I have two arduino uno boards, one with the original atmega328 chip and one without a chip. I followed the directions here:
to burn the bootloader to a standalone chip but I couldn’t burn the bootloader on my Mac, however, it did work on my PC. Who knows why this is, if you have any insight I’d appreciate the help.
My real predicament follows:
I couldn’t get a sketch to upload by following the steps listed in the previous link. So, I followed the directions here:
to upload a sketch to a standalone atmega328P by holding down “shift” and not changing wiring and settings after burning the bootloader. This worked. I then install the standalone chip in my arduino uno board that does not have a chip and it runs the sketch that was uploaded previously. When I try and upload a new sketch I get this output:
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
The attachment shows the settings I have when uploading the new sketch and the upload error output.
Thanks for any help.