*/__weak HAL_StatusTypeDefHAL_InitTick(uint32_tTickPriority){/*Configure the SysTick to have interrupt in 1ms time basis*/HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);/*Configure the SysTick IRQ priority */HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0);/* Return function status ...
{/*Configure the SysTick to have interrupt in 1ms time basis*/HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);/*Configure the SysTick IRQ priority*/HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0);/*Return function status*/returnHAL_OK; } 解析:HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq...
方案一: 参考博客:https://blog.csdn.net/qq_34752070/article/details/82620374 // HAL_RCC_GetHCLKFreq()/1000 1ms中断一次,即HAL_Delay函数延时基准为1ms // HAL_RCC_GetHCLKFreq()/100000 10us中断一次,即HAL_Delay函数延时基准为10us // HAL_RCC_GetHCLKFreq()/1000000 1us中断一次,即HAL_Delay函数...
* 例程名称: YSF1_HAL-035. RCC-时钟配置和MCO输出 * *** * 说明：* 本例程配套...
* 例程名称: YSF1_HAL-035. RCC-时钟配置和MCO输出 * *** * 说明：* 本例程配套...
1//HAL_RCC_GetHCLKFreq()/1000 1ms中断一次,即HAL_Delay函数延时基准为1ms2//HAL_RCC_GetHCLKFreq()/100000 10us中断一次,即HAL_Delay函数延时基准为10us3//HAL_RCC_GetHCLKFreq()/1000000 1us中断一次,即HAL_Delay函数延时基准为1us4HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000000);//配置并启动系...
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);/**Configure the Systick */ // 配置系统定时...
void HAL_RTC_MspDeInit(RTC_HandleTypeDef* hrtc){ if(hrtc->Instance==RTC){ __HAL_RCC_RTC_...
180M / 1000 = 180000 HAL_SYSTICK_Config(180000)代表了延时了180000 / f主频 = 1 /1000s 即 1ms 中断一次 同理HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000000) 即 1us 中断一次 为何输入延时时间在HAL_Delay(us-1);处要减1呢?由于进出函数,配置寄存器都需要时间,经过测试大约为1us,故而要减去...
/*Configure the SysTick to have interrupt in 1ms time basis*/HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000U); 通过CubeMx的注释,表明这个函数决定了SysTick为1ms中断一次,如果形参我们不除以1000,这个函数则会1s中断一次,那么我们HAL_Delay()的延时单位将会是1s。这是因为这个值形参就是SysTick的倒计时...