102 lines
1.8 KiB
C
102 lines
1.8 KiB
C
/*
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* main.c
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*
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* Created on: Apr 25, 2015
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* Author: mari
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*/
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#include <stm32f4xx.h>
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#include <cmsis/arm_math.h>
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#include <fatfs/ff.h>
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#include <fatfs/diskio.h>
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#include <uart/uart.h>
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#include <stdio.h>
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#include <stdint.h>
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#define OUTPUT(pin) (0x01 << (pin * 2))
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FATFS SDfs;
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FIL file;
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DIR root;
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volatile int w;
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volatile uint32_t sdio_wait;
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int initreq = 0xFF;
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int main() {
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char buff[1024];
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char *name;
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FILINFO fno;
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RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;
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__DSB();
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GPIOA->MODER |= OUTPUT(6) | OUTPUT(7);
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GPIOA->ODR |= (1<<7);
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SysTick_Config(8*1680000);
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// f_mount(&SDfs, "0:/", 1);
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w = 0;
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initUART();
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setvbuf(stdout, NULL, _IONBF, 0);
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//while(w<10);
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initreq = f_mount(&SDfs, "0:/", 1);
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while(initreq);
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initreq = f_opendir(&root, "/");
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if (initreq == FR_OK) {
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if (!f_readdir(&root, &fno))
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{
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name = fno.fname;
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initreq = f_open(&file, name, FA_READ);
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if (initreq == FR_OK) {
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f_gets(buff, sizeof(buff), &file);
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printf("%s:\r\n%s\r\n",name, buff);
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f_close(&file);
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}
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}
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}
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//fflush(stdout);
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while(1);
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}
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void HardFault_Handler(uint32_t *stack) {
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// unsigned int stacked_r0;
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// unsigned int stacked_r1;
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// unsigned int stacked_r2;
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// unsigned int stacked_r3;
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// unsigned int stacked_r12;
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// unsigned int stacked_lr;
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// unsigned int stacked_pc;
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// unsigned int stacked_psr;
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//
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// stacked_r0 = stack[0];
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// stacked_r1 = stack[1];
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// stacked_r2 = stack[2];
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// stacked_r3 = stack[3];
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//
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// stacked_r12 = stack[4];
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// stacked_lr = stack[5];
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// stacked_pc = stack[6];
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// stacked_psr = stack[7];
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GPIOA->MODER |= OUTPUT(6) | OUTPUT(7);
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GPIOA->ODR |= (1<<6) | (1<<7);
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while(1);
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}
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void SysTick_Handler()
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{
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GPIOA->ODR ^= (1<<6)|(1<<7);
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w++;
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sdio_wait++;
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}
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void SDIO_wait_ms(unsigned int i) {
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sdio_wait = 0;
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while(sdio_wait<i);
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}
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