I built a parallel port winpicprog based programmer using a given PCB. When i try to write data to the pic, I always recieve this error. {This never occers when the program is zero length }
Please help me. i cannot correct this error. i checked the voltage and it is ok (13v) what is this error for?
If you can, provide me the circuit diagram of this type programmer.
I don't know winpicprog but this almost certainly means the programmer couldn't make contact with the PIC. Most likely it failed to program in the first place, though it could also simply be unable to read-back.
This is unfortuantely a *broad* range of possible problems.
Does the PIC have +5v power? Is PGC/PGD wired up correctly? Bypass caps on Vdd/Vss? How long is your programming cable?