MCUmall EPROM BIOS Chip Burner Forum
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 Using The Enhanced/Dual power Willem Programmer
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1 Posts

Posted - 03/27/2005 :  21:28:13  Show Profile  Reply with Quote
using duel powered willem
keep getting errors "error@0x000000 chip=0xff buffer=0x2f"
tring to program 27128.
seems to read fine.any ideas ??
Reply #1


28 Posts

Posted - 04/01/2005 :  00:40:23  Show Profile  Reply with Quote
It looks like the Vcc or Vpp not get enough high. Try to use a DC power adapter instead of USB power. And set the Vcc to 6.2V.

Also, confirm your 27128's Vpp setting is correct.
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