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--- notes:avr.programming [12/04/2012 00:51]
127.0.0.1 external edit
+++ notes:avr.programming [04/06/2016 12:31] (versione attuale)
alez [AVR Programming quick guide]
@@ Linea 5: / Linea 5: @@
 **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''