#ifndef _TIMER_H_ #define _TIMER_H_#include "stm32f10x.h" #include "type.h"// LED定時器，按鍵定時器，重發定時器 #define LED_TIMER TIM1 #define LED_TIMER_DIV 7200 #define LED_TIMER_PERIOD 2500#define PWM_TIMER TIM2#define RESEND_TIMER TIM3 #define RESEND_TIMER_DIV 7200 #define RESEND_TIMER_PERIOD 2500#define KEY_TIMER TIM4 #define KEY_TIMER_DIV 7200 #define KEY_TIMER_PERIOD 200void TimerNvicConfig(void); void TimerConfig(TIM_TypeDef *timer, uint16_t div, uint16_t period); void TimerEnable(TIM_TypeDef *timer); void TimerDisable(TIM_TypeDef *timer);#endif /* _TIMER_H_ */#include "stm32f10x_tim.h" #include "stm32f10x_rcc.h" #include "timer.h"/* * 三個定時器: 1 燈色 2 按鍵 3 重發 */ void TimerNvicConfig(void) {NVIC_InitTypeDef NVIC_StructInit;NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);NVIC_StructInit.NVIC_IRQChannel = TIM1_UP_IRQn;NVIC_StructInit.NVIC_IRQChannelCmd = ENABLE;NVIC_StructInit.NVIC_IRQChannelPreemptionPriority = 0;NVIC_StructInit.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_StructInit);NVIC_StructInit.NVIC_IRQChannel = TIM2_IRQn;NVIC_StructInit.NVIC_IRQChannelCmd = ENABLE;NVIC_StructInit.NVIC_IRQChannelPreemptionPriority = 1;NVIC_StructInit.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_StructInit);NVIC_StructInit.NVIC_IRQChannel = TIM3_IRQn;NVIC_StructInit.NVIC_IRQChannelCmd = ENABLE;NVIC_StructInit.NVIC_IRQChannelPreemptionPriority = 2;NVIC_StructInit.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_StructInit);NVIC_StructInit.NVIC_IRQChannel = TIM4_IRQn;NVIC_StructInit.NVIC_IRQChannelCmd = ENABLE;NVIC_StructInit.NVIC_IRQChannelPreemptionPriority = 3;NVIC_StructInit.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_StructInit); }void TimerConfig(TIM_TypeDef *timer, uint16_t div, uint16_t period) {TIM_TimeBaseInitTypeDef TIM_StructInit;if(LED_TIMER == timer){RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);}else if(RESEND_TIMER == timer){RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);}else if(KEY_TIMER == timer){RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);}TIM_StructInit.TIM_Period = period;TIM_StructInit.TIM_Prescaler = div;TIM_StructInit.TIM_ClockDivision = TIM_CKD_DIV1; /* 數字濾波器采樣頻率 */TIM_StructInit.TIM_CounterMode = TIM_CounterMode_Up; /* 向上計數 */TIM_StructInit.TIM_RepetitionCounter = 0;TIM_TimeBaseInit(timer, &TIM_StructInit);TIM_ITConfig(timer, TIM_IT_Update, ENABLE); /* 允許中斷 */TIM_ClearFlag(timer, TIM_FLAG_Update); /* 更新定時器會產生更新時間,清除標志位 */ }void TimerEnable(TIM_TypeDef *timer) {TIM_Cmd(timer, ENABLE); }void TimerDisable(TIM_TypeDef *timer) {TIM_Cmd(timer, DISABLE); }

總結

以上是生活随笔為你收集整理的STM32f103 —— timer的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。