【STM32 Cotex-M3处理器系列编程】时基定时器
#include "stm32f10x.h" SystemInit();//配置系统时钟 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);//使能APB2外设时钟 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD,ENABLE);//IO口使能设置 GPIO_InitTypeDef GPIO_InitStructure; //定义I/O口结构体 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOC, &GPIO_InitStructure); GPIO_ResetBits(GPIOC, GPIO_Pin_6); if (SysTick_Config(72000000 / 100)) //每10ms中断一次 { while (1); } GPIO_SetBits(GPIOC, GPIO_Pin_6); Delay(100); //100*10ms=1s GPIO_ResetBits(GPIOC, GPIO_Pin_6); Delay(100); //100*10ms=1s if (TimingDelay != 0x00) { TimingDelay--; } while (1) { }
void Delay(unsigned int x);
unsigned int TimingDelay;
int main(void)
{
while(1)
{
}
}
void Delay(unsigned int x)
{
TimingDelay=x;
while(TimingDelay!=0);
}
void TimingDelay_Decrement(void)
{
}
//以下是报错函数
#ifdef USE_FULL_ASSERT
void assert_failed(uint8_t* file, uint32_t line)
{
}
#endif
关键词: STM32Cotex-M3时基定时

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