stm32时基定时器是用程序 -

标题: stm32时基定时器是用程序 [打印本页]

作者: geige 时间: 2015-7-26 02:19
标题: stm32时基定时器是用程序
#include "stm32f10x.h"

void Delay(unsignedint x);
unsigned intTimingDelay;
intmain(void)
{
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);
}


while(1)
{

GPIO_SetBits(GPIOC, GPIO_Pin_6);
Delay(100);                      //100*10ms=1s
GPIO_ResetBits(GPIOC, GPIO_Pin_6);
Delay(100);                      //100*10ms=1s
}
}

void Delay(unsignedint x)
{

TimingDelay=x;
while(TimingDelay!=0);
}

voidTimingDelay_Decrement(void)
{
if (TimingDelay != 0x00)
{
TimingDelay--;
}
}

//以下是报错函数
#ifdef USE_FULL_ASSERT
voidassert_failed(uint8_t* file, uint32_t line)
{
while (1)
{
}
}
#endif

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