Re: [avr-gcc-list] Code generation on 3.3

[Theodore A. Roth]

On Wed, 22 Jan 2003, Sander Pool wrote:

:)
:) Anyone who's coded for the USART on the m128 has run into this problem.
:) Convenient code samples from gcctest or elsewhere don't compile because the
:) registers have different names. I was thinking of writing an include file
:) that provides the
:) 'standard' non-numbered UART register symbols for the m128. Default would be
:) USART1 but a #define would turn it into USART0.
:)
:) This would make code portable accross more AVR types. Of course if you need
:) to use both USARTs or if you're a tad masochistic you can still use the
:) numbered registers :-)
:)

I started to do something about that but got vetoed:

  http://mail.nongnu.org/archive/html/avr-libc-dev/2002-12/msg00074.html

My opinion is that the library should abstract the subtle differences
between parts whenever it can. I know this isn't always possible, but
where it can be done, it would greatly ease the transition from a one
device to another.

Ted Roth

avr-gcc-list at http://avr1.org