FreeRTOS中portDISABLE_INTERRUPTS()函数无法guanb

参考原子哥《STM32F429 FreeRTOS开发手册》教程，第四章FreeRTOS中断配置和临界段实验，我利用cubemx+f407创建工程，创建start_task和isr_task任务，在isr_task任务中portDISABLE_INTERRUPTS()函数无法关闭TIM中断（TIM3 中断优先级设置为4，TIM5中断优先级设置为6），求大神赐教。代码如下：

1、main函数初始化TIM和FreeRTOS

[mw_shl_code=applescript,true] MX_TIM3_Init();

MX_TIM5_Init();

/* Call init function for freertos objects (in freertos.c) */

MX_FREERTOS_Init();

/* Start scheduler */

osKernelStart();[/mw_shl_code]

2、任务函数

[mw_shl_code=applescript,true]/* start_task function */

void start_task(void const * argument)

{

/* USER CODE BEGIN start_task */

/* Infinite loop */

printf("start task\r\n");

taskENTER_CRITICAL(); //??è?áù????

printf("start task ??è?áù????\r\n");

osThreadDef(IsrIask, isr_task, osPriorityHigh, 0, 128);

IsrIaskHandle = osThreadCreate(osThread(IsrIask), NULL);

vTaskDelete(S

atartTaskHandle); //é?3y?aê?è???

printf("start task í?3?áù????\r\n");

taskEXIT_CRITICAL(); //í?3?áù????

/* USER CODE END start_task */

}

/* isr_task function */

void isr_task(void const * argument)

{

/* USER CODE BEGIN isr_task */

/* Infinite loop */

static uint32_t total_num = 0;

for(;;)

{

total_num+=1;

printf("total_num = %d\r\n",total_num);

if(total_num==5) 

{

printf("1?±??D??.............\r\n");

portDISABLE_INTERRUPTS(); //1?±??D??

osDelay(5000); //?óê±5s

printf("′ò?a?D??.............\r\n"); //′ò?a?D??

portENABLE_INTERRUPTS();

}

LEDx_StateSet(LED2,LED_TOGGLE);

osDelay(100);

}

/* USER CODE END isr_task */

}[/mw_shl_code]

3、定时器中断服务函数

[mw_shl_code=applescript,true]void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)

{

if(htim==(&htim3))

{

printf("TIM3ê?3?.......\r\n");

}

else if(htim==(&htim5))

{

printf("TIM5ê?3?.......\r\n");

}

}[/mw_shl_code]