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Last Post 18 Apr 2005 04:35 PM by  Anonymous
Replacing program in flash
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caande
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14 Apr 2005 03:00 AM
    I need to replace the program loaded in the flash of the card with my own.

    I then need to debug this program with my Lauterbach Trace32.
    When I try to program the flash with the Lauterbach the program returns a flash erase or program error.

    I then checked the VPEN pin on the flash and found out that this pin is controlled by the cpld. During my tries to program and erase this pin stays low. This mean that the flash cannot be programmed.

    Does anyone know of a way to control this pin?
    Anonymous
    Posts:


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    18 Apr 2005 04:35 PM
    Carl,

    Please reference section 3.1.7 of the LH7A404 IO Controller Spec. The
    FPEN (Flash program enable) bit needs to be set to 1, as you've
    indicated. I've linked the spec below, please let me know if you have
    any further questions regarding this.

    http://www.logicpd.com/do...4/70000234_Rev_D.pdf

    Thanks,

    Forums NXP SOMs and Development Kits LH7A404 Card Engine and Development Kit
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