PIC18F65J50 cant see by the ICD2 Clone

[javierpindter]

Hello every one. Im working with a PIC18F65J50 (VDD 3.3V) and the icd2 clone. The problem is that after many trials I could make the debugger see the pic, after the first attempt to download a dummy program the programmer could download it but fail the verification. Later I realice that the pic has the dummy program. After that I tried to connect the ICD2 to the pic but I couldnt. Does any one has any idea of what is going on. I use the https://ww1.microchip.com/downloads/en/DeviceDoc/39644l.pdf for connection.

Thanks in advance

 

[tijoseymathew]

hav u used the MCLR pin as digital I/O? if so reprogramming/verification becomes a bit problem.
if u hav done it u will hav to mak sure that the pic gets VPP before VDD condition. It can be done using a transistor

 

[javierpindter]

Thanks tijoseymathew, the MCLR is a stand alone pin. I will try your suggestion. Thanks for your quick answer