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;

void test(char a, char b, char c, char d, char e,char f, char g, char h, char i, char j);
void gna();
int main() {
	RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
	__DSB();
	GPIOD->MODER = OUTPUT(12);
	SysTick_Config(8*1680000);

	while(1);

}


void test(char a, char b, char c, char d, char e,char f, char g, char h, char i, char j)  {
	gna();
	//GPIOD->ODR ^= a+b+c+d+e+f+g+h+i+j;
}
void gna() {
	GPIOD->ODR = 0;
}
void SysTick_Handler()
{
	GPIOD->ODR ^= (1<<12);
}