stm32单片机新手入门级程序源码及仿真截图，点亮LED并循环。

ID:408354 · 发表于 2018-10-19 11:42

#include"stdint.h"
#define GPIOC_CRL                      *(unsigned int*)(0x40010c00)
#define GPIOC_ODR                      *(unsigned int*)(0x40010c0c)
#define RCC_AFB2ENR             *(unsigned int*)(0x40021018)
#define SPEED 1000
void delay(unsigned int a)
{
unsigned int i;
      while(--a !=0)
      {
      for(i=1;i<600;i++);
}
      }
  int main(void)
{
while(1)
      {
      RCC_AFB2ENR |= 0x00000008;
      GPIOC_CRL  |= 0x00100011;
      GPIOC_ODR &= ~(0x00000023);
      GPIOC_ODR |= 0x00000002;
            delay(SPEED);
            RCC_AFB2ENR |= 0x00000008;
      GPIOC_CRL  |= 0x00100011;
      GPIOC_ODR &= ~(0x00000023);
      GPIOC_ODR |= 0x00000001;
         delay(SPEED);
               RCC_AFB2ENR |= 0x00000008;
      GPIOC_CRL  |= 0x00100011;
      GPIOC_ODR &= ~(0x00000023);
      GPIOC_ODR |= 0x000000020;
         delay(SPEED);
               RCC_AFB2ENR |= 0x00000008;
      GPIOC_CRL  |= 0x00100011;
      GPIOC_ODR &= ~(0x00000023);
      GPIOC_ODR |= 0x00000000;
         delay(SPEED);
               RCC_AFB2ENR |= 0x00000008;
      GPIOC_CRL  |= 0x00100011;
      GPIOC_ODR &= ~(0x00000023);
      GPIOC_ODR |= 0x000000023;
         delay(SPEED);
      }
}

void SystemInit(void)
{
}

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