Closer, but.......
OK, I got Atmega_Board_Programmer to compile, but it won't upload to the new Arduino Uno. I get this when I try to upload using the Arduino environment:
Binary sketch size: 24,106 bytes (of a 32,256 byte maximum)
avrdude: verification error, first mismatch at byte 0x2180
0xff != 0xb8
avrdude: verification error; content mismatch
I have tried different baud rates, cables and com ports. I CAN upload other sketches to the new Arduino like blink without issue.
Looking at one of your other posts and trying this script to talk to the new Arduino, I get
avrdude -P COM3 -b 19200 -c avrisp -p m8 –n
avrdude: stk500_getsync<>:not in sync: resp=0x30
What are my next steps?
Tom