#include "bsp_timer3.h" /*如果Period=N*10,那么每隔N毫秒中断一次。*/ void BSP_Timer3Init(void){ TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; NVIC_InitTypeDef NVIC_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //时钟使能 TIM_TimeBaseStructure.TIM_Period = 9; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值 计数到N*10为Nms TIM_TimeBaseStructure.TIM_Prescaler =(7200-1); //设置用来作为TIMx时钟频率除数的预分频值 10Khz的计数频率 TIM_TimeBaseStructure.TIM_ClockDivision = 0; //设置时钟分割:TDTS = Tck_tim TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式 TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位 TIM_ITConfig( //使能或者失能指定的TIM中断 TIM3, //TIM3 TIM_IT_Update| //TIM 中断源 TIM_IT_Trigger,//TIM 触发中断源 ENABLE //使能 ); /*配置中断优先级*/ NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; //TIM3中断 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占优先级0级 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //从优先级3级 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能 NVIC_Init(&NVIC_InitStructure);//根据NVIC_InitStruct中指定的参数初始化外设NVIC寄存器 TIM_Cmd(TIM3, ENABLE); //使能TIMx外设 } uint16_t UART2Count = 0; uint8_t UART2RecTime = 0; uint16_t UART3Count = 0; uint8_t UART3RecTime = 0; void TIM3_IRQHandler(void) //TIM3中断服务程序 { if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)//检查指定的TIM中断发生与否 { TIM_ClearITPendingBit(TIM3,TIM_IT_Update); //清除TIMx的中断标志位 // 串口2接收判断 if((UART2ReadFlag!=0)&&(!(UART2ReadFlag&0x8000))) { if(UART2RecTime<=200) UART2RecTime++; if(UART2RecTime >= 20) { if(UART2Count == UART2ReadFlag) { UART2ReadFlag |= (1 << 15); UART2Count = 0; UART2RecTime = 0; } else { UART2Count = UART2ReadFlag; UART2RecTime = 0; } } } else { UART2RecTime = 0; UART2Count = 0; } // 串口3接收判断 if((UART3ReadFlag!=0)&&(!(UART3ReadFlag&0x8000))) { if(UART3RecTime <= 100) UART3RecTime++; if(UART3RecTime >= 20) { if(UART3Count == UART3ReadFlag) { UART3ReadFlag |= (1 << 15); UART3Count = 0; UART3RecTime = 0; } else { UART3Count = UART3ReadFlag; UART3RecTime = 0; } } } else { UART3RecTime = 0; UART3Count = 0; } // 空气信息获取时间 if(DevParam.AirInforGetTime<65000) DevParam.AirInforGetTime++; // 电池图标刷新时间 if(DevParam.BatIconRefreshTime<65000) DevParam.BatIconRefreshTime++; // 电池信息获取时间 if(DevParam.BatInforGetTime<65000) DevParam.BatInforGetTime++; // 侧边跳动时间 if(DevParam.SideBeatTime<65000) DevParam.SideBeatTime++; // 上报到服务器状态时间 if(DevParam.ServerUpdateTime<65000) DevParam.ServerUpdateTime++; // 发送时间 if(DevParam.ESP8266SendTime<65000) DevParam.ESP8266SendTime++; } }