Hi there! I'm having issues programming by board. The dreaded:
avrdude: stk500v2_program_enable(): bad AVRISPmkII connection status: Unknown status 0x00
I'm using the avrispmkII and have re-milled another board without much luck. No shorts. Every VCC pin is reading correct 3.3V. The programming header is attached properly – connections confirmed with a multimeter. I'm starting to doubt my board design. Any thoughts?
(The jumper pictured below is a 0 ohm resistor)