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

From: E. Weddington
Subject: Re: [avr-gcc-list] Embedded C programming and the Atmel AVR
Date: Wed, 27 Apr 2005 10:22:17 -0600
User-agent: Mozilla Thunderbird 1.0.2 (Windows/20050317)

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
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.


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