stm32f4-sdio/main.c

/*
 * main.c
 *
 *  Created on: Apr 25, 2015
 *      Author: mari
 */
#include <stm32f4xx.h>
#include <cmsis/arm_math.h>
#include <fatfs/ff.h>
#include <fatfs/diskio.h>
#include <uart/uart.h>
#include <stdio.h>

#define OUTPUT(pin)  (0b01 << (pin * 2))

FATFS SDfs;
FIL file;
DIR root;
volatile int w;

	DSTATUS SDIO_initialize();

int initreq = 0xFF;

int main() {
	char buff[100];
	char *name;
	FILINFO fno;
	RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
	__DSB();
	GPIOD->MODER |= OUTPUT(12) | OUTPUT(13);
	SysTick_Config(8*1680000);
	// f_mount(&SDfs, "0:/", 1);
	w = 0;
	initUART();
	setvbuf(stdout, NULL, _IONBF, 0);
	while(w<10);
	initreq = f_mount(&SDfs, "0:/", 1);
	while(initreq);

	initreq = f_opendir(&root, "/");
	if (initreq == FR_OK) {
		if (!f_readdir(&root, &fno))
		{
			name = fno.fname;
			initreq = f_open(&file, _T("test.txt"), FA_READ);
				if (initreq == FR_OK) {
					f_gets(buff, sizeof(buff), &file);
					printf("test.txt:\r\n%s\r\n", buff);
					f_close(&file);
				}

		}
	}
fflush(stdout);

while(1);


}


void SysTick_Handler()
{
	GPIOD->ODR ^= (1<<12);
	w++;
}