MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 trouble writing 93c86 with gq-3x re-1.40		  New Topic  Reply to Topic
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k0mpresd

17 Posts
Posted - 05/04/2009 :  17:15:42  Show Profile  Reply with Quote
reads ok but just writes a bunch of ff's and a few random characters. tried 2 different adapters, same problem. also tried each 93c86 eeprom listed in software. none write ok. having to use para willem to write chip.

solution?

edit: used -2 speed and device programmed ok.
Edited by - k0mpresd on 05/04/2009 17:51:25
Reply #1

ZLM

2945 Posts
Posted - 05/04/2009 :  18:19:29  Show Profile  Reply with Quote
It seems the chip is sensitive to the speed.

Use "-2" speed then if it works on this speed.
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Reply #2

k0mpresd

17 Posts
Posted - 05/04/2009 :  18:58:55  Show Profile  Reply with Quote
thanks for the reply. device has been programming ok each time at 0 speed and by selecting at93c86 device. cheers.
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