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Hi
I have a willem pro4 ISP
When I want programming Pm49FL002T-33JC software Willem Eprom PCB5.0C (0.98D8) planted in PLCC32 which is given to the programmer. Electric ID is OK. Erase the shape in order. Reading of looks OK but the writing error 0x000001 Chip = 0x03 buffer = 0x07

Jumper:
JP10: up
JP11: down
JP7: up
JP8: down
JP6: down
JP9: down
Select version: up (98D5)
VPP: down
1-12: adjusted to the program
Power from USB

Please help with it already for a long time trap. Thanks.

What is blank check result after erase ?

EPROM erase nothing. But the program works as a erased.

EPROM erase nothing

?
SW command Action > Blank check. SW should report Device is blank or Error message.

But the program works as a erased.

Chip should be erased (blank, all 0xFF) before programming.
Programming works , will be in progress even on unerased chip, but verify will fail on first adress.