RE: [avr-libc-dev] Re: [bug #25300] Additional i/o port names

[Weddington, Eric]

> -----Original Message-----
> From: 
> address@hidden 
> [mailto:address@hidden
> org] On Behalf Of Frédéric Nadeau
> Sent: Tuesday, April 14, 2009 9:11 AM
> To: address@hidden
> Subject: Re: [avr-libc-dev] Re: [bug #25300] Additional i/o port names
> 
> Hi there,
> 
> I'm running on an issue with at least ATtiny261 witch have
> configurable pin. It appears that: DI, SDA, DO, USCK, SCL can be
> configure on port A or B with a register. I might have missinterpret
> the datasheet though.

You are correct. There is a register setting to change which pin does which 
function.
 
> Any idea to work with that?

My suggestion is to leave out those definitions completely. If they are 
settable by the user, then we cannot make a hard-coded definition for that pin 
function. The user can define it themselves.

This is another reason to have a check for duplicate definitions as it may 
catch cases like this.