I thought this might be an issue with my AVR ISP MK2, but maybe not, maybe it's a problem with my Xmega128A4U's, so I thought I would post here as a last ditch plea for help ; )
I have recently installed Studio 7 and it upgraded my AVRISP Mk 2's to 1.18. Now I find I can't program any of my Xmega128A4U's. One of them is on a custom PCB that I have used to develop against for months in older version AS 6.2.
I can program my 256A3B breadboard just fine. But A4U get:
07:57:35: [ERROR] Failed to enter programming mode. Error status received from tool: Result received is 0x02., ModuleName: TCF (TCF command: Device:startSession failed.)"
Another A4U gets Result receives is 0x03.
I can read the voltage of the board fine and it looks correct.
I tried removing the 10k pullup on reset line. No difference. I tried rolling back to firmware 1.17 and AVR Studio 6.2. No difference.
I have no idea how to proceed. I hate to throw out my PCB design and go back to square 1 and design it around 256A3B just because I know it will program.
Thanks for any insights
Mike in Alaska