PIC18F4620 not Target Device

[kiwipiper]

Greetings,

I just got a PIC18F4620 in the mail and tried to program it.

I have the MeLabs U2 USB PIC Programmer attached to the MeLabs 840Z 40-Pin ZIF Adapter

I use MicroCode Studio to write the code in PBasic then I use compile and program. This then does a bunch of stuff and opens meProg. I then click Program and it does its stuff and programs the PIC (wonderful). It has been working great with the PIC16Fxxx's I have been using so far.

When I put the PIC18F4620 (Correct way as per diagram) I get an error message from the meProg. The error message is:

"Error: Target device does not match selected device."

Some Things It is Not:

I have PIC18F4620 in the selection box in both MicroCode Studio and meProg
Seems to complile fine in MicroCode Studio
I can read from the PIC in meProg

Other Information:

If I click Get Target Information in meProg I get the following.
- melabs U2 Programmer
- Firmware version is 4.8.
- Target device ID is FFFF
- Target device does not match selected device.

Anyone have any ideas

Cheers Bruce

[Bruce]

Is the ribbon cable from programmer to 840Z ZIF plugged into the header on the ZIF
socket where it's marked 28-40 pin Connection?

[kiwipiper]

Of Course..... how could I miss that. To much staring at computer screens, I am going blind. Thanks again for the quick and perfect answer. I do appreciate the advice and hopefully will one day build up enough knowledge to be able add some value to this excellent forum.

Cheers Bruce