MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 GQQ-4X USB AT27C256R
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infobriank

USA
1 Posts

Posted - 01/18/2016 :  13:58:29  Show Profile  Reply with Quote
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.

Edited by - infobriank on 01/18/2016 14:02:56
Reply #1

anniel

2531 Posts

Posted - 01/18/2016 :  16:06:54  Show Profile  Reply with Quote
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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