIN ASSIGNMENT 2 7 JUMPER 5 2 8 PCI 7248 7296 INSTALLATION OUTLINE 11 OPERATION THEOREM cccccccssssssscssssccccccccccccccccccccccccccsssssscesccssess 13 3 1 DIGITAL I O PORTS 15 3 2 8254 TIMER COUNTER 17 33 INTERRUPT SYSTEM RN PE 18 3 4 12 AND 5V POWER SUPPLY 21 C C SOFTWARE LIBRARIES eee ee eee eere eee 23 4 1 INSTALLATION 23 4 2 RUNNING TESTING UTILITY 7296UTIL EXE 7248UTIL EXE 26 4 3 SOFTWARE DRIVER NAMING CONVENTION eerte 26 4 4 27248796 3 ede ete eee ee 27 4 5 7248 96 DL iEn 28 4 6 1248 96 D ssi eS AO extra Bua eet e on Oe abe 30 4 7 7248 96 CONFIG PORT eie Pe tede 31 4 8 7248 96 5 32 Contents i 4 9 _7248 96 INT START 4 10 7248 96 INT 5 PROD
3. 5 Port C Upper Nibble PCI CH3 PCL CHS s Port C Low Nibble Note 2 and are only available for PCI 7296 card only diData return 8 bit value from digital port Return Code ERR NoError C C Software Libraries 29 4 6 7248 96 DO Description This function is used to write data to digital output ports There are 6 digital output ports P1A P1B P1C P2A P2B P2C could be configure as digital output channel on the PCI 7248 Syntax PCI 7248 C C DOS U16 7248 DO 016 cardNo 016 channelPort 08 doData C C Windows 95 U16 W 7248 DO U16 cardNo U16 channelPort U16 doData Visual Basic Windows 95 W 7248 DO ByVal cardNo As Integer ByVal channelPort As Integer ByVal doData As Integer As Integer PCI 7296 C C DOS U16 7248 DO 016 cardNo 016 channelPort 08 doData C C Windows 95 U16 W 7248 DO U16 cardNo U16 channelPort U16 doData Visual Basic Windows 95 7248 DO ByVal cardNo As Integer ByVal channelPort As Integer ByVal doData As Integer As Integer Argument cardNo card number to select borad channelPort channelPort port of each channel PCI CHO PA CH1 s Port A PCI CHO PB CH1 s Port B PCI CHO PC 1 5 Port C PCI CHO PCU 1 5 Port C Upper Nibble PCI CHO PCL CH1 s Port C Low Nibble PCI CH1 PA CH2 s Port A PCI CH1 PB CH2 s Port B PCI CH1 PC CH2 s Port C PCI CH1 PCU CH2 s Port C Upper Nibble PCI CH1 PCL CH2 s Port C Low Nibbl
4. Argument cardNo card number which the DIO will be reset Return Code ERR NoError 4 9 7248 96 INT Start Description This function is only available in Windows 95 driver This function is used to initialize and start up the interrupt control Please refer to section 3 3 for detailed description of interrupt system After calling this function every time an interrupt request signal generated a software event is signaled So that in your program you can use wait operation to wait for the event When the event is signaled it means an interrupt is generated Please refer to the sample program 7248int c or 7296int c Syntax PCI 7248 C C DOS Windows 95 void W 7248 INT Start U16 cardNo U16 c1 U16 c2 U16 ctriIValue HANDLE hlIntEvent Visual Basic Windows 95 W 7248 INT Start ByVal cardNo As Integer ByVal c1 As Integer ByVal c2 As Integer ByVal ctriValue As Integer hIntEvent As Long PCI 7296 C C DOS Windows 95 C C Software Libraries 33 void W 7296 INT Start U16 cardNo U16 c1 U16 c2 U16 ctriI Value HANDLE hlIntEvent Visual Basic Windows 95 W 7296 INT Start ByVal cardNo As Integer ByVal c1 As Integer ByVal c2 As Integer ByVal ctriValue As Integer hIntEvent As Long Argument cardNo card number which the DIO will be reset c1 If the interrupt source is set as internal timer source this value is the frequency divider of Timer 1 c2 If the interrupt source is set a
5. Connector numbers 9 oM 7 i P1CTRL P2CTRL P3CTRL P4CTRL Table 3 1 1 1 0 Port Names Port Names Operation Theorem 15 There are four ports on every 8255 PPI including port A B C and the control prot PA PB and PC could be wrote or read but the control port is write only Refer to section 4 3 for details about programming of DIO ports 3 1 5 Control Word The control word written in the control port is used to setup PA PB and PC as input or output port Fig 3 1 shows the format of the control word Table 3 1 2 shows the 16 possible control word and the respective configurations D7 D6 D5 D4 D3 D2 D1 DO x x x X 2 X don t care 1 0 1 0 1 0 Input Output of Port C low nibble Input Output of Port B Input Output of Port C high nibble 1 0 Input Output of Port A Figure 3 1 Control Word Format Control iu PORT C acu PORT C UPPER LOWER propo Ee i dE Table 3 1 2 Summary of control word DO D4 16 Operation Theorem power on defalut configuration 3 1 6 Power On Configuration The defalut configuration after power on hardware reset or software reset is to set all ports as input ports therefore the users won t worry about damaging the external devices when system is power on In addition the default signal level can be pulled high or pulled low by setting the jumpers Ref
6. 248 into a PC AT slot 2 8 3Installation Procedures 1 Turn off your computer 2 Turn off all accessories printer modem monitor etc connected to computer 3 Remove the cover from your computer 4 Select a 32 bit PCI expansion slot PCI slot are short than ISA or EISA slots and are usually white or ivory Caution Don t put PCI 7248 7296 card into ISA or EISA slot 5 Before handling the PCI 7248 7296 discharge any static buildup on your body by touching the metal case of the computer Hold the edge and do not touch the components 6 Position the board into the PCI slot you selected 7 Secure the card in place at the rear panel of the system unit using screw removed from the slot 2 8 4 Running the 7248UTIL EXE or 7296UTIL EXE A testing program is included in this utility you can check if your PCI 7248 7296 can work properly Refer Section 5 2 for further detailed information 12 Installation Registers and Operation Theorem In this chapter a register format and primitive digital operations of 7248 series products will be specified The operation theorem of the digital timer interrupt are introduced Before programming applying the PCI 7248 96 cards to your applications please go through this chapter to understand the features of the functions 3 1 1 0 Port Base Address The PCI 7248 products function as a 32 bit PCI target device to any master on the PCI bus There are three types of r
7. 4 PCI 7248 PCI 7296 Mode Control Mode Status Source Control Clear Interrupt 14 Operation Theorem 3 1 Digital I O Ports 3 1 1 Introduction The 7224 7248 7296 products can emulate one two four mode 0 configuration of 8255 programmable peripheral interface PPI chips There are 24 DIO signals for every PPI The PCI 7248 and PCI 7296 has 48 and 96 DIO signals respectively 3 1 2 8255 Mode 0 The basic functions of 8255 mode 0 Two 8 bit I O ports port A PA and port PB Two nibble wide 4 bit ports C PC upper and PC lower Any port can be used as either input or output Outputs are latched whereas inputs are buffered 16 different input output configurations are available 3 1 3 Special Funtion of the DIO Signals Two signals PCO and of CN1 and CN2 can be used to generate hardware interrupt Refer to the interrupt system section for details about the interrupt control In addition the P1C4 signals can be used as input signal of event counter 3 1 4 Digital Port Programming Users can write the digital output value to or read back the digital signal level from the PPI ports by using the software library Here we define the port name in Table 3 1 1 These port names are used both in software library and all through this manual Althought there are four 8255 PPls in 7296 and only two 8255 in PCI 7248 the programming for 7224 48 96 are fully compatible
8. 95 in another directory please click Browse button to change the destination directory 24 C C Software Libraries Choose Destination Location p ES m PN Then you can click Next to begin installing 7248 96 DLL for Windows 95 After you complete the installation of PCI 7248 96 Software PCI 7248 96 s DLL 7248 DLL or 7296 DLL is copied to Windows System directory default is C WINDOWS SYSTEM for Win 95 and the driver files W95 7248 VXD W95 7296 VXD and PCIW95 VXD are also copied to the appropriate directory C C Software Libraries 25 4 2 Running Testing Utility 7296UTIL EXE 7248UTIL EXE After finishing the DOS installation you can execute the utility by typing as follows cd 7296 DOS UTIL or cd 7248 DOS UTIL C 7296UTIL or 7248UTIL 4 3 Software Driver Naming Convention The functions of PCI 7248 s or PCI 7296 s software drivers are using full names to represent the functions real meaning The naming convention rules are In DOS Environment hardware model action e g 7248 Initial In order to recognize the difference between DOS library and Windows 95 library A capital W is put on the head of each function name of the Windows 95 DLL driver e g W 7248 Initial There are 5 functions provided by PCI 7248 software drivers The detail descriptions of each function are specified in the following sections The functions prototype and s
9. PCI 7224 7248 7296 24 48 96 bit Parallel Digital 1 0 Card Copyright 1997 ADLink Technology Inc All Rights Reserved Manual Rev 2 20 December 10 1998 The information in this document is subject to change without prior notice in order to improve reliability design and function and does not represent a commitment on the part of the manufacturer In no event will the manufacturer be liable for direct indirect special incidental or consequential damages arising out of the use or inability to use the product or documentation even if advised of the possibility of such damages This document contains proprietary information protected by copyright All rights are reserved No part of this manual may be reproduced by any mechanical electronic or other means in any form without prior written permission of the manufacturer Trademarks PCI 7248 and 7296 are registered trademarks of ADLink Technology Inc Other product names mentioned herein are used for identification purposes only and may be trademarks and or registered trademarks of their respective companies CONTENTS eel gia I HOW TO USE THIS GUIDE ecce e eese esee eee e esee eee eee eee eee eese e eee III INTRODUCTION 1 1 1 BEA TURES T 1 1 2 APPLICATIONS s scent RGB DIERUM EN 2 1 3 SPECIRHICATION eee e eb ive Pes esee 3 INSTALLDATION aepo coton EEEE
10. UCT WARRANTY SERVICE ii Contents How to Use This Guide This manual is designed to help you use the PCI 7248 96 It describes how to modify and control various functions on the PCI 7248 96 card to meet your requirements It is divided into three chapters Chapter 1 Introduction gives an overview of the product features applications and specifications Chapter 2 Installation describes how to install the 7248 96 The layout of PCI 7248 96 are shown the jumper settings the connectors specifications and the notes for installation are described e Chapter 3 Operation Theorem describes more details about the versatile functions including DIO timer counter and interrupt Systems Chapter 4 Software Library specifies the software library of C language under DOS environment that makes you can operate the functions on this card easily How to Use This Guide eiii Introduction The PCI 7248 and PCI 7296 are multi functions digital board used for industrial PC with PCI bus The PCI cards are plug and play therefore it is not nessary to set any jumper for matching the PC environment 7248 is a 48 bit Parallel DIO card and PCI 7296 is an 96 bit parallel DIO card The PCI 7248 emulates two industry standard mode zero configuration of 8255 Programmable Peripheral Interfac
11. e PCI CH2 PA CH2 s Port A PCI CH2 PB CH2 s Port B PCI CH2 PC CH2 s Port C PCI CH2 PCU CH2 s Port C Upper Nibble 30 C C Software Libraries PCI CH2 PCL CH2 s Port C Low Nibble PCI CH3 PA CH3 s Port A PCI CH3 PB CH3 s Port B PCI CH3 CH3 s Port C PCI CH3 PCU 5 Port C Upper Nibble PCI CH3 PCL CHS s Port C Low Nibble Note 2 and are only available for PCI 7296 card only doData value will be written to digital output port Return Code ERR NoError 4 7 7248 96 Config Port Description This function is used to configure the Input or Ouput of each Port Each Port of PCI 7248 is either input or output so it has to configure as input or output before I O operations are applied Syntax PCI 7248 C C DOS Windows 95 U16 W 7248 Config Port U16 cardNo U16 channelPort U16 direction Visual Basic Windows 95 W 7248 Config Port ByVal cardNo As Integer ByVal channelPort As Integer ByVal direction As Integer As Integer PCI 7296 C C DOS Windows 95 U16 W 7296 Config Port U16 cardNo U16 channelPort U16 direction Visual Basic Windows 95 W 7296 Config Port ByVal cardNo As Integer ByVal channelPort As Integer ByVal direction As Integer As Integer Argument cardNo card number to select borad channelPort channelPort port of each channel C C Software Libraries 31 PCI CHO PA CH1 s Port A PCI CHO PB CH1 s Port B PCI CHO PC
12. e PPI chips The PCI 7296 emulates four PPI chips These two cards are compatible not only on hardware connectors but also on software programming This manual is used to lead users to know how to operate these two cards PPI connector offers 3 ports PA PB and PC The PC can also be subdivided into 2 nibble wide 4 bit ports PC Upper and PC Low Two and four 50 pin male ribbon connectors come equipped with the PCI 7248 and PCI 7296 Each connector is corresponding to one PPI chip with 24 DIO points The PCI 7248 96 is programmed using the ADLink s software library The programming of these PCI cards is as easy as AT bus add on cards 1 1 Features The PCI 7248 96 Multi functions Digital I O Boards provide the following advanced features Introduction 1 1 1 1 Digital I O Ports 48 or 96 TTL DTL compatible digital I O lines Emulates two four industry standard mode 0 of 8255 PPI Buffered circuits for higher driving Direct interface with OPTO 22 compatible I O module Output status readback 1 1 2Timer Counter and Interrupt System A 32 bits timer to generate watchdog timer interrupt A 16 bits event counter to generate event interrupt Programmable interrupt source Dual interrupt system 1 1 3 Miscllenous Provide 12V and 5V power supply on OPTO 22 connectors On board resettable fuses to protect power supply for external devices 1 2 Applications Programmable mixed digi
13. egisters on the PCI 7248 PCI Configuration Registers PCR Local Configuration Registers LCR and PCI 7248 registers The PCR which conforms the PCl bus specifications is initialized and controlled by the system plug amp play PCI BIOS Please refer to the PCI BIOS specification to understand how to get information from the PCRs The LCR is specified by the PCI bus controller PLX 9050 It is not necessary for users to understand the details of the LCR if you use the software library The base address of the LCR is assigned by the PCI p amp p BIOS The assigned address is located at offset 14h of PCR Please refer to the 9050 5 data sheet for the detail operation of the LCR and also the register format of the PCR Operation Theorem 13 The registers of 7248 series are shown in the Table 3 1 The base address of these registers is also assigned by the PCI p amp p BIOS The assigned base address is stored at offset 18h of PCR Therefore users can read the PCR to know the base address by using the BIOS function call Note that the PCI 7248 registers are all 8 bits The users can access these registers by 8 bits instructions only 3 2 Registers Map Table 3 1 shows the registers description and offset address relative to the base address Please refer to the following sections for more detail of every registers Offset Write Boards PCI 7224 PCI 7248 PCI 7296 PCI 7248 PCI 7296 PCI 7296 PCI 722
14. er s installation disk into the drive selected and then click Cancel Copy manufacturer s files from X SoftwaretPei Card7248Win95 Y Browse i Place ADLink s Manual amp Software Utility CD into the appropriate CD driver Type X Software NuDAQPCI 7248 Win95 or X Software NuDAQPCI 7296 Win95 these directory includes PCI 7248 96 device information files 7248 inf 7296 inf in the input field X indicates the CD ROM driver and then click OK The system will start the installation of PCI 7248 96 Installation 7 2 4 PCI 7248 Layout C2 P2 PCI Controller C o CN2 Figure 2 1 7248 Layout 2 5 PCI 7296 Layout m ps BI Fes E n 1n ej a 0 uty Lj CN2 CN3 CN4 Figure 2 4 PCI 7296 Layout 8 Installation 2 6 Connector Pin Assignment The ports of PCI 7248 96 emulate the mode 0 configuration of the 8255 general purpose programmable peripheral interface This card comes equipped with two four 50 pin male IDC connectors that interface with OPTO 22 Figure 2 5 shows the circuits and pin assignment of PCL 7248 96 s connectors CN1 CN4 Note The pin assignment of the CN1 CN4 connectors are identical D O O D b FUSE 8 8 8 B 9 BN QOOOOOOOOOOoOOoOOooooooooooo
15. er to section 2 6 for setting the power on state of the DIO ports 3 1 7 Note for Output Data Be careful about the initial condition of dgital output signals If user set the control word as output port after power on the previous uncertain output value will be put on the output pins immediately Therefore BE SURING TO SET A SAFE OUTPUT VALUE BEFORE SETTING ANY PORT AS OUT PORT 3 2 8254 Timer Counter Operation 3 2 1 Introduction One 8254 programmable timer counter chip is installed in PCI 7248 7296 There are three counters in one 8254 chip and 6 possible operation modes for each counter The block diagram of the timer counter system is shown in Figure 3 2 i 8254 Chi P1C4 Trigger p Control Counter 0 og Eventa Hla 2 MHz Clock Timer 1 Timer 2 Timer IRQ Figure 3 2 Timer counter system of 7248 96 The timer 1 and timer 2 of the 8254 chip are cascaded as a 32 bits programmable timer software library the timer 1 and 2 are always set as mode 2 rate generater Operation Theorem 17 In software library the counter 40 is used as an event counter that is interrupt on terminal count of 8254 mode 0 Please refer to section 4 4 for programming the timer counter functions 3 2 2 Cascaded 32 bits Timer The input clock frequence of the cascaded timers is 2M Hz The output of the timer is send to the interrupt system refer t
16. g edge trigger when PCO L 0 1 PCO rising edge trigger when PC3 H Table 3 3 2 IRQ Trigger conditions Because the P1 P2CO and P1 P2C3 are external signals the applications can utilize the combination of the four signals to generate a proper IRQ 20 Operation Theorem 3 4 12V and 5V Power Supply The OPTO 22 compatible connectors provide external devices the 12 volts and 5 volts power supply To aviod short or overload of the power supply the resetable fuses are added on all the power supply signals Refer to Figure 2 5 The maximun current for 5 volts on every connector is 0 5 A If the load current is larger than 0 5 A the resistance of fuse will increase because of the temperature rising The rising resistance will cause the power supply drop and reduce current the overload or short condition is removed the fuse will get to normal condition It is not nessary to repair or re install the fuse The maximum current of 12 volts for all the four connectors is also 0 5 A The action of the fuse is the same as which used for 5V power The limitation is more resitrict than 5V power supply because the PCI bus can not provide large current Operation Theorem e 21 C C Software Libraries In this chapter the PCI 7248 and PCI 7296 software libraries for DOS and Windows 95 are described 4 1 Installation 4 1 1 Installation The PCI 7248 96 s Software Library supplied with PCI 7248 96 includes a utility software C
17. gram use JA1 as an example to show the possible configurations 1 Port A of CN1 are power on pulled H 1lpo o 2 JA1 2 Port A of are power on pulled L 1 oloo 2 3 Port A of CN1 are power on floating The jumper is removed 1 o oo JA1 2 7 212V Power Supply Configuration The pin 2 and pin 4 of the CN1 CN4 50 pin OPTO 22 connectors can be configured as 12V power supply or ground Please refer to Figure 2 5 for the 12 volts power supply circuits JP1 JP4 set the 12V power of CN1 CN4 respectively The default configuration is short to ground The following diagram shows the setting of JP2 shorting the pin 2 and pin 4 of CN2 to ground 1 0 00 2 JA2 2 8 PCI 7248 7296 Installation Outline 2 8 1 Hardware configuration PCI 7248 7296 has plug and play component the card can requests an interrupt via a system call The system BIOS responds with an interrupt assignment based on the 7248 7296 5 configuration registers and on known system parameters which are set by system BIOS Interrupts assigned are a function of the system the system BIOS the installed driver and the installed PCI boards Memory usage port locations of the PCI 7248 7296 is also assigned by system BIOS The address assignment is done on a board by board basis for all PCI 7248s in the system 2 8 2 PCI slot selection Installation 11 Your computer will probably have both PCI and ISA slots Do not force the PCI 7
18. he shipping materials and carton in case you want to ship or store the product in the future Installation 5 2 2 Unpacking Your PCI 7248 96 card contains sensitive electronic components that can be easily damaged by static electricity The card should be done on a grounded anti static mat The operator should be wearing an anti static wristband grounded at the same point as the anti static mat Inspect the card module carton for obvious damage Shipping and handling may cause damage to your module Be sure there are no shipping and handing damages on the module before processing After opening the card module carton exact the system module and place it only on a grounded anti static surface component side up Note DO NOT APPLY POWER TO THE CARD IF IT HAS BEEN DAMAGED You are now ready to install your ACL 7248 96 2 3 Device Installation for Windows 95 While you first plug 7248 96 card and enter Windows 95 the system will detect this device automatically and show the following dialog box that prompts you to select the device information source 6 Installation New Hardware Found C Do not install a driver Windows will not prompt you again C Select from a list of alternate drivers Choose the default option Driver from disk provided by hardware manufacturer and then a dialog box is shown to prompt you give the path of installation disk Install From Disk Insert the manufactur
19. herein This warranty shall not apply to equipment that has been previously repaired or altered outside our plant in any way as to in the judgment of the manufacturer affect its reliability Nor will it apply if the equipment has been used in a manner exceeding its specifications or if the serial number has been removed Seller does not assume any liability for consequential damages as a result from our products uses and in any event our liability shall not exceed the original selling price of the equipment The equipment warranty shall constitute the sole and exclusive remedy of any Buyer of Seller equipment and the sole and exclusive liability of the Seller its successors or assigns in connection with equipment purchased and in lieu of all other warranties expressed implied or statutory including but not limited to any implied warranty of merchant ability or fitness and all other obligations or liabilities of seller its successors or assigns The equipment must be returned postage prepaid Package it securely and insure it You will be charged for parts and labor if you lack proof of date of purchase or if the warranty period is expired Product Warranty Service e 37
20. language library and some demonstration programs which can help you reduce programming work MS DOS Software Installation 1 Turn your PC s power switch on 2 Put the ADLink s Manual amp Software Utility CD into the appropriate CD driver 3 Type the commands X indicates the CD ROM driver under DOS environment For PCI 7248 X CD Software Pci Card 7248 0 5 X Software Pci_Card 7248 DOS gt SETUP For PCI 7296 X gt CD Software Pci 7296 00 Software Pci Card 7296 DOS SETUP C C Software Libraries 23 4 Aninstallation completed message will be shown on the Screen After installation all the files of PCI 7248 96 Library amp Utility for DOS are stored in C ADLink 7248 DOS or C ADLink 7296 DOS directory Windows 95 Software Installation 1 Turn your PC s power switch on and enter Windows 95 2 Put the ADLink s Manual amp Software Utility CD into the appropriate CD driver 3 If Windows 95 is loaded choose Run from the Start menu 4 Type X3Software Card 7248 Win95Setup exe or X Software Card 7296 Win95Setup exe in the Run dialog box X indicates the CD ROM driver Setup first displays a Welcome dialog box Please click Next button to go on installation After a welcome dialog box Setup prompts the following dialog box for you to specify the destination directory The default path C 7248w95 or C 7296w95 If you want to install 7248 96 DLL for Windows
21. o section 3 3 Therefore the maximum and minimum watchdog timer interrupt frequency is 2M Hz 2 2 500K Hz and 2M Hz 65535 65535 respectively 3 2 3 Event Counter and Edge Control The counter 0 of the 8254 chip can be used as event counter The input of counter 0 is PC4 of CN1 P1C4 The counter clock trigger direction H to L or Lto H is programmable The gate control is always enable The output is send to interrupt system which named as event IRQ If counter 0 is set as 8254 mode 0 the event counter IRQ will generate when the counter value is counting down to zero 3 3 Interrupt System 3 3 1 System Architecture The PCL 7248 96 s interrupt system is a powerful and flexable system which is suitable for many applications The system is a Dual Interrupt System The dual interrupt means the hardware can generate two interrupt request signals in the same time and the software can service these two request signals by ISR Note that the dual interrupt do not mean the card occupy two IRQ levels The two interrupt request signals INT1 and INT2 are comes from digital input signals or the timer counter output An interrupt sources multiplexer MUX is used to select the IRQ sources Fig 3 3 1 shows the interrupt system 3 3 2 IRQ Level Setting There is only one IRQ level is used by this card althought it is a dual interrupt system This card uses INT A interrupt request siganl to PCI bus The mother board circuits will
22. ome useful constants are defined in pci h 26 C C Software Libraries 4 4 7248 96 Initial Description The PCI 7248 or PCI 7296 cards are initialized by this function The software library could be used to control multiple PCI 7248 cards Because PCI 7248 is in PCI bus architecture and meets the plug and play specifications the IRQ and adddress are assigned by system BIOS directly Syntax PCI 7248 C C DOS Windows 95 U16 W 7248 Initial U16 existCards PCI INFO pcilnfo Visual Basic Windows 95 W 7248 Initial existCards As Integer pcilnfo As PCI INFO As Integer PCI 7296 C C DOS Windows 95 U16 W 7296 Initial 016 existCards PCI INFO pcilnfo Visual Basic Windows 95 W 7296 Initial existCards As Integer pcilnfo As PCI INFO As Integer Argument existCards numbers of installed PCI 7248 7296 cards The returned value shows how many PCI 7248 7296 cards are installed in your system pciinfo It is a structure to memorize the PCI bus plug and play initiallization information which is decided by p amp p BIOS The PCI INFO structure is defined in ACL PCI H The base I O address and the interrupt channel number is stored in pciinfo which is for reference Return Code ERR NoError ERR PCIBiosNotExist C C Software Libraries 27 4 5 7248 96 DI Description This function is used to read 8 bit digital inputs data from digital input port You can get the 8 bits da
23. oo 2 24 26 28 30 32 3 36 38 40 42 48 50 HEADER 25X2 45V FUSE Figure 2 5 Connectors Pin Assignment Power Signals Installation 9 The DIO pin names are specified as PnXb where n means the connector reference number n 1 4 X means the port name X B or C b means the bit number of a port b 0 7 For example P1C4 means bit 4 of port C on connector CN1 Note The power supply pins are protected by resetable fuses Refer to section 3 4 for details of the power supply 2 7 J umper Description The PCI 7248 96 DIO cards are plug and play cards using PCI bus It is not necessary to setup the card configurations to fit the computer system s hardware configurations However to fit users versitile operation environment there are still a few jumpers to set the power on state of ports and the usage of the 12V output pins 2 7 1 Power on State of Ports For every port on the PCI 7248 96 cards the power on state is set as input therefore the voltage could be pulled high pulled low or floating It is dependent on the jumpers setting Table 2 6 lists the reference number of the jumpers and the corresponding port names Table 2 6 Jumpers and Port names list 10 Installation The physical meaning of all the jumpers are identical The power on state of each port can be set independently The defalut is to pull all signals high The following dia
24. s internal timer source this value is the frequency divider of Timer 2 cirlValue value for INT mode setting The value can be set for INT1 is INT1 OFF INT1 P1CO INT1 P1C3CO or INT1 EVENT IRQ The value can be set for INT2 is INT2 OFF INT2 P2CO0 INT2 P2C3CO or INT2 TIMER IRQ Please refer to section 3 3 4 for detailed description hintEvent the handle of the event for interrupt signals Return Code ERR NoError 4 10 7248 96 INT Stop Description This function is only available in Windows 95 driver This function is used to disable the interrupt signal generation Syntax PCI 7248 C C DOS Windows 95 void W 7248 INT Stop U16 cardNo Visual Basic Windows 95 W 7248 INT Stop ByVal cardNo As Integer PCI 7296 C C DOS Windows 95 void W 7296 INT Stop U16 cardNo 34 C C Software Libraries Visual Basic Windows 95 W 7296 INT Stop ByVal cardNo As Integer Argument cardNo card number which the DIO will be reset Return Code ERR NoError C C Software Libraries 35 Product Warranty Service Seller warrants that equipment furnished will be free form defects in material and workmanship for a period of one year from the confirmed date of purchase of the original buyer and that upon written notice of any such defect Seller will at its option repair or replace the defective item under the terms of this warranty subject to the provisions and specific exclusions listed
25. ta from 7248 DI by using this function The written data and read in data is 8 bits data Each data is mapped to a signal as the table below D7 D5 D4 D3 D2 D1 DO Syntax PCI 7248 C C DOS U16 7248 DI U16 cardNo 016 channelPort U8 diData C C Windows 95 U16 W 7248 DI U16 cardNo 016 channelPort 016 diData Visual Basic Windows 95 W 7248 DI ByVal cardNo As Integer ByVal channelPort As Integer diData As Integer As Integer PCI 7296 C C DOS U16 7296 DI U16 cardNo U16 channelPort U8 diData C C Windows 95 U16 W 7296 DI 016 cardNo 016 channelPort 016 diData Visual Basic Windows 95 W 7296 DI ByVal cardNo As Integer ByVal channelPort As Integer diData As Integer As Integer Argument cardNo card number to select borad channelPort port of each channel PCI CHO PA CH1 s Port A PCI CHO PB CH1 s Port B PCI CHO PC CH1 s Port C PCI CHO PCU CH1 s Port C Upper Nibble PCI CHO PCL CH1 s Port C Low Nibble PCI CH1 PA CH2 s Port A PCI CH1 PB CH2 s Port B PCI CH1 PC CH2 s Port C 28 C C Software Libraries PCI CH1 PCU CH2 s Port C Upper Nibble PCI CH1 PCL CH2 s Port C Low Nibble PCI CH2 PA CH2 s Port A PCI CH2 PB CH2 s Port B PCI CH2 PC CH2 s Port C PCI CH2 PCU CH2 s Port C Upper Nibble PCI CH2 PCL CH2 s Port C Low Nibble PCI CH3 PA CH3 s Port A PCI CH3 PB CH3 s Port B PCI CH3 5 Port C PCI CH3 PCU
26. tal input amp output Industrial monitoring and control Digital I O control Contact closure switch keyboard monitoring Connects with OPTO 22 compatible modules Useful with A D and D A to implement a data acquisition amp control system 2 Introduction 1 3 Specifications 96 bit for PCI 7296 Logic High Voltage 2 0 V to 5 25V Logic Low Voltage 0 0 V to 0 80V Logic High Current 20 0 uA Logic Low Current 0 2 mA Output Signal Logic High Voltage Minimum 2 4 V Logic Low Voltage Maximum 0 5V Logic High Current 15 0 mA Logic Low Current 24 0 mA Bus O Power Consumption PCI 7248 without external 450mA 5VDC Typical devices 540mA 5VDC Maximum PCI 7296 600mA 5VDC Typical 750mA 5VDC Maximum Transfer Rate 500 K bytes sec Typical perd PCI 7248 147mm x 98 8mm PCI 7296 165mm x 98 8 mm Introduction 3 Installation This chapter describes how to install the 7248 or PCI 7296 At first the contents in the package and unpacking information that you should be careful are described 2 1 What Y ou Have In addition to this User s Manual the package includes the following items PCI 7248 48 bits Parallel Digital I O Card or 7296 96 bits Parallel Digital Card e Manual amp Software Utility CD If any of these items is missing or damaged contact the dealer from whom you purchased the product Save t
27. the application need only one IRQ you can disable one of the IRQ sources by software If your application do not need any IRQ source you can disable all the two interrupts However the PCI BIOS still assign a IRQ level to the PCI card and occupy the PC resource if you Operation Theorem 19 only disable the IRQ sources without change the initial condition of the PCI controller It is not suggested to re design the initial condition of the PCI card by users own application software If users want to disable the IRQ level user can use the ADLink s utility INIT7296 EXE to chage power on interrupt setting The table 3 3 4 shows the register format of the ISC address offset 20 This register is read only The 4 LSBs are used to control the source of INT1 and INT2 INT D3 D2 D1 DO IHQ Sources IRQ Trigger Condition Disable X Xx o O disable X X 0 1 PICO lingedgeofP1CO Mode 2 x 1 O PICOOR P1C3 see following INT2 D3 D2 D DO IRQ Sources Trigger Condition Disable o o X X INT2 disabe Mode 1 o 1 X edge of P2CO_ Mode 2 1 o X X P2C0 OR 2 see folowing Table 3 3 1 ISC register format When the IRQ sources is set as P1CO OR P1C3 the IRQ trigger conditions are summarized in table 3 3 2 1 2 0 High X Low PC3 U disable all IRQ X Low 1 50 fallin
28. transfer INT A to one of the AT 18 Operation Theorem bus IRQ levels The IRQ level is set by the PCI plug and play BIOS and saved in the PCI controller It is not necessary for users to set the IRQ level Users can get the IRQ level setting by software library Refer the section 4 5 1 1 amp P1C3 Event Counter 2 2 0 amp P2C3 Timer IRQ INT1 PCI INT Controller INT2 Flip Fig 3 3 1 Dual Interrupt System of PCI 7248 96 3 3 3 Dual Interrupt System The PCI controller of PCI 7248 96 can receive two hardware IRQ sources However a PCI controller can generate only one IRQ to PCI bus the two IRQ sources must be distinguished by ISR of the application software if the two IRQ are all used The application software can use the get PCI72 status function to distinguishe which interrupt is inserted After servicing an IRQ signal users must check if another IRQ is also assserted then clear current IRQ to allow the next IRQ coming in The two IRQs are named as INT1 and INT2 INT1 comes from P1CO P1C3 or the event counter interrupt INT2 comes from 2 0 P2C3 or the timer interrupt The sources of INT1 and INT2 is selectable by the Interrupt Source Control ISC Register 3 3 4 Interrupt Source Contorl There are four bits to control the IRQ sources of INT1 and INT2 The Table 3 3 1 shows the selection of the IRQ sources and the interrupt trigger conditions If
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