The text file doesn't mention any particular model numbers, it just lists "NI", along with others. I want to make sure that the NI GPIB-232CV-A will work with the other firmware. Has anyone done this specific model?
Joe Gray W5JG On Sun, Mar 18, 2012 at 8:38 AM, paul swed <[email protected]> wrote: > Hello to the group. > Indeed the prom changes the behavior to a full controller and the ones I > listed were changed and worked. Because those were the units I had found > over the years. > No idea about this particular prom and such. > Regards > Paul > WB8TSL > > On Sun, Mar 18, 2012 at 10:12 AM, J. L. Trantham <[email protected]> wrote: > >> Joe, >> >> The NI GPIB-232CV-A uses an ST M27C256B-15C1 One Time PROM in a PLCC 32 pin >> package. However, a Winbond W27E257 EEPROM is a pin for pin substitute. >> The M27C256B and the W27E257 both come in a 28 pin DIP package (0.6 >> spacing) >> so you should be able to use a programmer with that chip support and a DIP >> to PLCC adapter, wired appropriately, to do the programming. The 28 pin >> DIP >> packages are UV erasable. I've never seen a PLCC UV erasable package. Do >> they exist? >> >> In any event, I can program the chip for you if needed. I have some spare >> W27E257P-10 chips and can burn one for you as well and send it to you if >> needed. I am in Northwest Florida. >> >> Joe >> >> >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On >> Behalf Of Joseph Gray >> Sent: Sunday, March 18, 2012 2:18 AM >> To: Discussion of precise time and frequency measurement >> Subject: [time-nuts] IOTECH 488 EPROM >> >> The text file accompanying the EPROM file on KO4BB's site mentions >> using this EPROM image with a NI controller. I have a NI GPIB-232CV-A. >> Can I use the image with this controller? If so, I assume that I then >> have the equivalent of an IOTECH controller? >> >> I partially disassembled my GPIB-232CV-A and from peering between the >> boards, it looks like the EPROM is a PLCC. I can't burn one of those. >> If I can use this image with my controller, can someone burn a chip >> for me? I'll pay for the chip and shipping, of course. >> >> Joe Gray >> W5JG >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
