Post by thread:[a bit OT] GAL programmer schematic ?

Hello, I know that this question is a bit off-topic, but I spent several hours seeking the internet without any success. Please, can anybody tell me, where I can find some GAL (22V10 specifically) programmer schematics and software ? I tried to find some (or at least find the programming specs. for 22V10) and I was not succesfull. I only found ads for large expensive EPROM/EEPROM/PIC/GAL/FPGA/WholeUniverse programmers which costs megabucks and are overkill for me. Thanx a lot PavelK ************************************************************************** * Pavel Korensky * * DATOR3 LAN Services spol. s r.o. * * Modranska 1895/17, 143 00, Prague 4, Czech Republic * * * * PGP Key fingerprint: F3 E1 AE BC 34 18 CB A6 CC D0 DA 9E 79 03 41 D4 * * * * SUMMA SCIENTIA - NIHIL SCIRE * **************************************************************************

The reason you are having trouble finding anything is because the GAL manufacturers decided a long time ago not to release any information on programming to anyone other than the universal programmer boys. Personally I think this was a STUPID decision, but you do have some alternatives. There are a few designs for GAL programmers in older issues of Electronics Now and some of the UK magazines, but the problem is that I have never seen one for the 22V10, only the 16V8 and 20V8 devices. The other problem with these designs is that they invariably use a GAL in their design, which causes the proverbial chicken and-and-egg syndrome. Since these projects were published quite a few years ago, it is unlikely you can still buy the pre-programmed GAL's to build one. You should be able to get the source from the E/N web site though, and you might be able to find some kind soul locally to program it for you. If you can use something other than a 22V10, then the GAL manufacturers are more liberal with programming specs for their ISP devices, since the whole purpose behind these things is to be programmed in the field. I know it can is a bit expensive for a hobbyist, but I would recommend you bite the bullet and invest in a Needhams EMP-20 programmer, which handles several brands of 22V10 (the EMP-10 only works with Lattice 22V10's). For about $450 US you will get a programmer than you will probably never outgrow, and if you buy it from Digi-Key, they will throw in the PIC module for free (of course I discovered this AFTER I had bought mine somewhere else), which is a $25 US value. CIAO - Martin. ______________________________ Reply Separator _________________________________ Subject: [a bit OT] GAL programmer schematic ? Author: pic microcontroller discussion list <spam_OUTPICLISTTakeThisOuTMITVMA.MIT.EDU> at Internet Date: 6/10/98 4:06 PM Hello, I know that this question is a bit off-topic, but I spent several hours seeking the internet without any success. Please, can anybody tell me, where I can find some GAL (22V10 specifically) programmer schematics and software ? I tried to find some (or at least find the programming specs. for 22V10) and I was not succesfull. I only found ads for large expensive EPROM/EEPROM/PIC/GAL/FPGA/WholeUniverse programmers which costs megabucks and are overkill for me. Thanx a lot PavelK ************************************************************************** * Pavel Korensky * * DATOR3 LAN Services spol. s r.o. * * Modranska 1895/17, 143 00, Prague 4, Czech Republic * * * * PGP Key fingerprint: F3 E1 AE BC 34 18 CB A6 CC D0 DA 9E 79 03 41 D4 * * * * SUMMA SCIENTIA - NIHIL SCIRE * **************************************************************************

In message <.....m0yjlgx-000026CKILLspam@spam@chaos.dator3.anet.cz>, Pavel Korensky <pavelkKILLspamDATOR3.ANET.CZ> writes >Hello, > >I know that this question is a bit off-topic, but I spent several hours >seeking the internet without any success. >Please, can anybody tell me, where I can find some GAL (22V10 specifically) >programmer schematics and software ? >I tried to find some (or at least find the programming specs. for 22V10) >and I was not succesfull. >I only found ads for large expensive >EPROM/EEPROM/PIC/GAL/FPGA/WholeUniverse programmers which costs megabucks >and are overkill for me. The Lattice 22V10 is very easy to program via a simple parallel port interface. You can get a free CD-ROM with development software, data, etc. from Lattice distributors. It's really intended for their larger CPLDs, but the 22V10 is included. Leon -- Leon Heller: .....leonKILLspam.....lfheller.demon.co.uk http://www.lfheller.demon.co.uk Amateur Radio Callsign G1HSM Tel: +44 (0) 118 947 1424 See http://www.lfheller.demon.co.uk/dds.htm for details of my AD9850 DDS system. See " "/diy_dsp.htm for a simple DIY DSP ADSP-2104 system.

On Wed, 10 Jun 1998 16:06:57 +0200 Pavel Korensky <EraseMEpavelkspam_OUTTakeThisOuTDATOR3.ANET.CZ> writes: >EPROM/EEPROM/PIC/GAL/FPGA/WholeUniverse programmers which costs >megabucks >and are overkill for me. Not quite schematics, but there ARE some inexpensive programmers at JDR Microdevices (http://www.jdr.com). Harold _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866]

Pavel Korensky wrote: > where can I find some GAL (22V10 specifically) > programmer schematics and software ? Elektor magazine did one that did 16V8 and 20V8, and then did a kludge board for a 22V10. Which needed you to buy more software from them. Only did a few brands of these chips, which are now all but replaced by 22V10 chips. Manufacturers are not so motivated to make the smaller chips. Most hobbyists will only want a few chips, so a few pence more per chip is no problem, nor getting particular manufacturers chips. I'd suggest you use Lattice Logic's 22V10 chips. Lattice specialise in in-site serial programming so they have to be open about the programming specs. I'd expect these to be popular amongst hobbyists, as it should be as easy to make a programmer for them as hobbyist PIC programmers.

re: Lattice ispGAL22V10 To followup on Leon's comments, I've added a schematic for a buffered parallel port cable and programming board that allows you to program Lattice Semiconductor's ispLSI1016, ispLSI2032, and ispGAL22V10 devices. This is for folks that don't have Lattice's ISP Starter Kit. You can download the archive from my web page at: http://www.teleport.com/~thandley/Wilbure.htm To program their ispGAL22V10 all you need is the buffered cable which basically contains a 74HC367 and some passive components, and the ISP Daisy Chain Download software which is also on Lattice's web site. For more information about Lattice Semiconductor's products and to download the ISP Daisy Chain Download software and/or ISP Synario design software, contact: http://www.latticesemi.com - Tom At 05:44 PM 6/10/98 +0100, Leon Heller wrote: [snip] {Quote hidden}>The Lattice 22V10 is very easy to program via a simple parallel port >interface. You can get a free CD-ROM with development software, data, >etc. from Lattice distributors. It's really intended for their larger >CPLDs, but the 22V10 is included. > >Leon >-- >Leon Heller: leonspam_OUTlfheller.demon.co.uk http://www.lfheller.demon.co.uk >Amateur Radio Callsign G1HSM Tel: +44 (0) 118 947 1424 >See http://www.lfheller.demon.co.uk/dds.htm for details of my AD9850 >DDS system. See " "/diy_dsp.htm for a simple DIY DSP ADSP-2104 system. > >