FATFS Port Note

How to use

main.cpp:

#include "ff.h"
#include "ff_gen_drv.h"
#include "sd_diskio.h"

extern "C" void SDIO_IO_Init();
char sd_path[4];

FATFS fatfs;

int main() {
    FATFS_LinkDriver(&SD_Driver, sd_path);
    SDIO_IO_Init();
    f_mount(&fatfs, sd_path, 1);
    while (1)
        ;
}

How to test

mbed test -n fatfs*

Note

In sd_diskio.c, a constructor function called SD_LinkDriver is implement.

Port Note

STM32 DMA should enable Tx&Rx both, then should enable SDIO IRQHandle. DMA Tx Mode should be like this:

hdma_sdio_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_sdio_tx.Init.MemBurst = DMA_MBURST_SINGLE;