| T O P I C R E V I E W |
| chaoticjelly |
Posted - 09/21/2005 : 19:36:51
I have the Willem Enhanced USB with some chip part numbers scratched off.
What im trying to do is program 27c801 EPROM.
I have everything connected correctly and a hardware test tests OK!
I have the chip in the socket, grooved edge facing to the top of the programmer board.
Im in PCB3 mode with the correct chip type selected as DEVICE.
I have set the jumper settings the same as the picture (BUT, the picture DIP switches are reversed.. mine are the other way round!!)
I have tried BOTH ways and neither produces a chip that has been written correctly.
I wrote one chip IM NOT SURE HOW.. and its incorrect.
Sometimes I get an error message "Error at 0x000000 Chip = 0x00 Buffer = 0x4c
When I "read" the chip... its blank!
I'm using Willem Eprom software 0.97ja
Am I doing something wrong???
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| 2 L A T E S T R E P L I E S (Newest First) |
| usb |
Posted - 09/27/2005 : 14:35:05
27C4096 need a 16bit EPROM adapter.
The software should stay in PCB3B and no special setting.
The OTP device only can be read since you can not erase it. |
| chaoticjelly |
Posted - 09/21/2005 : 20:17:55
Ok I found a post on another website and ive got it to program I think!
I had to set the DIP switches to the "Willem" setting picture.
I had to put jumper over pins 6+7 on the 8 pin block to the left of the DIP switches.
Programmed, verified OK
Does anyone have any tips for programming 16bit 27c4096as those are OTP and I dont want to mess them up! |
