Re: SPI pinout in avrlibc

I create the mappings and submit the patch if necessary. Just want to be
sure that’s the way to go.

On Wed, 21 Nov 2018 at 11:59 AM, Aurélien Vallée <[email protected]>
wrote:

> I wondered if the SPI pinout is available somewhere in avrlibc headers.
> The reason is that I need some code initializing SPI that should be
> portable across AVRs with different pins for SPI, e.g. atmega328 and
> atmega2560.
>
> It looks to me that these pins are partially mapped currently, as I can
> find things like:
>
> /usr/avr/include/avr/iom324pa.h:#define MOSI_DDR   DDRB
> /usr/avr/include/avr/iom324pa.h:#define MOSI_PORT  PORTB
> /usr/avr/include/avr/iom324pa.h:#define MOSI_PIN   PINB
> /usr/avr/include/avr/iom324pa.h:#define MOSI_BIT   5
>
> But that does not seems to be defined for all cores.
>
> Are these macros what I think they are?
> Is it expected that they are not defined for all cores?
> Should we map the missing ones?
>
> --
Aurélien Vallée
Phone +33 9 77 19 85 61

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