====== AVR Programming quick guide ======

Quick guide useful for first approach or as a reference for commands, pinning, etc...

**The matter: upload a compiled code file (.hex) into the avr's flash memory.**

Use a Makefile to do all the work. Download it [[talks:avr-microcontrollers#makefile|here]].

In the makefile: 
  * change/add source files;
  * change your project name;
  * change part name (for example atmega16);
  * change programmer type and port.

Use ''make'' to compile, ''make hex'' to generate firmware in the format read by the programmer, ''make writeflash'' to program the AVR.

I have also added ''make fuse'' that should be adjusted in the Makefile, to write the fuse byte(s).
===== Notes =====

Atmega64 : remove compatibility flag when programming, otherwise lot of registers won't work and the code will crash.

i.e. extended fuse bits should be 0xFF

''avrdude -p m64 -P /dev/parport0 -c stk200 -U efuse:r:-:h''

will output 0xfd, so let's do

''avrdude -p m64 -P /dev/parport0 -c stk200 -U efuse:w:0xFF:m''