the tutorial here shows how to use the bit bang technique to burn the bootloader on to a chip:
http://www.geocities.jp/arduino_diecimila/bootloader/index_en.html
However, when it comes time to upload the sketch, it does it the conventional way through te USB
If I use the IDE to compile a .hex file of my program, can I use the same process to upload a sketch? Would I just select the right fuses and hex file?
The main reason is I want to breadboard a 644p chip and don't want to buy a FTDI cable to program them. From my understanding it shouldn't be a problem, but I just want to double check before I blow something (644p are 10 bux each!).
I know bohne made a few adjustments to the IDE to allow for this method on the Attinys (Luminet), but I don't want to dwell into modifiying the IDE yet for my method, as its only a one time thing.