I ported freeRTOS to the ImageCraft compiler for use on the ATmega128 several years ago. The port now includes the ATmega128X and ATmega256X chips. I use the STK500 for the ATmega128X testing and the STK600 for the ATmega256X testing. Other chips will be included as I purchase and test them.
What are the requirements for inclusion in the supported distribution of freeRTOS?