Very Simple ICSP Programmer

[turman]

Hello everybody, I am new in this forum. The last week i programmed one 16f88, with my GTP USB LITE . I was my first time with this pic. I programed it with internal oscilator 8 MHz , and PB7 and PB6 , put high and low intermittently.

The problem was when i try to programmer other time. This fail, because the 16f88 enter in oscilation mode before programming mode.

How i can to resolve this ????

Thanks !

[pedja089]

Enable Vpp first, then Vdd on your programmer.