STM32 v3.5固件庫systick ms延時
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/*初始化時鐘*/
本文引用地址：http://yuyingmama.com.cn/article/201612/325082.htmvoid Init_SysTick(void)
{
/* Disable SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Disable);
/* Disable the SysTick Interrupt */
SysTick_ITConfig(DISABLE);
/* Configure HCLK clock as SysTick clock source */
SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK_Div8);
/* SysTick interrupt each 1000 Hz with HCLK equal to 72MHz */
SysTick_SetReload(9000);
/* Enable the SysTick Interrupt */
SysTick_ITConfig(ENABLE);
}
__IO uint32_t TimingDelay;
void delay_ms(__IO uint32_t nTime)
{
/* Enable the SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Enable);
TimingDelay = nTime;
while(TimingDelay != 0);
/* Disable SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Disable);
/* Clear SysTick Counter */
SysTick_CounterCmd(SysTick_Counter_Clear);
}
/*stm32f10x_it.c中的void SysTick_Handler(void)函數(shù)改為*/
extern __IO uint32_t TimingDelay;
void SysTick_Handler(void)
{
if (TimingDelay != 0x00)
{
TimingDelay--;
}
}
/*用法，延時1秒*/
delay_ms(1000);
/*初始化時鐘*/
void Init_SysTick(void)
{
if(SysTick_Config(SystemCoreClock / 1000)) //注意：3.5庫中SystemFrequency 被SystemCoreClock 取代。
while(1);
}
/*延時1ms函數(shù)*/
__IO uint32_t TimingDelay;
void delay_ms(__IO uint32_t nTime)
{
TimingDelay = nTime;
while(TimingDelay != 0);
}
/*stm32f10x_it.c中的void SysTick_Handler(void)函數(shù)改為*/
extern __IO uint32_t TimingDelay;
void SysTick_Handler(void)
{
if (TimingDelay != 0x00)
{
TimingDelay--;
}
}
/*用法，延時1秒*/
delay_ms(1000);
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