RE: [avr-libc-dev] Nice to have: XCK Definition

[Weddington, Eric]

> -----Original Message-----
> From: 
> address@hidden 
> [mailto:address@hidden
> org] On Behalf Of Frédéric Nadeau
> Sent: Tuesday, March 10, 2009 7:02 AM
> To: address@hidden
> Subject: Re: [avr-libc-dev] Nice to have: XCK Definition
> 
> The XMLs I have come from AVR Studio 4.16 build 628.
> 
> I forgot to mention, to overcome #define limitation, pin names that:

> - Ends with +(like AMP1+) will be named AMP1_P_DDR
> - Ends with -(like AMP1-) will be named AMP1_N_DDR

I like the above...

> - Start with '(like 'RESET, 'RD, 'SS, etc) will be named N_SS_DDR
 
but I'm not sure about this part.

The "not" part just shows that the pin is active low. We don't necessarily need 
that information in the pin name definition, do we? If we include it, it breaks 
up the naming pattern. I would lean towards just keeping it like so:
RESET_DDR
RESET_PORT
RESET_PIN
RESET_IDX
RD_DDR
RD_PORT
RD_PIN
RD_IDX
SS_DDR
SS_PORT
SS_PIN
SS_IDX
etc.

Eric