CCITT in C++ for AVR

Hi,

First of all - I'm a total newbie to AVR or other microcontrollers programming so forgive any mistakes I make.

I am making a school project for PocketPC which is to send some data to mechanic robots controlled by AVRs or other types of microcontrollers (mostly AVR). The data I send is own designed packet, which includes its own 16bit CRC. After some googling I found the CCITT ( poly 0x1021 with 0xFFFF init) and other types of 16bit CRCs (XModem, ARC) - I chose to go with CCITT, but still can go with other type if it makes it easier.

To the subject now - I have no idea what type of compilers are available for such microcontrollers (AVR etc). What I'd like to know is there any library with CCITT (or other) calculation function. I'm aware there are many source codes for that on the web, but I'd still would go with the library function (just easier for the people to use it) - the speed is not an issue. It's just easier to point other people to the lib function in the documentation instead of making them type some code I present in the doc.

Hope I made myself clear.
.

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