Added 'asm' target to dump elf as assembler. Changed to -Os by default to speed up programming times.
Tidied up some comments.
Added beginnings of 1wire interface. Cleaned up GPIO interface.
Turned off Os - was mucking up the delay loops. Added some flashing lights when you hit a hardfault handler.
Merge branch 'master' into dallas1wire
Buttons are active low. Moved GPIO_F0 unlock code.