[Usbpicprog-technical] cant program the PIC

[Bálint G. <gye...@gm...>]

Hi,

I build the through-hole version of the usbpicprog. Everything looks
fine, but when I try to program a PIC, I get this:

Erasing before programming...
Erase OK
Write Code memory OK
Programming the data area of the PIC...
Write Data memory OK
Verifying all areas of the PIC...
Verify code failed at 0x0. Read: 0x00, Expected: 0x12
Programming configuration area of the PIC...
Error programming config memory

I tried it with two PICs, a 16F628 and a 16F84A, the programmer
detects both, but at programming the situation is the same.
I checked the circuit, it looks correct and the I/O test gives the
required voltages on every pins.
Could it be the problem that some of the mounted transistors
(bs170,bs250, bc547) can't provide enough current?

Thanks for the reply.

Best Regards,
Balint