please help i am using the dual power willem programer,i can do erace on a 27sf512 chip but when load bin from m27c256 in buffer and try to write chip iam getting oxoooooo chip =oxff buffer =0x22.can some 1 help me please
If you can confirm the erase chip is working, then the jumper setting for erasing is working. Did you set back the jumper for writing after erased chip?