I am aware I can address eg. DDRB register by name, but I want to access the registers by number, essentially reading /writing directly to an I/O register (eg. port 0x04 for DDRB). I want to do this in a loop (and I want to be able to initiate it from the attached PC). How can I read or write dire…

Addressing ATmega registers by number

system April 29, 2012, 3:30pm 10

@Grumpy_Mike: Compiles too! I was searching the source codes for what _SFR_IO8 exactly does, possibly it just does your little trick.

Thnx.

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