42 lines
728 B
C
42 lines
728 B
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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#define OUTPUT(pin) (0b01 << (pin * 2))
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FATFS SDfs;
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FIL file;
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volatile int w;
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void SDIO_wait_cmd_sent();
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int SDIO_switch_appmode_CMD55();
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int SDIO_send_all_send_cid_CMD2();
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int SDIO_send_relative_address_CMD3(uint16_t* rca);
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int SDIO_send_go_idle_CMD0();
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int SDIO_send_block_length_CMD16(uint32_t blocklen);
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int SDIO_send_bus_width_ACMD6(uint8_t bus_width);
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int main() {
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RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
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__DSB();
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GPIOD->MODER |= OUTPUT(12);
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SysTick_Config(8*1680000);
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// f_mount(&SDfs, "0:/", 1);
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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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GPIOD->ODR ^= (1<<12);
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w++;
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}
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