xxxajk
Senior Member

It's used to generate an 8MHz signal on pin 9. You can comment this stuff out if your board has a crystal.

Never used 328 much, too limited for what my clients need. Weakest MCU used by my clients is the mega2560.

Yeah, and if you want a better, non-screwedup bootloader, that has the ability to write flash (Only tested on the 2560) go here: https://github.com/xxxajk/Arduino-stk500v2-bootloader I still need to write the...

Pin assignment doesn't matter on the host, only the target really matters. Here's a starting point for you, that uploads a bootloader, it's pretty easy to modify to upload program only....

Yes, this is totally possible. I have a similar set of tools that I have made for mass programming. The bigger question is are you wanting to burn a bootloader, program only, or both? For program only, with a...