Hello everybody.
I just bought Arduino Due board and was able to upload my first sketch, then tried to upload the second project sketch and it refused.I Went for erase and reset buttons, nothing happened. I am/was running on board Genuino, port COM1, Programmer USBTinyISP. My system is windows 8 and Below is my error.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x28