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Elektor EPROM Emulator flaky

Discussion in 'General Electronics' started by Jack, Sep 16, 2004.

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  1. Jack

    Jack Guest

    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.

  2. 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.
  3. costipro


    Sep 4, 2009
    Eprom emulator

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