maniacbug:
By the way, I found a bootloader posted here with source: Ryan M Sutton - Arduino bootloader for Atmega 1284PThis week I am going to try and bring up a 1284p, and this looks like what I'll start with right now.
Let me know how you get on. I tried that one but no luck for me. I've tried several and I don't believe they are all bad so it must be something I am doing or not doing. Hard to figure out what when uploading sketches works but bootloaders don't.