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>

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

FATFS SDfs;
FIL file;
volatile int w;

void SDIO_wait_cmd_sent();
int SDIO_switch_appmode_CMD55();
int SDIO_send_all_send_cid_CMD2();
int SDIO_send_relative_address_CMD3(uint16_t* rca);
int SDIO_send_go_idle_CMD0();

int SDIO_send_block_length_CMD16(uint32_t blocklen);
int SDIO_send_bus_width_ACMD6(uint8_t bus_width);

int main() {
	RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
	__DSB();
	GPIOD->MODER |= OUTPUT(12);
	SysTick_Config(8*1680000);
	// f_mount(&SDfs, "0:/", 1);
	while(1);

}


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