icePROM User Manual
Contents
1. 1pt1 lpt2 lpt3 default lpt1 p 0x lt IO address gt 1 lt loadtype gt ihex mots or bin d lt device gt 29040 7271 2size s lt address bits gt 13 to 20 default 19 f 0x lt fi11 byte gt fill before downloading o 0x lt address offset gt abort on overflow ow 0x lt address offset gt wrap on overflow od 0Ox lt address offset gt discard on overflow a 0x lt start gt 0x lt end gt address region c lt number contiguous memories gt must specify before width w w lt bus width gt lt base gt lt icu gt lt base gt lt icu gt J r 33 RAM Emulation through pin33 u0 1 start transparent update ul 1 asynchronous update u2 0x lt trigger address gt synchronous when trigger hit i 0x lt trigger address gt Virtual PortPins single address i 0x lt a1 gt 0x lt a2 gt 0x lt a3 gt 0x lt a4 gt Virtual PortPins four addresses n lt power control gt 1 IgnoreCE 2 IgnoreA19 gt NOTE Since the port to Unix only the Unix be used for options 2 1 1 File Name lt filename gt is the file with extension to be downloaded It is the only mandatory parameter 2 1 2 Message Level There are four message levels 13 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie hitp www incept ie icePROM User Manual Revision 22. icePROM User Manual If you have any problems downloading the icePROM software lt 100kBytes from our website or you do not have Internet access please contact us by phone fax or Email We will immediately Email the software to you or send you a diskette by post icePROM User Manual Revision 2 52 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie http www incept ie INSTALLING THE ICEPROM 1 1 icePROM Delivery 1 2 Pinouts 1 DEV DI COBO secteteessenetencnesl T OO E TAE ERIC O Bi sot AOE T EEE AO E T EEA L23 DO AAA e e eee ee a e e eee DAT COT AA O AA 1 3 Hardware Installation 1 3 1 28 and 24 pin EPROMS oocccooccconcncnonccnonccnonccnonacnnnoss 1 3 2 TSOP PSOP PLCC BGA packages 1 4 Software Installation 1 4 1 Windows B 1X oooonnncccccnnnnnnnnncccccnnnnnnnnnnorocononononono 1 4 2 Windows 95 98 2000 cccccccnnnnccccccnnnnnonanicicncnnnanonono 1 4 3 Windows NT ornata e TRES 1 4 4 O CO 1 4 5 TR 1 4 6 O CEE DOWNLOADING 2 1 Download Command 2 1 1 File Name ice vies oui ooh ias 2 1 2 Message Level ein netoa e a eE eden tht es 2 1 3 M ELDOSE vot tendo dob Selec ot encaceeedenec E E eels 2 1 4 Quiles fete et e a ee oe 2 1 5 TUDO seh sSehoc ot cnet e ed a o e 2 1 6 Ha e a o e et O E 2 1 6 Download Port c cccooonnnccnccncncnnnnnocccncnnnononanicicinnnnns 2 1 7 Download Type c ooooccooocccncooccncn
3. line is used as the WE not write enable line This option can only be used with 21 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 Version 4 or 5 icePROMs If the r option is used then the WE line is one of the free pins on the icePROM depending on which device is being emulated See 1 2 Pinouts for precise information 2 1 17 Power Control amp Access Speed The 45 and 60 ns icePROMs use very fast SRAMs which draw a lot of current while enabled i e their CE pin is held low To reduce power consumption the icePROM holds the CE pin low only when absolutely necessary It will being the CE pin low only if the icePROMs CE pin is low Also if emulating a 8Mb device A19 selects which RAM is enabled as each RAM emulates a block of 4Mb The CE signal is often generated by address decoding logic external to the CPU Therefore this signal might be somewhat delayed relative to the other address lines If the n 1 option is used then the RAMs are always enabled This makes the icePROM draw considerable more power but makes the timing of the CE signal irrelevant The propagation delay from A19 to the RAM enable signals is about 3 ns worse than from the other address lines to the RAM address lines If the n 2 option is used then both RAMs will always be e
4. t want to give setuid root privilege to iceprom the second fast method is through the device driver dev port Users need write privilege to dev port so ask the superuser to Chmod o rw dev port The slowest method is through dev lp 0 1 2 Ask the superuser to Chmod o rw dev lp 1 4 5 FreeBSD The icePROM software will not work in an MS DOS box under FreeBSD The FreeBSD native version is a single executable If running it as a normal user you must have write access to the driver dev io Ask the superuser to Chmod o rw dev io 1 4 6 Unix We can offer the icePROM software on most Unix machines with a parallel port Please contact us if you require such a version 12 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 Downloading 2 1 Download Command A binary file lt filename gt bin will be downloaded to a 512kx8 EPROM e g a 27040 connected to LPT1 with the following command iceprom lt filename gt bin The syntax of the icePROM command is as follows Usage iceprom lt filename gt with extension m e w n v message level default normal error warning normal verbose aap verbose same as m v q no bell on failure Lyn turbo faster download h Halt wait for user to exit p lpt lt num gt
5. DIP32 package can be configured to emulate a number of pinouts In General the standard 27C080 27C040 pinout is used by most of the adapters for flash devices in TSOP SO packages However some adapters such as the plcc32headA and sdip2headA provide a 1 to 1 mapping between the target pins and the icePROM pins and a different pinout must be selected to emulate the desired device 1 2 1 27C080 This emulates a 27C080 EPROM If RAM Emulation is used r 33 then the WE pin is pin33 the reset line The r options cannot be used with this pinout as pin 33 is the only free pin A19 lo 32 Vee A16 2 31 A18 A15 3 30 A17 A12 4 29 Al4 AT 5 28 Al13 A6 6 27 A8 AR wI 26 A9 A4 8 25 AlI AS 9 24 0E A2 10 23 A10 Al 11 22 CE AO 12 21 D7 DO 13 20 D6 D1 14 19 D5 D2 415 18 D4 Gnd 16 17 DI 1 2 2 27C040 This emulates a 27C040 EPROM or smaller sizes s by making the higher order address lines don t care If RAM Emulation is used r then the WE pin is pin1 or r 33 pin33 the reset line 5 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 WE 1o 32 Vcc A16 2 31 A18 A15 3 30 A17 A12 4 29 A14 A7 5 28 A13 A6 6 27 A8 A5 7 26 A9 A4 8 25 All A3 9 24 0E A2 10 23 A10 A1 PI 22 CE AO 12 21 D7 DO 13 20 D6 D1 14 19 D5 D2 15 18 D4 Gnd 1
6. Power from Target The icePROM is designed to operate with a wide variety of target voltages It can be used in systems operating between 3 0V and 5 25V and requires no user configuration This is achieved by powering the I O drivers in the icePROM from the target voltage The I O driver devices in the icePROM are specified to operate between 3 0V and 5 25V The core of the icePROM operates at 5 0V generated by a switching regulator The supply voltage to the icePROM whether taken from the target or from an external supply must be switched up to 5 0V We have observed that the 8Mb icePROM can draw upwards of 200mA from the target hardware when operating at 3 0V In fact the lower the target voltage the higher the current that will be drawn as it has to be stepped up to 5 0V to power the core of the icePROM If your target hardware will be stressed by providing so much supply current to the icePROM we would recommend that you supply the icePROM from an external power source Also the voltage regulator requires about 250mA after power up to begin regular operation This current will only be drawn for a few milliseconds after which the regular operating current will normally be much less 3 2 Operation below 3 0V We have tested icePROM operation extensively at voltages below 3 0V and have always observed correct behaviour at target voltages down to 1 5V This however is using one of the devices in the icePROM outside its recommended ope
7. download records Table 1 gives a graphic example of a wide contiguous download with address offsets The left column is the internal address within the icePROM The centre column shows the absolute address that will be downloaded to that location with no offset The right column shows the absolute address that will be downloaded to the location with an offset of 1 If an address region is specified with the a lt start gt lt end gt option only absolute addresses between start and end will be downloaded Bytes which fall outside this address range will be discarded without any warning or error message Furthermore no check is made that the download range is sensible The start and end address must be specified as unsigned hex constants preceded by Ox a 0x1000 0x1FFF specifies that only bytes between 1000H and 1FFFH will be downloaded An individual byte will be discarded if an address region is specified and Absolute Address lt Start Address or Absolute Address gt End Address 17 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM address Absolute Address offset 0 icePROM 1 00000 00002 00004 ffffc EEtTS icePROM 2 100000 100002 offset 1 100004 lffffc lffffe icePROM 3 200000 200002 1fffff 200001 200004 2ffffc 2ffffe 2
8. is 512kx8 The s option selects the number of address bits A 27256 is a 32kx8 or 256kbit device with address lines AO A14 To emulate it use the option s 15 2 1 10 Fill If the fill option is taken all icePROMs specified by the download command will have every location initialised to the constant specified The constant must be unsigned hex preceded by 0X and between 0 and 255 2 1 11 Contiguous Multiple iceP ROMs can be configured as contiguous memories With the size option the maximum address within each icePROM is defined It is 2 7 1 bytes The option c 3 s 19 configures three icePROMs as 4Mb contiguous memories Addresses from 0x000000 to Ox07FFFF will be downloaded to icePROM 1 Addresses from 0x080000 to OxOFFFFF will be downloaded to icePROM 2 Addresses from 0x100000 to 0x17FFFF will be downloaded to icePROM 3 The contiguous option may not be specified after the width has been specified Table 1 gives a graphic example of a wide contiguous download with address offsets 2 1 12 Width Multiple icePROMs can be configured for a wide bus The option w 2 configures two icePROM as a 16bit bus The odd bytes will be downloaded to icePROM 1 and the even bytes to icePROM 2 The w option can also be used to specify which icePROM to download to The full syntax of the w option is as follows w lt width gt lt BASE i1cePROM BASE i1cePROM If individual icePROMs are specifie
9. will not exit but will instead read the virtual port pins and report their state every time they change and the time since they last changed There is no way of exiting in this mode you must hit lt ctrl c gt or shut down the DOS window Every time the pins change they are reported with a line tttttttttt 3210 This is the 10 digit number of milliseconds since the last change followed by the state of the four pins We are planning a Win32 GUI that will display this information in a logic analyser type format 2 1 15 Device The icePROM is capable of emulating all standard 27 series EPROMs and most Flash devices with a suitable adaptor Some EEPROMs don t need adaptors their special features are taken care of in firmware The first special device currently taken care of this way is the 29040 in which A18 and A19 are swapped Downloading with the d 29040 option emulates this device The 7C271 is emulated with the d 7271 option The size option may not be used with these options This option can be used with icePROM versions 2 and 4 size 8Mb or the icePROM version 5 amp 7 NOTE RAM Emulation is now performed with the r 33 option The d ram33 option has been discontinued 2 1 16 RAM The icePROM can also emulate a RAM device Using the r 33 option a file is downloaded in the normal way Once the download is complete it emulates an EPROM of the specified size and with the same pinout as an EPROM but the reset
10. 00003 2ffffb 2ffffd icePROM address 000000 00001 00002 7fffe 7T LLFEL icePROM User Manual Absolute Address offset 0 icePROM 4 00001 00003 00005 FETO Tffff icePROM 5 100001 offset 1 100003 100005 1ffffd LEELET icePROM 6 200001 200003 200005 2ffffd 2fffff 200000 200002 200004 2ffffe 2ffffe Table 1 download mapping with w 2 c 3 s 19 Note 1 with an offset of 1 the handling of address 2fffff is dependant on which offset option is used o 2fffff will overflow and the downloaded will be terminated with an error condition od 1 2fffff will be discarded and a warning message printed ow 1 2fffff will wrap around to 0 An address offset can be specified with the o od or ow options The address offset is specified as a signed hex constant The address offset will be added to the absolute address for each byte Let s call this the load address The maximum address inside each icePROM is 28 1 There are Contiguous Width icePROMs so overflow address Contiguous Width 25 7 With no address offset specified load address absolute address With the o and od options 18 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 load add
11. 5 98 2000 The easiest way to invoke the icePROM load software from Windows 95 is to open an MS DOS box and invoke the icePROM software from the MS DOS prompt Alternatively it can be invoked with a single mouse click by creating a shortcut Start the Windows Explorer and select the iceprom exe executable Take the File menu from Explorer Take the option lt Create Shortcut gt A shortcut to icePROM is now created in the same directory as iceprom exe and will be selected by the explorer You can drag this shortcut to the desktop or to another folder Select the shortcut and click on the right mouse button An extra menu will open Take the option lt Properties gt and the Shortcut control panel will appear There are six tabs on the top of this panel The second tab is lt Program gt Select this tab There are now 6 lines you can fill in The third one down is lt Cmd Line gt If the iceprom software is installed in d utils this line will contain d utils iceprom exe You should add the parameters you would normally use to download your file e g d utils iceprom exe c work myproj myfile bin p lpt2 s 20 v Every time you click on this icon it will have the same effect as typing the above line from an MS DOS shell The text below the shortcut will say Shortcut to iceprom exe If you click on this text 10 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33
12. 52 The default is normal m n In this mode errors and warnings will come on the screen together with a single line download report Downloaded 1048576 bytes from binary x1024i01 bin in 4 99 Seconds The verbose m v option gives a download report The following command produced this report gt iceprom c x1024101 bin p lpt2 w 2 m v t icePROM Software for MS DOS Version 2 0 02 Sep 1997 Address bits 19 Device 512 kByte 4 Mbit 27040 Available core 471680 allocated 7 chunks of 65508 Bytes Outport takes 1 74 microseconds using repeat 0 delay 0 icePROM Hardware found on LPT2 at I O address 0278 BASE Unit at Position 1 Version 2 Serial Number 116 icePROM at Position 1 Version 2 Serial 145 Size 8Mb Access 80 0 ns icePROM at Position 2 Version 2 Serial 144 Size 8Mb Access 80 0 ns 454825 bytes read from file in 0 mSecs 454825 bytes downloaded in 2360 mSecs 454825 bytes read from file in 50 mSecs 454825 bytes downloaded in 2040 mSecs 138926 bytes read from file in 0 mSecs 138926 bytes downloaded in 600 mSecs Downloaded 1048576 bytes from binary x1024i01 bin in 5 05 Seconds If the message level is set to warning m w only warnings and errors will be reported If the message level is set to error m w errors will be reported warnings will be suppressed lt can be useful to suppress warnings if many locations are out of range with the od switch 2 1 3 Verbose The verbose v option gives a downlo
13. 6 17 D3 1 2 3 29F040 This emulates a 29F040 EEPROM d 29040 If RAM Emulation is used r then the WE pin is pin31 or r 33 pin33 the reset line A18 lo 32 Vcc Al6 2 31 WE A15 3 30 A17 A12 4 29 A14 A7 5 28 A13 A6 6 27 A8 A5 7 26 A9 A4 8 25 All A3 9 24 0E A2 10 23 A10 Al 11 22 CE AO 12 21 D7 DO 13 20 D6 D1 14 19 D5 D2 15 18 D4 Gnd 16 LF D3 1 2 4 7C271 This emulates a 7C271 EEPROM d 7271 If RAM Emulation is used r then the WE pin is pin 1 or r 33 pin33 the reset line The 7C271 is a 28 pin device so pins 1 2 31 32 are unused on the icePROM icePROM pin1 or 7C271 pin 1 is used as the WE pin WE 1 32 0 31 AY lo 28 Vcc A8 2 27 A10 A7 3 26 All A6 4 25 Al2 A5 5 24 A13 A4 6 23 A14 A3 7 22 CS1 A2 8 2L GS2 A1 9 20 CE AQ 10 19 D7 DO 11 18 D6 D1 12 17 D5 D2 13 16 D4 Gnd 14 15 D3 6 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 1 3 Hardware Installation The icePROM should be inserted into the target board as you would insert a normal EPROM Pin 1 is marked with a white 1 and is on the same side as the moon on earlier versions and the same side as the breaking wave on the newest versions The BASE unit which has a 25 pin D type connector should be plugged into either LPT1 LPT2 or LPT3 but not the se
14. 80 65 tech support incept ie hitp www incept ie icePROM User Manual Revision 2 52 not on the icon but on the actual text you can modify it You will probably want something more meaningful like Download myfile bin to icePROM 1 4 3 Windows NT The easiest way to invoke the icePROM load software from Windows NT is to open a command prompt box and invoke the icePROM software from the command prompt The first time you run the icePROM software it will detect that the GivelO device driver has not been installed and ask for permission to install it in the registry NOTE you will have to be a privileged user to install device drivers in the registry After installing the GivelO driver you must restart Windows NT to allow the driver to take effect It is now possible for any user to download to the icePROM You can also download with a single mouse click by creating a shortcut Start the Windows Explorer and select the iceprom exe executable Drag the icon onto the desktop and a shortcut is automatically created Select the shortcut and click on the right mouse button An extra menu will open Take the option lt Properties gt and the Shortcut control panel will appear There are seven tabs on the top of this panel The second tab is lt Shortcut gt Select this tab There are now 4 lines you can fill in The first one down is lt Target gt If the iceprom software is installed in d utils this line will contain d utils ic
15. This should be connected to the target s reset logic The default behaviour of the reset line is to be normally tri state but held low for the duration of the download Normally the icePROM powers itself from the target It can however be powered externally please see Chapter 3 for more details Please read Chapter 3 if you are operating the icePROM at low voltages 1 3 1 28 and 24 pin EPROMs If you wish to emulate EPROMs smaller than 32 pins pin 16 on the icePROM should be connected to GND For example to emulate a 27256 a 28 pin device pins 1 2 31 32 on the icePROM will not be connected and pin 16 on the icePROM is 7 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 connected to pin 14 on the target board When emulating a 28 pin device Vcc is connected to pin 30 on the icePROM and emulating a 24 pin device Vcc is connected to pin 28 Schottky diodes with a voltage drop of about 0 3V will connect Vcc on these pins to pin 32 Vcc of the icePROM If you are using the icePROM at 5 0V the voltage drop across the schottky diodes is insignificant but if using the icePROM below 3 3V it would be advisable to eliminate this voltage drop by connecting pin 32 directly to target Vcc Please read Chapter 3 for further details on low voltage operation 1 3 2 TSOP PSOP PLCC BGA pa
16. ad report The v option has been left in for compatibility Setting the message level to verbose m v has the same effect 2 1 4 Quite If a download fails for any of the following reasons a bell will be sounded to alert the user that the download was unsuccessful The download file could not be opened or was empty The icePROM hardware could not be found The icePROM hardware is a newer release than the download software The download failed due to checksum errors A download address is out of range P Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie http www incept ie icePROM User Manual Revision 2 52 No bell is sounded for syntax errors or bad options The bell can also be suppressed with the q option 2 1 5 Turbo The icePROM software downloads at 70 of maximum speed on fast PCs With the turbo t option the download is performed at the maximum possible speed This normally causes no problem but with certain PCs with very fast buses a race condition can occur causing the download to fail If this happens the download will be slowed and restarted We recommend you use the turbo option to get the fastest possible download but if this leads to download errors cease using it on any PCs that exhibit such a problem Please contact Incept technical support if the t option causes this effect We are intereste
17. and we will either Email the files to you or post diskettes as per your preference You will find the following files on the web site or diskette e DOS iceprom exe e WINNT iceprom exe 8 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 e LINUX iceprom exe e FREEBSD iceprom exe The DOS version can be used under MS DOS Windows3 1x Windows 95 Windows 98 and Windows 2000 It will not generate an error if you use it under Windows NT but will not work The Windows NT version can only execute from a Windows NT command prompt iceprom exe is the interface software for downloading It does not require access to any other files and does not have to be on your DOS path For example you may install iceprom exe as d utils iceprom exe If you are using a batch file or makefile for compiling and linking your target you can download after linking by inserting a line in your file as follows gt d utils iceprom lt filename gt bin where lt filename gt bin is the target binary file Of course you could also copy iceprom exe into a directory already on your path It is not necessary to modify config sys or autoexec bat 1 4 1 Windows 3 1x The easiest way to invoke the icePROM load software from Windows 3 1x is to open an MS DOS box and invoke the icePROM software from t
18. ation back in the initialisation state 2 4 Download Speed The icePROM can download 1MByte of binary or Intel hex in less than 5 seconds with a sufficiently fast PC During an intensive embedded software development a programmer might perform the operation of compiling linking and downloading many times per day Reducing this time as much as possible will result in a genuine increase in productivity both as a result of less frustration waiting for the compile link download sequence and of the time saved Typically all the objects in a project will be linked into an executable file which will then be converted into a binary file or other type of load file The executable and load files can be considered temporary files and can have a size of the order of Mbytes Transferring these files across a network can take time as well as unnecessarily loading the network 24 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 A performance improvement will be seen if the executable and load files are kept on local disks or ideally on RAM drives 25 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 Powering the icePROM 3 1
19. ause the odd bytes to go into icePROM 2 and the even bytes into icePROM 1 Table 1 gives a graphic demonstration of this effect 2 1 14 Virtual Port Pins The Version 5 amp 7 icePROM offers 4 virtual port pins 4 of the lines used for communicating between the BASE unit and the icePROM can be reconfigured as virtual port pins These pins will be set and reset when certain addresses are hit 19 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 within the icePROM These virtual port pins can be used in two ways Either you can set the trigger addresses at points of execution in the software or set the trigger addresses to unused memory within the icePROM and put dummy reads from these addresses into the software These pins can be viewed with a logic analyser or oscilloscope or their state can also be read by the PC The figure below shows the pin numbering looking into the holes on the 16 way header 16 141210 8 6 4 2 XXXXX XX XK XXKXX XX X Polarising plug 1513119 7 5 3 1 The Virtual Port Pins occupy the following positions VPPO VPP1 VPP2 VPP3 Gnd NOQAN Four trigger addresses are set with the download option i address1 address2 address3 address4 The four addresses must be even VPPO is set when address1 is hit and reset when address2 i
20. ckages We can supply an adapter enabling emulation of memory devices in TSOP PSOP PLCC and BGA packages In particular it is interesting to emulate Flash memory because while Flash can be reprogrammed in circuit this operation often takes minutes and during an intensive software debugging session the ultra fast download speed of the icePROM offers a significant advantage Please contact Incept your local distributor or check our web site for more information on this solution and the devices we support 14 Software Installation NOTE The version 5 amp 7 icePROM contains a RAM based FPGA The firmware for this FPGA is embedded in the software The FPGA firmware is only reloaded if the software detects it has not been loaded The FPGA firmware from one software release may not be compatible with another software release YOU SHOULD ALWAYS POWER DOWN THE icePROM TO ERASE THE FPGA BEFORE USING A NEW SOFTWARE VERSION TO ENSURE COMPATABILITY Most of our customers collect the download software from our web site saving us the trouble of preparing diskettes and saving you the trouble of disposing of them Please download the software you need from our page www incept ie upgrade There is no restriction on what who can download The icePROM software uncompressed is less than 100 kBytes and compressed about 40 kBytes It will normally download in less than one minute If you have difficulty downloading from our web site please contact us
21. d exactly width contiguous icePROMs must be in the list The following command c 2 s 19 w 1 1 2 1 1 will download addresses from 0x000000 to Ox07FFFF to the second icePROM on BASE 1 and from 0x080000 to 16 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 OxOFFFFF will be downloaded to the first iceP ROM on BASE 1 The contiguous option may not be specified after the width has been specified If both contiguous and width are greater than one then width is the more significant parameter For example if contiguous 3 and width 2 the even bytes will go into icePROMs 1 2 and 3 and the odd bytes will go into icePROMs 4 5 and 6 Table 1 gives a graphic demonstration of such a download 2 1 13 Address Regions and Offsets The icePROM software offers a powerful combination of address offsets and selected regions The concept becomes complex and potentially confusing with wide contiguous downloads For the purpose of address regions and offsets the file to be downloaded is considered to be a linear 8 bit file whether a binary file or ASCII file such as Intel Hex Each byte specified by the download file has an absolute address For a binary file the absolute address is the number of the byte within the file and for an ASCII file the absolute address is specified in the
22. d in eliminating this feature 2 1 6 Halt Normally the icePROM software exits after a successful download or a failure On WindowsNT and Windows95 a dos icon windows is closed after completion and you can t read the status report With the h option iceprom will not exit until you press return allowing you to examine the status report 2 1 6 Download Port The default parallel port is LPT1 You can download to LPT2 by specifying p Ipt2 and to LPT3 by p LPT3 The I O address of the parallel port is read from the BIOS segment or from the registry under Windows NT If you are using a port not recognised by the BIOS its I O address can be specified using the alternative form of the p parameter The I O address is entered directly in hexadecimal preceded by Ox e g p 0x3bc 2 1 7 Download Type By default the software inspects the download file and if it interprets it as Intel Hex or Motorola S format it downloads it as such and otherwise downloads it as a binary file You can however force it to be downloaded as a specific type with the I switch The switch l bin forces a binary download and l ihex forces an Intel Hex download l mots defines Motorola S records 15 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie hitp www incept ie icePROM User Manual Revision 2 52 2 1 9 Size The default size
23. eprom exe You should add the parameters you would normally use to download your file e g d lutilsliceprom exe c work myproj myfile bin p lpt2 s 20 v Every time you click on this icon it will have the same effect as typing the above line from a command prompt The text below the shortcut will say Shortcut to iceprom exe Select the shortcut and click on the right mouse button An extra menu will open Take the option lt Rename gt You can now modify the text You will probably want something more meaningful like Download myfile bin to icePROM 11 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie http www incept ie icePROM User Manual Revision 2 52 1 4 4 Linux The icePROM software will not work in an MS DOS box under Linux The Linux native version is a single executable which should ideally be installed with setuid root privilege Only the superuser can install images with root privilege If the iceprom image is run without setuid root privilege its download time will be many times as slow and will need write access to the parallel port device drivers If the superuser runs the iceprom image or an ordinary users runs it when it has setuid root privilege the ioperm system call allows direct access to the parallel port This is done with the following command Chown root iceprom Chmod s iceprom If you don
24. erted into the BASE unit and the other can be used for connecting external power The figure below shows the pin numbering looking from the bottom of the 16 way header 16 141210 8 6 4 2 XXXKXX XX XK XXXXXXXX Polarising plug 1513119 7 5 3 1 Cable Ground is pin 7 and external power is pin1 If the external power supply voltage Vexr is at least 0 4V higher than the target voltage Vian the only current drawn from the target is that required by the I O buffers of the icePROM If Vext is less than 0 4V higher than the target voltage Vtar then the current drawn from the target Irar will not be reduced but the icePROM will retain its data while the target is powered down There is no risk of the icePROM overdriving the voltage on the data pins while operating at low voltage if external power is supplied This external power is only used to drive the regulator supplying 5 0V to the icePROM core The I O buffers driving the data and reset lines are always powered from the target voltage irrespective of external power 27 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 Trouble shooting 4 1 icePROM not found We have noticed that sometimes the host PC may have problems communicating with the icePROM if the PC s parallel port has been configu
25. he MS DOS prompt Alternatively it can be invoked with a single mouse click by creating a new icon Open the program group into which you want to install the icePROM icon Take the File menu from the Windows program Manager Take the option lt New gt The lt New Program Object gt Dialog box is now opened By default the lt Program Item gt option is elected Click on the lt Ok gt button There are four fields than can be filled in The lt Description gt field is the text that will appear below the icon You will probably to enter something like Download myfile bin to icePROM The lt Command Line gt field should contain the absolute path of the icePROM download software including drive and the parameters you would normally use to download your file e g 9 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 d lutilsliceprom exe c work myproj myfile bin p lpt2 s 20 v Click lt Ok gt and the icePROM icon will now be created Every time you click on this icon it will have the same effect as typing the above line from an MS DOS shell If you wish to download different files or with different options you can copy this shortcut and change the command line and icon description Then click on the relevant icon to perform the download you want 1 4 2 Windows 9
26. it can be a problem with the cable Make sure that the cable is not coiled up as this greatly increases the crosstalk between the signals If this doesn t help try connecting the 16 way header closest to the icePROM into the BASE unit This greatly the amount of noise this cable can pick up If you are using a 16 or 32 bit icePROM it may always be necessary to use the closer header as a result of the loading effect of having multiple icePROMs sharing the 28 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 same communications bus 4 3 Supply current The current the icePROM draws is dependent on the speed at which it is being clocked and the supply voltage The icePROM can draw considerable current at very low voltages Please read Chapter 3 for more information on low voltage operation Some PCs will draw power from the icePROM if they are switched off while the icePROM is powered when the PC is switched off This only seems to happen with older PCs If you observe this effect make sure you always power down the icePROM or disconnect the BASE unit from the PC before switching the PC off 29 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie
27. nabled irregardless of the state of A19 This option also causes the icePROM to draw more power when in 8Mb s 20 mode 2 3 Transparent Update Transparent Update allows the user to modify the contents of memory while the CPU is executing This lets you modify data or even update a procedure without affecting the CPUs execution in any way This is achieved by using two RAMs inside the icePROM The CPU executes from one while the other is being updated Then they are swapped over There are two methods of performing the swap In asynchronous transparent update the switch is performed as soon as the download is finished In synchronous transparent update the switch is performed only when the CPU reads from a specific trigger address 2 3 1 Initialisation Both methods of transparent update start off with the same initialisation Downloading with the u0 option causes the same data to be loaded to both RAMS simultaneously Once the download is finished the icePROM emulates from the first RAM and the second RAM is kept offline 22 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie hitp www incept ie icePROM User Manual Revision 2 52 During initialisation the FPGA will be configured if necessary and information read from the internal EEPROM to check Version size serial number etc as per a normal download The software will check to ensu
28. noonnocnnoncnocnnnnnnnnnnnnnoss 2 1 9 SA A OE cheue S QAO CH ct Be toed A A Ae DI AA ES AS A AAA A A a e a a 2 1 13 Address Regions and OffSetS oooonnnncnonccnnncccnncnons 2 1 14 Virtual Port PINS ea riep ean esne erpen niar aeeaiei AAA A Neea N DATOS RAM tt aae aan en aae ae e Neo a eaa 2 1 17 Power Control amp Access Speed 2 3 Transparent Update 2 3 1 nitialisation innn n 2 352 Asynchronous Transparent Update 2 3 3 Synchronous Transparent Update 2 3 4 2 4 Download Speed POWERING THE ICEPROM 3 1 Power from Target Mixing Synchronous and Asynchronous Transparent Update icePROM User Manual Revision 2 52 26 26 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie http www incept ie 3 2 Operation below 3 0V 3 3 External Power TROUBLE SHOOTING 4 1 icePROM not found 4 2 Checksum errors 4 3 Supply current icePROM User Manual Revision 2 52 26 27 28 28 28 29 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie http www incept ie icePROM User Manual Revision 2 52 Installing the icePROM 1 1 icePROM Delivery The standard icePROM delivery consists of e The icePROM e BASE unit to connect to PC e BASE to icePROM cable e This manual 1 2 Pinouts The icePROM in its standard
29. ous transparent update allows you to guarantee that your target CPU will always read consistent data even if updating a whole table or inserting an entire procedure If the trigger address is chosen as being a safe address where the target is not accessing the data you want to change e g the location of instructions relating to the idle procedure in a multitasking system then you can be assured the switch occurred while the CPU was not reading the data being modified Synchronous transparent update is performed with the u2 Ox lt trigger address gt After initialisation the icePROM is emulating from the first RAM and the specified file is downloaded to the second RAM As soon as the target CPU is finished accessing the trigger address the icePROM will emulate from the second RAM and repeat the download to the first RAM Unlike asynchronous mode the RAMs are not switched a second time The next time the icePROM will download to the first RAM again while emulating from the second The switch will again be performed just after the trigger address has been accessed 23 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 and the file will be downloaded to the second RAM NOTE the trigger address is the actual address presented to the icePROM on its address bus If you are using add
30. rating conditions Incept has been in extensive contact with the designers of this device They acknowledge that it does perform well under these conditions and do not expect any problems however they cannot give a guarantee on this Likewise Incept anticipates that the icePROM will perform well in target systems powered at between 2 2V and 3 0V but does not guarantee performance or reliability in these circumstances If you are using the icePROM in a system operating below 2 7V with a high clock speed we recommend you always supply external power to avoid stressing the 26 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 voltage regulator which supplies the icePROM core 3 3 External Power The current drawn by the icePROM from the target can be reduced by connecting external power This can be done through the cable connecting the BASE unit and icePROM The red wire on this cable is not connected to the icePROM but stops just short of the 10 way header External power can be connected to this wire Ground must of course also be connected to the external power source The icePROM is connected through pin 16 to ground of the target system and this can be linked to ground on the external power source Alternatively there are two 16 way headers on this cable One will be ins
31. re that the icePROM is the correct version and size to perform the desired task During synchronous or asynchronous transparent update the FPGA will not be configured as this would cause emulation to cease briefly and the EEPROM also cannot be read Therefore information on the icePROMs will not be reported in verbose mode Also it will not be possible to check that the icePROMs are capable of performing the desired task This will not be a problem as you must use the same options such as width and size during the subsequent transparent updates It is also of course essential that you do run the initialisation phase before the transparent update phase Other options such as address offsets and selected region can be altered at will 2 3 2 Asynchronous Transparent Update Asynchronous transparent update is performed with the u1 option The icePROM is emulating from the first RAM and the specified file is downloaded to the second RAM The icePROM then emulates from the second RAM while the same download is performed to the first RAM The icePROM then switches to emulating from the first RAM again keeping the second offline There is a small risk of the target CPU reading inconsistent data if the switch is performed while the target CPU is accessing the data being modified e g if it is half way through reading a 32 bit value from 8 bit memory or all the values in a table are connected 2 3 3 Synchronous Transparent Update Synchron
32. red in one of the enhanced modes ECP or EPP If you observe a problem enter the PC s BIOS setup and disable enhanced mode capability for the parallel ports i e set it to standard or compatibility mode If you are using a card with extra parallel ports its mode is often configured with jumpers Set the card to be not bi directional and not 16 bit Check also that the icePROM is properly powered up and try connecting external power as described in section 3 3 You should also connect the BASE directly to the parallel port not through a dongle Many dongles get confused by the Mb s signalling between the PC and the icePROM Some printer drivers try to block direct access to the parallel port if they have been installed on it If you find running the icePROM software causes a print driver to give funny messages or the download is erratic try disabling any printer drivers connected to the parallel port you are using 4 2 Checksum errors Both the BASE unit and the icePROM maintain a checksum on each download packet and this is used to guarantee the download If any checksum errors occur the download is slowed and restarted If three checksum errors occur the download is aborted If checksum errors are occurring first check that the icePROM is properly powered If you are not sure about the stability of the power from your target board connect external power If there are only checksum errors from the icePROM not from the BASE unit
33. ress absolute address address offset With the ow option load address absolute address address offset overflow address An individual byte will be discarded if load address lt 0 or load address gt overflow address In this event with no offset or with the o option the download will be terminated and an error message printed With the od option a warning message will be generated specifying which bytes have been discarded This warning can be suppressed by setting the message level to error only m e Having determined the load address and decided whether a byte will be downloaded or not the following equations determine which icePROM and at which address within the icePROM a byte will be loaded to addressl load address width indexl addressl gt gt size address2 addressl index1 2 index2 indexl absolute address width contiguous index2 selects which icePROM the byte in question will be downloaded to Normally the selection is BASE 1 index2 4 icePROM 1 index2 4 However this ordering can be rearranged with the w option Address2 selects the address within the selected icePROM to which the byte in question will be downloaded If an address offset is not a multiple of the width then the offset will not only shift download addresses within the icePROM but also reorder which bytes go into which icePROM An offset of 1 with a width of 2 would c
34. ress offsets or wide downloads you will have to resolve a physical address on your target CPU to the address inside the icePROM This is because in a wide download all icePROMs will switch the RAMs simultaneously to ensure consistent data Therefore they must all be programmed with the same trigger address Synchronous transparent update works well with wide downloads but cannot work with contiguous downloads as it is not possible for all icePROMs to switch simultaneously If you only want to modify the contents of one bank of icePROMs in a contiguous arrangement at a time the download can be performed by treating each bank as a separate download using offsets and selected regions Synchronous transparent update can then be performed on each bank separately All icePROMs used in a synchronous transparent update must be on the same BASE unit This is also necessary to ensure the RAM switch occurs simultaneously in each icePROM 2 3 4 Mixing Synchronous and Asynchronous Transparent Update It is not anticipated that users will want to mix both modes If this is desired then synchronous transparent update can always be performed after asynchronous This is because asynchronous always leaves the icePROM in the same state as after initialisation i e emulating from the first RAM with the second RAM kept offline Synchronous transparent update must always be run an even number of times after initialisation or asynchronous to leave the icePROM emul
35. rial COM ports of the host PC The side to plug into the PC is the one farthest from the 16 way IDC connector The cable for communication between the BASE unit and the icePROM has two 16 way headers and one 10 way header The 10 way header should be plugged into the icePROM Either one of the 16 way headers should be plugged into the BASE unit If you are using multiple icePROMs to emulate a wide bus or contiguous memories you will have a cable with one 10 way header for each icePROM you use In this case the icePROM closest to the BASE unit is icePROM 1 the next one is icePROM 2 etc If you are using a desktop computer it is probably convenient to use the 16 way header at the end of the cable but if you are using a notebook it is more convenient to use the 16 way header 60 cm from the icePROM If you are sure you will not need the full length of this cable you can cut it at the first 16 way header NOTE the second sixteen way header can useful for connecting external power or examining debug signals If you have a limited number of parallel ports the BASE unit acts like a dongle in that you can connect additional peripherals to the back of the BASE unit Most dongles and peripherals can be used in this fashion even if the icePROM is not powered up The icePROM is capable of resetting the target automatically after downloading An additional wire with a micro crocodile clip on the end is provided on the cable going into the icePROM
36. s hit VPP1 is set when address1 1 is hit and reset when address2 1 is hit VPP2 is set when address3 is hit and reset when address4 is hit VPP3 is set when address3 1 is hit and reset when address4 1 is hit The addresses can also be specified as i address In this case address1 address address2 address 2 address3 address 4 address4 address 6 NOTE the trigger address is the actual address presented to the icePROM on its address bus If you are using address offsets or wide downloads you will have to resolve a physical address on your target CPU to the address inside the icePROM 20 Incept Ltd Innovation Centre National Technological Park Limerick IRELAND Tel 353 61 33 58 00 Fax 353 61 33 80 65 tech support incept ie _ http www incept ie icePROM User Manual Revision 2 52 If a wide download was performed then only one icePROM will be set up for Virtual Port Pins as they all share the same link to the BASE unit The icePROM set up for Virtual Port Pins is the first one in the download Unless the ordering has been rearranged with the long form of the w option this is the one closest to the BASE unit Normally the icePROM software exits after downloading If the i has been specified it will exit but will keep the data link between the icePROM and the BASE unit and PC active so the virtual port pins can be viewed with a logic analyser or oscilloscope If the h halt option is used the software
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