MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 TOP USB Programmer
 TOP2005 and Atmel AT22V10L
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Bill

USA
2 Posts

Posted - 06/06/2007 :  11:47:31  Show Profile  Reply with Quote
Hi,

I just purchased a TOP2005 for the sole purpose of copying a AT22V10L chip to repair a machine. When I put the AT22V10L chip in the programmer it reports back that it is blank and if I read it all I get are all 1's. I know the chip is not blank. I want to copy the program over to an ATF22V10. If I put an ATF22v10 chip in the machine it reads and writes it correctly. I tried the newest Topwin version and an old version. Any suggestions?
Reply #1

ZLM

2926 Posts

Posted - 06/08/2007 :  10:39:49  Show Profile  Reply with Quote
The chip been locked up?
If the chip been enabled the security bit, then you can not read.
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Reply #2

Bill

USA
2 Posts

Posted - 06/13/2007 :  10:26:26  Show Profile  Reply with Quote
Thanks for the post. I don't know anything about this burner but I would have thought that it would give me an error when I try to read the chip instead of saying it is blank.
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Reply #3

ZLM

2926 Posts

Posted - 06/13/2007 :  22:08:15  Show Profile  Reply with Quote
The lock bit can not be read out when reading normal reading.

This is chip's security feature.
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