MCUmall EPROM BIOS Chip Burner Forum
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 Write error on AM29F400 !

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T O P I C    R E V I E W
2Fast Posted - 02/13/2008 : 06:36:28
Hi,
I have a problem to write a chip (AM29F400BT) by a psop44! It's the first chip who i write!

My adapter PSOP44 and the chip are well in place with marker! the switch "29F/28F" is on 29F, the other "3v/5v" is on the right! I don't mount A19 cable!

On the soft, i choose device "AM29F400(B)". I arrived to read the chip but i can't write it!
There is a message:
"write error:
Device write failed at address:0X000200, Buffer=0x38 Device=0xeb"

I have an other message in a log in red:
"Set the adapter to 5V jumper position."
2   L A T E S T    R E P L I E S    (Newest First)
2Fast Posted - 02/13/2008 : 13:35:10
Problem Solved!!
There was a bad connection between the socket and the chip!! I sandpaper the pins!! After, it was ok!!
2Fast Posted - 02/13/2008 : 07:40:31
I bock to 25%!
The erasing is good, the blank checking is good but the writting stop to 25% ("Device write failed at address: 0X020000,Buffer+0xfa Device=0x05")
I take device on "AM29F400(T)" and i use a power supply on DC!
Why the written stop to 25% whereas the erasing is full(I verified)!??

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