I have a project that utilizes the Atmega328P-PU chip (purchased with Arduino bootloader on it) and haven’t had any issues when i was using the external 16MHz resonator.
Recently I changed this to a 2MHz external resonator to reduce current draw. I went in and changed the fuse settings per the attached picture but wasn’t getting it to upload… I was getting sync errors during the upload.
Reading around on the forum it sounded like my upload speed may have gotten messed up since i changed the clock frequency… Taking a wild guess it from 57600 to 7200 (i.e. 16mhz/2Mhz = 8). It looks like it uploads fine but i did get a “non standard baud rate” message, but it all seems to work fine… Anything to worry about? I attached the upload message data as well.
upload_message.txt (53.2 KB)