Basic stdio API tests
FreeRTOS+TCP and FreeRTOS+FAT Examples

Some FreeRTOS+FAT demo projects make use of the vStdioWithCWDTest() function to perform some basic sanity tests on the embedded FAT file system, using the standard stdio API.

vStdioWithCWDTest() is implemented in /FreeRTOS-Plus/Demo/Common/FreeRTOS_Plus_FAT_Demos/test/ff_stdio_tests_with_cwd.c, its implementation can serve as a useful reference.