here are some useful libraries I wrote for them. to use them, you need to :
- include a peripheral driver according to the library (e.g. i2c_handler). these libraries are just general purpose drivers for various peripherals. they are not specific to libraries provided. you may use them for other things too. and they are written in a similar syntax to other drivers like those of provided by atmel for its AVRs.
- include the library in your project.
- read the header files and the example project to find out what you got and how to use them.