Re: [avr-gcc-list] Embedded C programming and the Atmel AVR

[E. Weddington]

Geoffrey Wossum wrote:

> On Wed, 2005-04-27 at 06:51 -0600, E. Weddington wrote:
>  
>
> > Tim wrote:
> >
> >    
> >
> > > Do you know of an easy way of knowing differences between CodeVision and GCC so 
> > > that I may still use this book? Do you know of any good books that focus on GCC 
> > > C, since this is the compiler I want to use?
> > >
> > >
> > >
> > >      
> > There is no easy way of knowing the difference between the two 
> > compilers, other than reading their user manuals.
> >    
>
> There's a much easier way than that.  Type the code in and see what
> happens.  
Oh, well sure! :-)

> My manager uses IAR and I use avr-gcc.  Most of the
> differences that I see between those two compilers result in compile
> time errors, which is a good sign that "Hey, I've found a difference!"
> A glance over the avr-libc FAQ or a quick Google will then hopefully
> tell you how to translate the code.  If not, there's always the list.
>
> On a related note, it might be useful to have a "(Codevision|IAR)
> Programmer's Guide to avr-gcc" or a "(Codevision|IAR) to avr-gcc Porting
> Guide".  I don't think such documents exist, do they?
>
>  

No, such documents do not exist. I would be very happy to include it in 
WinAVR if such documents were written. What would be better still, if 
there were some automatic convertors, for IAR C and Assembly to AVR GCC, 
for CodeVision C and Assembly to AVR GCC, and Atmel Assembly to AVR GCC.

Eric