Hello all! It's been far, far, faaaaar too long. But I've been around, and I'm here again.
I'm partially through assembly of a 1000 amp IGBT controller, just the same as I was 2 years ago (gasp! Has it been that long!?).
What's the current firmware?
If I'm programming via USBtinyISP and avrdude, what file do I need? A .hex, .c, or .h?
My chip is 100% raw. Do I need a bootloader?
I have this board (not that it matters):
![](https://lh6.googleusercontent.com/-64fLHXvE25A/UYK9vRcA9YI/AAAAAAAADJ8/K6CSMFyRlG4/w1454-h818/IMG_00000049.jpg)