Help with willem programmer

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midge
Posts: 1
Joined: Sat Nov 14, 2009 10:03 am

Help with willem programmer

Post by midge »

ok, im having some real problems using this, i have a few bin files (which have all worked for a friend off mine) the chip is a 27c256 so i set the switch's the right way, when i try to write the chip it said something about buffer at 00x08 and device at 00x00, after searching the internet endlessly i found that i needed to set the offset to 006000, this is so it writes the information in the correct place, so i do this, but when i check in the buffer the information does not start at 006000 like its ment to.

I have no idea what im doing wrong and its making my head hurt! also why does it point a big arrow at icsp? am i ment to do something with that? and ive seen people talk about a 'jumper switch' whats that? thanks! heres a pic, maybe someone can see what im doing wrong?

Image
starrd
Posts: 41
Joined: Mon Apr 11, 2005 4:12 pm

Post by starrd »

Firstly, don't worry about the ICSP - it is just for orientation - means nothing. Secondly, I can help, but you need to post a picture of your programmer in enough detail so I can see the jumpers etc. There are many types of Willem programmers and some have jumpers for a newer method of programming and need to be set correctly. Thirdly, what chip are you programming? is it erased? Some chips are electrically erasable and others have a UV window that require a UV eraser to empty them.
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