MCUmall EPROM BIOS Chip Burner Forum
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 Using The Enhanced/Dual power Willem Programmer
 Cant program 2732's....HELP
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Posted - 06/06/2005 :  16:01:49  Show Profile  Reply with Quote
I have the dual power programmer and i cant get it to program my 2732 chips. It says chip read ok, verify ok, and device empty, but i get an error message when i try to program it. it says ERROR at 0x000000 CHIP= 0xFF Buffer=0x4A
Ive notice that 4a is the first set of numbers in my hex, and ive also noticed that the checksum isnt right when i load the bin into the program. How do i change the vpp? could this have something to do with it? I cant find the jumper settings anywhere on this site. HELP
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138 Posts

Posted - 06/07/2005 :  13:30:58  Show Profile  Reply with Quote
The 2732 needs 25V Vpp setting. Change the Vpp by set the JP5 and JP6.

The checksum in software is a simple-add-on checksum. As long as every time load the data you can get same checksum, then that is OK.

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