#include "base/define.h" #include "timer_cfg.h" #include "base/delay.h" volatile Timerupdatefunc p_timer4update_func = NULL; /* @brief 发送时钟校准波形 @param pre_us 发送的周期 @param count 发送周期的个数 */ static volatile uint16_t amend_plus_count = 0; volatile TimerTriger p_timertriger = NULL; void FireBus_ClkAmend(uint16_t pre_us,uint16_t trigger_us,uint16_t count,void *p_fun) { TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;//定时器初始化结构 TIM_OCInitTypeDef TIM_OCInitStructure;//通道输出初始化结构 NVIC_InitTypeDef NVIC_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE ); p_timertriger = (TimerTriger)p_fun; amend_plus_count = count; NVIC_DisableIRQ(TIM3_IRQn); //TIM初始化 TIM_TimeBaseStructure.TIM_Period = pre_us-1; //周期0～FFFF TIM_TimeBaseStructure.TIM_Prescaler = 71 ; //时钟分频 TIM_TimeBaseStructure.TIM_ClockDivision = 0; //时钟分 1us TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//模式 TIM_TimeBaseStructure.TIM_RepetitionCounter = 0; TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //基本初始化 //TIM3通道初始化 TIM_OCStructInit(& TIM_OCInitStructure); //默认参数 TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing; //工作状态 TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //设定为输出，需要PWM输出才需要这行代码 TIM_OCInitStructure.TIM_Pulse = pre_us-trigger_us - 1; //占空长度 TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //高电平 TIM_OC1Init(TIM3, &TIM_OCInitStructure); TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable); TIM_ClearFlag(TIM3,TIM_IT_CC1); TIM_ITConfig(TIM3, TIM_IT_CC1 , ENABLE);//使能CC1中断 TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE); TIM_ARRPreloadConfig(TIM3, ENABLE); TIM_SetCompare3(TIM3,0); TIM_Cmd(TIM3, ENABLE); //开启定时器 NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 9; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //TIM2全局中断使能 NVIC_ClearPendingIRQ(TIM3_IRQn); NVIC_Init(&NVIC_InitStructure); } /* 使用轮询的方式检测校准结束 */ void FireBus_ClkAmendCycle(void) { //使用查询的方式，关闭中断 NVIC_DisableIRQ(TIM3_IRQn); TIM_ITConfig(TIM3, TIM_IT_CC1 , DISABLE);//使能CC1中断 TIM_ITConfig(TIM3,TIM_IT_Update,DISABLE); if(p_timertriger == NULL) { return; } __disable_irq(); while(1) { uint8_t flag = 0; if( TIM_GetITStatus(TIM3,TIM_IT_Update)) { if(amend_plus_count > 0) amend_plus_count--; flag = 1; p_timertriger(flag); TIM3->SR = 0; }else if(TIM_GetITStatus(TIM3,TIM_IT_CC1)) { flag = 2; p_timertriger(flag); TIM3->SR = 0; } if(amend_plus_count == 0) { flag = 3; TIM_DeInit(TIM3); p_timertriger(flag); p_timertriger = NULL; break; } } __enable_irq(); } void TIM3_IRQHandler() { uint8_t flag = 0; rt_interrupt_enter(); if( TIM_GetITStatus(TIM3,TIM_IT_Update)) { if(amend_plus_count > 0) amend_plus_count--; flag = 1; }else if(TIM_GetITStatus(TIM3,TIM_IT_CC1)) { flag = 2; } //timer_interrupt_flag_clear(TIMER2,TIMER_FLAG_UP|TIMER_FLAG_CH2|TIMER_FLAG_CH2O); TIM3->SR = 0; if(p_timertriger != NULL) { p_timertriger(flag); } if(amend_plus_count == 0) { flag = 3; NVIC_DisableIRQ(TIM3_IRQn); TIM_DeInit(TIM3); p_timertriger(flag); p_timertriger = NULL; } rt_interrupt_leave(); } /* @brief 超时定时器,单位10ms @param ms 最大可设置6553。 @param pfunc 超时回调函数，注意回调函数中不能做长延时任务 */ void RunTimeOut_Timer(uint16_t ms,Timerupdatefunc pfunc ) { NVIC_InitTypeDef NVIC_InitStructure; //定时器初始化数据结构定义 TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE ); p_timer4update_func = pfunc; ms = ms*2-1; NVIC_DisableIRQ(TIM1_UP_IRQn); //复位计数器 TIM_DeInit(TIM1); TIM_TimeBaseStructure.TIM_Period = ms; //计数上限，100*100us = 10000us = 10ms TIM_TimeBaseStructure.TIM_Prescaler = 36000-1;//2K; //预分频72MHz主频，分频后时钟周期0.5ms TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //不分频 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数 TIM_TimeBaseStructure.TIM_RepetitionCounter=0; //初始化 TIM_TimeBaseInit(TIM1,&TIM_TimeBaseStructure); //清中断 TIM_ClearFlag(TIM1, TIM_FLAG_Update); TIM_ITConfig(TIM1,TIM_IT_Update,ENABLE); //定时器清零 TIM_SetCounter(TIM1,0); TIM_ARRPreloadConfig(TIM1, DISABLE); //定时器启动 TIM_Cmd(TIM1,ENABLE); NVIC_InitStructure.NVIC_IRQChannel = TIM1_UP_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 10; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //TIM2全局中断使能 NVIC_ClearPendingIRQ(TIM1_UP_IRQn); NVIC_Init(&NVIC_InitStructure); } //停止超时定时器计数 void RunTimeoutStop(void) { TIM_DeInit(TIM1); } //获取超时定时器计数值 uint16_t GetRunTimeOutCount(void) { return TIM1->CNT; } void TIM1_UP_IRQHandler() { // uint8_t flag = 0; rt_interrupt_enter(); if(TIM_GetITStatus(TIM1,TIM_IT_Update)) { if(p_timer4update_func != NULL) { TIM_Cmd(TIM1,DISABLE); p_timer4update_func(); } } TIM1->SR = 0x00; rt_interrupt_leave(); } /* 延时定时器初始化，单次向上计数 */ void DelayTimer_Init(void) { //定时器初始化数据结构定义 TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE ); TIM_DeInit(TIM2); TIM_TimeBaseStructure.TIM_Period = 0xFFFF; //计数上限，100*100us = 10000us = 10ms TIM_TimeBaseStructure.TIM_Prescaler = 7200-1; //预分频48,48MHz主频，分频后时钟周期1us TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //不分频 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数 TIM_TimeBaseStructure.TIM_RepetitionCounter=0; TIM_ARRPreloadConfig(TIM2, DISABLE); //初始化 TIM_TimeBaseInit(TIM2,&TIM_TimeBaseStructure); StartDelayTime(); } /* 延时定时器初始化，单次向上计数 */ void TimerCount_Init(void) { //定时器初始化数据结构定义 TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE ); TIM_DeInit(TIM2); TIM_TimeBaseStructure.TIM_Period = 0xFFFF; //计数上限，100*100us = 10000us = 10ms TIM_TimeBaseStructure.TIM_Prescaler = 7200-1; //预分频48,48MHz主频，分频后时钟周期1us TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //不分频 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数 TIM_TimeBaseStructure.TIM_RepetitionCounter=0; TIM_ARRPreloadConfig(TIM2, DISABLE); //初始化 TIM_TimeBaseInit(TIM2,&TIM_TimeBaseStructure); } /* @brief 重启延时定时器 */ void StartDelayTime() { TIM_Cmd(TIM2,DISABLE); TIM2->CNT = 0; TIM2->PSC = (uint32_t)7200-1;//10K 0.1ms TIM2->EGR |= TIM_EventSource_Update; TIM2->SR = 0; TIM_Cmd(TIM2,ENABLE); } /* @brief 定时器是否运行到大于当前值 @param 当前比较值 */ uint8_t isDelayEnd(uint16_t wait_time) { if((TIM2->CNT > wait_time) && (TIM2->SR > 0) ) return 0; return 1; } /* @breif 等待定时器计数值大于设定值 @param 等待定时器的结束值，单位0.1ms */ void WaitDelayEnd(uint16_t wait_time) { while((TIM2->CNT < wait_time) && (TIM2->SR < 1)) { } } /* @brief 获取当前定时器计数值，单位1us。并重启计数 @rtv 返回上次的计数值 */ uint16_t Get1usCount(void) { uint16_t us_value ; if(TIM2->SR > 0) { us_value = 65535; }else{ us_value = TIM2->CNT; } TIM_Cmd(TIM2,DISABLE); TIM2->CNT = 0; TIM2->PSC = (uint32_t)71;//1M 1us TIM2->EGR |= TIM_EventSource_Update; TIM2->SR = 0; TIM_Cmd(TIM2,ENABLE); return us_value; } /* @brief 获取当前定时器计数值，单位10us。并重启计数 @rtv 返回上次的计数值 */ uint16_t Get10usCount(void) { uint16_t us_value ; if(TIM2->SR > 0) { us_value = 65535; }else{ us_value = TIM2->CNT; } TIM_Cmd(TIM2,DISABLE); TIM2->CNT = 0; TIM2->PSC = (uint32_t)720-1;//100K 10us TIM2->EGR |= TIM_EventSource_Update; TIM2->SR = 0; TIM_Cmd(TIM2,ENABLE); return us_value; } /* @brief 获取当前定时器计数值，单位0.1ms。并重启计数 @rtv 返回上次的计数值 */ uint16_t Get100usCount(void) { uint16_t us_value ; if(TIM2->SR > 0) { us_value = 65535; }else{ us_value = TIM2->CNT; } TIM_Cmd(TIM2,DISABLE); TIM2->CNT = 0; TIM2->PSC = (uint32_t)7200-1;//10K 100us TIM2->EGR |= TIM_EventSource_Update; TIM2->SR = 0; TIM_Cmd(TIM2,ENABLE); return us_value; } /* @brief 直接获取定时器的值 */ uint16_t GetCountTimerCnt() { return TIM2->CNT; } void TimerCount_Off(void) { TIM_Cmd(TIM2,DISABLE); TIM2->CNT = 0; TIM2->PSC = (uint32_t)7200-1;//10K 0.1ms TIM2->EGR |= TIM_EventSource_Update; TIM2->SR = 0; }