What is the best C compiler for AVR?

[maziar]

post compile optimizer

i try select best c compile for avr for :

1. optimization (Size & Speed) [most important]
2. Bug free
3. good library
4. popular
5. good IDE

which of c compiler avr is better ? can help in compare ?

 

[ramesh]

Re: Best C compiler for AVR

Most compilers are nearly bug free. But very difficult to expect and ensure zero bugs? Only by using!

 

[C-Man]

Re: Best C compiler for AVR

Also look here:
**broken link removed**

best regards

 

[sadat007]

Re: Best C compiler for AVR

GCC C compiler have power full libs, no experience

 

[7rots51]

Re: Best C compiler for AVR

I worked with im@gecraft but its IDE is not good,I can say it have no IDE!

I think I@R c c0mpiler is the best for @VR.But you can not find a compiler of @vr Like as KKKKKeeeeeiiiillllll for 8o51.


bye

 

[tvdd43]

Re: Best C compiler for AVR

I think that I@R C compiler is a good choice

 

[ME]

I would choose IAR or CodeVision.

 

[petertang]

Re: Best C compiler for AVR

If your code is not big, use codevision. Otherwise use IAR.

 

[konglong]

My opinion is -->Codevision

 

[andyyau]

Re: Best C compiler for AVR

My experience,

a program for AVR Tiny26

Imagecraft: code size 83%

IAR: 61%

See the difference?

 

[ramesh]

Re: Best C compiler for AVR

Hi andyyau
Did you check with Imagecraft Professional or Standard Version?
The Professional version incorporates code optimization and claims about 15% code size reduction!

 

[maziar]

Re: Best C compiler for AVR

My experience,

a program for AVR Tiny26

Imagecraft: code size 83%

IAR: 61%

See the difference?

please more comment
i no undestand Iar better or imagecraft for optimization ?

 

[ME]

Re: Best C compiler for AVR

My experience,

a program for AVR Tiny26

Imagecraft: code size 83%

IAR: 61%

See the difference?

please more comment
i no undestand Iar better or imagecraft for optimization ?

I guess he means that his program ueses 83% of the Flash mem when he compiles it with Imagecraft and 61% when compiled with IAR.
So IAR makes the most compact code of the two, at least in this case.

I don't know how CodeVision compares to these two compilers.

 

[robotman]

Re: Best C compiler for AVR

What ramesh is refering to is the version of im@gecraft. The pro version has a post compile optimizer, the standard version does not. If he compiled under the standard version, that might be the size discrepancy. At one point in time, I looked at the difference in the generation of the two different versions. It was just an easy way of generating more money.

As for my two cents, I have used GCC and Im@gecraft. I would pick Im@gecraft any day of the week. GCC has so many quirks. If the code is not written just right (and I am referring to how the compiler wants to see it, not C standard) all sorts of unexpected things happen.

robotman