MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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T O P I C    R E V I E W
infobriank Posted - 01/18/2016 : 13:58:29
I'm having a problem in writing to an AMTEL AT27C256R PROM. I keep getting a Write failed, Address 0x000000, Buffer=0x02 Device=0xFF error. I tried to write on 30 new chips. All of them can't be bad. Is there some magic to write on this chip?? Doesn't make a difference if I change the speed either.

EPROM Programmer software is 6.29 running under Windows XP.
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anniel Posted - 01/18/2016 : 16:06:54
Can you read the device ID?
Try with the latest software (6.38).

http://www.mcumall.com/downloads/download.asp?DownloadID=11


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