Hi I am using STM32F207 and Spansion S25FL128 as data stored area in board.There are two different projects in FreeRTOS website:FreeRTOS+FAT and FreeRTOS+FAT SL.I do not know the major difference between them.Which one is more suitable for me? Would you give me some advice? Thank you.

The two products are not related to each other. The ‘SL’ in “FreeRTOS+FAT SL” stands for Super Lean. “FreeRTOS+FAT SL” prioritizes code size and RAM size over speed and functionality (for example, you can only have one file open at a time). “FreeRTOS+FAT” is a more fully featured product that is also faster, but has a larger code size and uses more RAM.