最近機器一直異常死機，不排除硬件問題的情況下，懷疑是多個中斷同時處理的原因，求解答
TIM2_PWM_Init(9000,0);
TIM3_Int_Init(1000,720);
TIM4_Int_Init(2000,2);
TIM5_Int_Init(9980,7199);
TIM2-------------------------------------------語音
TIM3-------------------------------------------433遙控
TIM4-------------------------------------------按鍵狀態機（處理內容較多）
TIM5-------------------------------------------S級中斷（處理內容較多）
void TIM2_PWM_Init(u32 arr,u32 psc) //CH1-PA15 CH2-PB3 CH3-PB10 CH4-PB11 ???
{
TIM_OCInitTypeDef TIM_OCInitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
TIM_TimeBaseStructure.TIM_Prescaler=psc; //?????
TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up; //??????
TIM_TimeBaseStructure.TIM_Period=arr; //??????
TIM_TimeBaseStructure.TIM_ClockDivision=0;
TIM_TimeBaseInit(TIM2,&TIM_TimeBaseStructure);//??????2
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //???????:TIM????????2
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //??????
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //????:TIM???????//
TIM_OCInitStructure.TIM_Pulse = 500;
TIM_OC4Init(TIM2, &TIM_OCInitStructure); //??T??????????TIM2 OC1
TIM_OC4PreloadConfig(TIM2, TIM_OCPreload_Enable); //??TIM2?CCR1????????
TIM_ITConfig(TIM2,TIM_IT_Update|TIM_IT_CC4,ENABLE); //?????3????
TIM_SelectOutputTrigger(TIM2, TIM_TRGOSource_Update);
TIM_Cmd(TIM2, ENABLE); //??TIM14
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x02;//?????3
NVIC_InitStructure.NVIC_IRQChannelSubPriority =0x01; //????3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ????
NVIC_Init(&NVIC_InitStructure); //??????????NVIC????
}
void TIM3_Int_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //時鐘使能
TIM_TimeBaseStructure.TIM_Period = arr; //設置在下一個更新事件裝入活動的自動重裝載寄存器周期的值 計數到5000為500ms
TIM_TimeBaseStructure.TIM_Prescaler =psc; //設置用來作為TIMx時鐘頻率除數的預分頻值 10Khz的計數頻率
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //設置時鐘分割:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上計數模式
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //根據TIM_TimeBaseInitStruct中指定的參數初始化TIMx的時間基數單位
TIM_ITConfig( TIM3,TIM_IT_Update , ENABLE );
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; //TIM3中斷
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占優先級0級
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //從優先級3級
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //根據NVIC_InitStruct中指定的參數初始化外設NVIC寄存器
TIM_Cmd(TIM3, ENABLE); //使能TIMx外設
}
void TIM4_Int_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); //時鐘使能
TIM_TimeBaseStructure.TIM_Period = arr; //設置在下一個更新事件裝入活動的自動重裝載寄存器周期的值 計數到5000為500ms
TIM_TimeBaseStructure.TIM_Prescaler =psc; //設置用來作為TIMx時鐘頻率除數的預分頻值 10Khz的計數頻率
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //設置時鐘分割:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上計數模式
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //根據TIM_TimeBaseInitStruct中指定的參數初始化TIMx的時間基數單位
TIM_ITConfig( TIM4,TIM_IT_Update , ENABLE );
NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn; //TIM3中斷
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占優先級0級
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //從優先級3級
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //根據NVIC_InitStruct中指定的參數初始化外設NVIC寄存器
TIM_Cmd(TIM4, ENABLE); //使能TIMx外設
}
void TIM5_Int_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE); //時鐘使能
TIM_TimeBaseStructure.TIM_Period = arr; //設置在下一個更新事件裝入活動的自動重裝載寄存器周期的值 計數到5000為500ms
TIM_TimeBaseStructure.TIM_Prescaler =psc; //設置用來作為TIMx時鐘頻率除數的預分頻值 10Khz的計數頻率
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //設置時鐘分割:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上計數模式
TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure); //根據TIM_TimeBaseInitStruct中指定的參數初始化TIMx的時間基數單位
TIM_ITConfig( TIM5,TIM_IT_Update , ENABLE );
NVIC_InitStructure.NVIC_IRQChannel = TIM5_IRQn; //TIM3中斷
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占優先級0級
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //從優先級3級
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
NVIC_Init(&NVIC_InitStructure); //根據NVIC_InitStruct中指定的參數初始化外設NVIC寄存器
TIM_Cmd(TIM5, ENABLE); //使能TIMx外設
}
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