HCC-Embedded File System, USB and Bootloader Support for STM32 (Cortex M3)
FAT, SAFE-FAT and SAFE-Flash file systems are all available with drivers for the NAND flash controller and SDIO controller.
Also available are the Embedded USB device stack, supporting class drivers. Additionally failsafe bootloaders, with encryption options, which can load from the SD card, or from a PC via the USB .