中断测试实验，关闭中断，定时器5没有被关闭怎么回事

按手册上敲的，但定时器5还是一直在运行任务函数
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void interrupt_task(void *pvParameters){static u32 total_num=0;while(1){total_num += 1;if(total_num == 5){printf("关闭中断.........rn");portDISABLE_INTERRUPTS();//关闭中断delay_ms(5000);//延时5sprintf("打开中断.........rn");//打开中断portENABLE_INTERRUPTS();//打开中断}LED0 =~ LED0;vTaskDelay(1000);}}
定时器的定义
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void TIM3_Int_Init(u16 arr,u16 psc){TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;NVIC_InitTypeDef NVIC_InitStructure;RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);  ///使能TIM2时钟  TIM_TimeBaseInitStructure.TIM_Period = arr; //自动重装载值TIM_TimeBaseInitStructure.TIM_Prescaler=psc;  //定时器分频TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up; //向上计数模式TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1; TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStructure);//初始化TIM3TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE); //允许定时器3更新中断TIM_Cmd(TIM3,ENABLE); //使能定时器3NVIC_InitStructure.NVIC_IRQChannel=TIM3_IRQn; //定时器3中断NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x04; //抢占优先级4NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x00; //子优先级0NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;NVIC_Init(&NVIC_InitStructure);}
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void TIM5_Int_Init(u16 arr,u16 psc){TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;NVIC_InitTypeDef NVIC_InitStructure;RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5,ENABLE);  ///使能TIM5时钟  TIM_TimeBaseInitStructure.TIM_Period = arr; //自动重装载值TIM_TimeBaseInitStructure.TIM_Prescaler=psc;  //定时器分频TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up; //向上计数模式TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1; TIM_TimeBaseInit(TIM5,&TIM_TimeBaseInitStructure);//初始化TIM5TIM_ITConfig(TIM5,TIM_IT_Update,ENABLE); //允许定时器5更新中断TIM_Cmd(TIM5,ENABLE); //使能定时器5NVIC_InitStructure.NVIC_IRQChannel=TIM5_IRQn; //定时器5中断NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x05; //抢占优先级5NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x00; //子优先级0NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;NVIC_Init(&NVIC_InitStructure);}