STM32????????
STM32?е??????ж????????????2??????????????????4????????????2?????????????2??????????????1?????δ????SysTick??
?????????????????????????????????????????????????????????????????????????????????????????
????????????????1???ж????????:
????????????????????????????????????????CK_CNT???????????????????TIMx_PSC,??TIMx_PSC=0?????????????=1???2?????????????
????:CK_CNT=fclk_PSC/(PSC[15:0]+1),????PSC????65535.
?????TIM5???????????????????TIM5????????CK_CNT???????????????????趨??????ж??
(1/???????????)*?????=?趨?????1?????
(1/(72MHz/7200))*10000=1s
?????????????????????????TIM_TimeBaseInitTypeDef
void TIM_TimeBaseInit(TIM_TypeDef* TIMx, TIM_TimeBaseInitTypeDef * TIM_TimeBaseInitStruct) ?????TIMx?????????????λ??
??λ??????ж??????λ??????void TIM_ClearITPendingBit(TIM_TypeDef* TIMx, u16 TIM_IT) ????????????????TIM_IT???????? TIM ?ж??????λ ??
void TIM_ITConfig(TIM_TypeDef* TIMx, u16 TIM_IT, FunctionalState NewState) ???/???TIM??????ж????:
???ж?????У?????????TIM?ж???????
????admin ?????????2018-05-19
