#include "timer.h" #include "stm32_hal_legacy.h" TIM_HandleTypeDef htim14; TIM_HandleTypeDef htim3; TIM_HandleTypeDef htim7; static void (*s_TIM_CallBack)(void); static uint32_t g_iRunTime = 0; void MODBUS_Tim14_Init(void) { uint32_t usPeriod; uint16_t usPrescaler; uint32_t uiTIMxCLK; uiTIMxCLK = SystemCoreClock / 2; usPrescaler = uiTIMxCLK / 1000000 ; /* 分频到周期 1us */ usPeriod = 0xFFFF; /* 103支持16位 */ /* Time base configuration */ TIM_ClockConfigTypeDef sClockSourceConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0}; htim14.Instance = TIM14; htim14.Init.Prescaler = usPrescaler; htim14.Init.CounterMode = TIM_COUNTERMODE_UP; htim14.Init.Period = usPeriod; htim14.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim14.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; HAL_TIM_Base_Init(&htim14); sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL; HAL_TIM_ConfigClockSource(&htim14, &sClockSourceConfig); sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; HAL_TIMEx_MasterConfigSynchronization(&htim14, &sMasterConfig); __HAL_TIM_CLEAR_FLAG(&htim14,TIM_FLAG_UPDATE);//定时器中断关闭 __HAL_TIM_ENABLE_IT(&htim14,TIM_IT_UPDATE); //使能更新中断一定要使能 /* TIMx enable counter */ HAL_TIM_Base_Stop_IT(&htim14); HAL_NVIC_SetPriority(TIM14_IRQn, 4, 0); HAL_NVIC_EnableIRQ(TIM14_IRQn); } //以下用来判断是否经过3.5个字节的时间 //在串口接受中断函数中被调用，每接受一个调用一次，重新开始计时 void bsp_StartHardTimer(uint32_t _uiTimeOut, void * _pCallBack) { uint32_t cnt_now; uint32_t cnt_tar; if (_uiTimeOut < 5) { ; } else { _uiTimeOut -= 5; } __HAL_TIM_SetCounter(&htim14,0); HAL_TIM_Base_Start_IT(&htim14); cnt_now = __HAL_TIM_GetCounter(&htim14); /* 读取当前的计数器值 */ cnt_tar = cnt_now + _uiTimeOut; /* 计算捕获的计数器值 */ //rt_kprintf("cnt_tar is %d \n",cnt_tar); s_TIM_CallBack = (void (*)(void))_pCallBack; __HAL_TIM_SetCompare(&htim14, TIM_CHANNEL_1,cnt_tar); /* 设置捕获比较计数器CC3 */ __HAL_TIM_CLEAR_IT(&htim14, TIM_IT_CC1); __HAL_TIM_ENABLE_IT(&htim14, TIM_IT_CC1); } //如果没有新数据接受，超时进入中断函数，将标志位置1 //time14回调函数 void HAL_TIM_OC_DelayElapsedCallback(TIM_HandleTypeDef *htim) { if(htim->Instance == htim14.Instance) { //rt_kprintf("HAL_TIM_OC_DelayElapsedCallback\n"); if(__HAL_TIM_GET_IT_SOURCE(&htim14,TIM_IT_CC1)!=RESET) { __HAL_TIM_CLEAR_IT(&htim14, TIM_IT_CC1); __HAL_TIM_DISABLE_IT(&htim14, TIM_IT_CC1); s_TIM_CallBack(); //将标志位置1 } } } extern uint32_t Config_at_Cnt; //配置函数延时变量,定时器内部累加 extern uint16_t Config_lora_at_Cnt; uint8_t GPS_Startflag = 0;//4G模块上电标准位 1：上电 uint32_t GPS_Start_Cnt = 0;//4G GPS功能打开标志 //tim3和tim7 回调函数 void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) { //rt_kprintf("HAL_TIM_PeriodElapsedCallback\n"); if(htim->Instance == htim3.Instance) { g_iRunTime++; if(g_iRunTime > 0x7FFFFFFF) g_iRunTime = 0; //rt_kprintf("HAL_TIM_PeriodElapsedCallback for tim3\n"); } else if(htim->Instance == htim7.Instance) { Config_at_Cnt ++; if(GPS_Startflag) { GPS_Start_Cnt++; } Config_lora_at_Cnt++; //rt_kprintf("HAL_TIM_PeriodElapsedCallback for tim7\n"); } } //定时器3用于计数,1ms进入中断 void MODBUS_Tim3_Init(void) { TIM_ClockConfigTypeDef sClockSourceConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0}; htim3.Instance = TIM3; htim3.Init.Prescaler = 63;//35; //改 71 htim3.Init.CounterMode = TIM_COUNTERMODE_UP; htim3.Init.Period = 999; htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; // htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; HAL_TIM_Base_Init(&htim3); sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL; HAL_TIM_ConfigClockSource(&htim3, &sClockSourceConfig); sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig); /* 配置TIM定时中断 (Update) */ HAL_NVIC_SetPriority(TIM3_IRQn, 4, 2); HAL_NVIC_EnableIRQ(TIM3_IRQn); __HAL_TIM_ENABLE_IT(&htim3,TIM_IT_UPDATE); //使能更新中断一定要使能 HAL_TIM_Base_Start_IT(&htim3); } //以下用来判断是否超时 //获取当前计数器计数值 uint32_t bsp_GetRunTime(void) { int32_t runtime; __set_PRIMASK(1); /* 关中断 */ runtime = g_iRunTime; /* 这个变量在Systick中断中被改写，因此需要关中断进行保护 */ __set_PRIMASK(0); /* 开中断 */ return runtime; } //获取间隔时间 //如果现在时间比形参大 返回现在时间 - 形参 //如果现在时间比形参小 返回最大计算 - 现在时间与形参差值 uint32_t bsp_CheckRunTime(int32_t _LastTime) { int32_t now_time; int32_t time_diff; __set_PRIMASK(1); /* 关中断 */ now_time = g_iRunTime; /* 这个变量在Systick中断中被改写，因此需要关中断进行保护 */ __set_PRIMASK(0); /* 开中断 */ //rt_kprintf("now_time is %d ",now_time); if (now_time >= _LastTime)//如果现在时间比形参大 { time_diff = now_time - _LastTime; //返回现在时间-形参 } else { time_diff = 0x7FFFFFFF - _LastTime + now_time; } return time_diff; } /* 扩展变量 ------------------------------------------------------------------*/ /* 私有函数原形 --------------------------------------------------------------*/ /* 函数体 --------------------------------------------------------------------*/ extern void Error_Handler(void); /** * 函数功能: 基本定时器7初始化 * 输入参数: 无 * 返 回 值: 无 * 说 明: 无 */ void GENERAL_TIM7_Init(void) { TIM_MasterConfigTypeDef sMasterConfig = {0}; /* USER CODE BEGIN TIM7_Init 1 */ /* USER CODE END TIM7_Init 1 */ htim7.Instance = TIM7; htim7.Init.Prescaler = 63; htim7.Init.CounterMode = TIM_COUNTERMODE_UP; htim7.Init.Period = 1000-1;//改 1000 -> 1000-1 htim7.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; if (HAL_TIM_Base_Init(&htim7) != HAL_OK) { Error_Handler(); } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim7, &sMasterConfig) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN TIM7_Init 2 */ __HAL_TIM_ENABLE_IT(&htim7,TIM_IT_UPDATE); //使能更新中断一定要使能这一句话困扰了我两天 HAL_TIM_Base_Start_IT(&htim7); /* USER CODE END TIM7_Init 2 */ } void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle) { if(tim_baseHandle->Instance==TIM7) { /* USER CODE BEGIN TIM7_MspInit 0 */ //rt_kprintf("Instance==TIM7 \n"); /* USER CODE END TIM7_MspInit 0 */ /* TIM7 clock enable */ __HAL_RCC_TIM7_CLK_ENABLE(); /* TIM7 interrupt Init */ HAL_NVIC_SetPriority(TIM7_IRQn, 0, 0); HAL_NVIC_EnableIRQ(TIM7_IRQn); /* USER CODE BEGIN TIM7_MspInit 1 */ /* USER CODE END TIM7_MspInit 1 */ } else if(tim_baseHandle->Instance==TIM14) { /* USER CODE BEGIN TIM14_MspInit 0 */ /* USER CODE END TIM14_MspInit 0 */ /* TIM14 clock enable */ __HAL_RCC_TIM14_CLK_ENABLE(); /* TIM14 interrupt Init */ HAL_NVIC_SetPriority(TIM14_IRQn, 0, 0); HAL_NVIC_EnableIRQ(TIM14_IRQn); /* USER CODE BEGIN TIM14_MspInit 1 */ /* USER CODE END TIM14_MspInit 1 */ } else if(tim_baseHandle->Instance==TIM17) { /* USER CODE BEGIN TIM17_MspInit 0 */ /* USER CODE END TIM17_MspInit 0 */ /* TIM17 clock enable */ __HAL_RCC_TIM17_CLK_ENABLE(); /* USER CODE BEGIN TIM17_MspInit 1 */ /* USER CODE END TIM17_MspInit 1 */ } } void HAL_TIM_MspPostInit(TIM_HandleTypeDef* timHandle) { //GPIO_InitTypeDef GPIO_InitStruct = {0}; if(timHandle->Instance==TIM14) { /* USER CODE BEGIN TIM14_MspPostInit 0 */ /* USER CODE END TIM14_MspPostInit 0 */ #if 0 __HAL_RCC_GPIOA_CLK_ENABLE(); /**TIM14 GPIO Configuration PA4 ------> TIM14_CH1 */ GPIO_InitStruct.Pin = GPIO_PIN_4; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; GPIO_InitStruct.Alternate = GPIO_AF4_TIM14; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); /* USER CODE BEGIN TIM14_MspPostInit 1 */ /* USER CODE END TIM14_MspPostInit 1 */ #endif } } void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle) { if(tim_baseHandle->Instance==TIM7) { /* USER CODE BEGIN TIM7_MspDeInit 0 */ /* USER CODE END TIM7_MspDeInit 0 */ /* Peripheral clock disable */ __HAL_RCC_TIM7_CLK_DISABLE(); /* TIM7 interrupt Deinit */ HAL_NVIC_DisableIRQ(TIM7_IRQn); /* USER CODE BEGIN TIM7_MspDeInit 1 */ /* USER CODE END TIM7_MspDeInit 1 */ } else if(tim_baseHandle->Instance==TIM14) { /* USER CODE BEGIN TIM14_MspDeInit 0 */ /* USER CODE END TIM14_MspDeInit 0 */ /* Peripheral clock disable */ __HAL_RCC_TIM14_CLK_DISABLE(); /* TIM14 interrupt Deinit */ HAL_NVIC_DisableIRQ(TIM14_IRQn); /* USER CODE BEGIN TIM14_MspDeInit 1 */ /* USER CODE END TIM14_MspDeInit 1 */ } else if(tim_baseHandle->Instance==TIM17) { /* USER CODE BEGIN TIM17_MspDeInit 0 */ /* USER CODE END TIM17_MspDeInit 0 */ /* Peripheral clock disable */ __HAL_RCC_TIM17_CLK_DISABLE(); /* USER CODE BEGIN TIM17_MspDeInit 1 */ /* USER CODE END TIM17_MspDeInit 1 */ } } /* USER CODE BEGIN 1 */ int timer_init(void) { MODBUS_Tim14_Init(); MODBUS_Tim3_Init(); GENERAL_TIM7_Init(); // rt_kprintf(" timer_init\n"); return 0; } INIT_APP_EXPORT(timer_init); //MSH_CMD_EXPORT(show_timer_count, show_timer_count);