Hi,
I'm working on a project to get a C64 emulator running on the Papilio DUO. I have a working setup using uno2iec program to emulate the disk drive, but this still requires a laptop connected to the board.
I found a project named sd2iec, that uses the SD card to load disk images of, but the compiled program is too big to fit on the ATMega32U4 together with a bootloader. So I need a way to program the AVR directly.
I Googled for documentation on how to use the bootloader program routine to upload my software as well, but couldn't find any.
Is there a way to program the AVR on the Papilio DUO without bootloader via USB using for example avrdude?
Kind regards, Paul