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Elektor EPROM Emulator flaky

J

Jack

Jan 1, 1970
0
I constructed the EPROM Emulator published in Elektor magazine in the
SEPTEMBER 1992 issue. It worked quite well under Win98, but lately I
started using it on a HP Compaq nx9010 Pentium 4 laptop using WinXP,
and am getting inconsistent results. The downloading of code into the
target works successfully 1 out of 10 attempts. When the download
fails, the download LED flickers on and off. When the download was
successful, the LED stayed on continuously.

Any ideas? I tried changing the parallel port mode on the laptop to
Output Only, Bidirectional, EPP and ECP but no change.

Thanks
 
P

petrus bitbyter

Jan 1, 1970
0
Jack said:
I constructed the EPROM Emulator published in Elektor magazine in the
SEPTEMBER 1992 issue. It worked quite well under Win98, but lately I
started using it on a HP Compaq nx9010 Pentium 4 laptop using WinXP,
and am getting inconsistent results. The downloading of code into the
target works successfully 1 out of 10 attempts. When the download
fails, the download LED flickers on and off. When the download was
successful, the LED stayed on continuously.

Any ideas? I tried changing the parallel port mode on the laptop to
Output Only, Bidirectional, EPP and ECP but no change.

Thanks

You did not tell what kind of software you're using more specific what
driver. As in 1992 both WIN95 and WIN98 were still in the future, the
original driver may have been a .DLL for WIN3.x. Can't imagine such a thing
to run on WINXP. But there are also a lot of WIN9x programs - particularly
drivers - that do not run well on WINXP. You may check the Elektor website
for usable driver.

petrus bitbyter.
 

costipro

Sep 4, 2009
1
Joined
Sep 4, 2009
Messages
1
Eprom emulator

I want to get the eprom emulator schematic.
Who can help me with this?
Thank you
 
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