Hello. I am developing code the EVK1100 Eval Board using FreeRTOS and AVR32 Studio, and wanted to know if the SPI interface is thread-safe. Especially things like writing to the display, serial transaction, etc. Is the FreeRTOS SPI interafce threadsafe, or does each task need to implement resource-locking when dealing with the SPI interface?
No idea on that one I’m afraid. You would have to take a look at the Atmel Software Framework source code.