FreeRTOS 创建开始任务，启动调度后无法进入开始任务函数？

xinger · 发表于 2018-6-1 10:47:45

源码如下：麻烦各位大神帮忙看下是什么原因导致，谢谢。
#include "led.h"
#include "delay.h"
#include "sys.h"

#include "FreeRTOS.h"
#include "task.h"

//任务优先级
#define START_TASK_PRIO 1
//任务堆栈大小
#define START_STK_SIZE 128
//任务句柄
TaskHandle_t StartTask_Handler;
//任务函数
void start_task(void *pvParameters);

//任务优先级
#define LED0_TASK_PRIO 2
//任务堆栈大小
#define LED0_STK_SIZE 128//50
//任务句柄
TaskHandle_t LED0Task_Handler;
//任务函数
void led0_task(void *pvParameters);

int main(void)
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);//设置系统中断优先级分组4
delay_init();            //延时函数初始化
LED_Init();       //初始化与LED连接的硬件接口

//创建开始任务
xTaskCreate((TaskFunction_t )start_task,          //任务函数
            (const char* )"start_task",       //任务名称
            (unsigned int    )START_STK_SIZE,       //任务堆栈大小
            (void*       )NULL,                //传递给任务函数的参数
            (UBaseType_t )START_TASK_PRIO,    //任务优先级
            (TaskHandle_t*  )&StartTask_Handler); //任务句柄
vTaskStartScheduler();       //开启任务调度
// while(1);
}

//开始任务任务函数
void start_task(void *pvParameters)
{
taskENTER_CRITICAL();          //进入临界区
//创建LED0任务
xTaskCreate((TaskFunction_t )led0_task,
            (const char* )"led0_task",
            (uint16_t    )LED0_STK_SIZE,
            (void*       )NULL,
            (UBaseType_t )LED0_TASK_PRIO,
            (TaskHandle_t*  )&LED0Task_Handler);
vTaskDelete(StartTask_Handler); //删除开始任务
taskEXIT_CRITICAL();          //退出临界区
}

//LED0任务函数
void led0_task(void *pvParameters)
{
while(1)
{
// GPIO_ResetBits(GPIOA,GPIO_Pin_8); //LED0输出低
GPIO_SetBits(GPIOB,GPIO_Pin_15);//LED1输出高
delay_ms(300);
// GPIO_SetBits(GPIOA,GPIO_Pin_8);//LED0输出高
GPIO_ResetBits(GPIOB,GPIO_Pin_15);//LED1输出低
delay_ms(3000);
}
}

FreeRTOSConfig.h源码如下：

#ifndef FREERTOS_CONFIG_H
#define FREERTOS_CONFIG_H

#include "sys.h"
#include "usart.h"
//?????????????stdint.h??
#if defined(__ICCARM__) || defined(__CC_ARM) || defined(__GNUC__)
#include <stdint.h>
extern uint32_t SystemCoreClock;
#endif

//??
#define vAssertCalled(char,int) printf("Error:%s,%d\r\n",char,int)
#define configASSERT(x) if((x)==0) vAssertCalled(__FILE__,__LINE__)

/***************************************************************************************************************/
/*                                     FreeRTOS????????                                           */
/***************************************************************************************************************/
#define configUSE_PREEMPTION 1                      //1???????,0????
#define configUSE_TIME_SLICING 1 //1???????(??????)
#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1                      //1??????????????????
                                                                     //????????????,??????
                                                                     //MCU?????????????????0!
#define configUSE_TICKLESS_IDLE 0                      //1?????tickless??
#define configUSE_QUEUE_SETS 1                      //?1?????
#define configCPU_CLOCK_HZ (SystemCoreClock)    //CPU??
#define configTICK_RATE_HZ (200)                //??????,?????1000,????1ms
#define configMAX_PRIORITIES (32)                   //?????????
#define configMINIMAL_STACK_SIZE ((unsigned short)130) //???????????
#define configMAX_TASK_NAME_LEN (16)                   //?????????

#define configUSE_16_BIT_TICKS 0                      //?????????????,
                                                                     //1???16??????,0???32??????
#define configIDLE_SHOULD_YIELD 1                      //?1???????CPU???????????????
#define configUSE_TASK_NOTIFICATIONS          1                      //?1?????????,????
#define configUSE_MUTEXES 1                      //?1????????
#define configQUEUE_REGISTRY_SIZE 8                      //??0?????????,???????
                                                                     //??????????????
#define configCHECK_FOR_STACK_OVERFLOW 0                      //??0???????????,???????
                                                                     //???????????????,??????
                                                                     //?????1??2,?????????????
#define configUSE_RECURSIVE_MUTEXES 1                      //?1??????????
#define configUSE_MALLOC_FAILED_HOOK 0                      //1????????????
#define configUSE_APPLICATION_TASK_TAG 0
#define configUSE_COUNTING_SEMAPHORES 1                      //?1????????

/***************************************************************************************************************/
/*                               FreeRTOS???????????                                              */
/***************************************************************************************************************/
#define configSUPPORT_DYNAMIC_ALLOCATION       1                      //????????
#define configTOTAL_HEAP_SIZE ((size_t)(20*1024))    //?????????

/***************************************************************************************************************/
/*                               FreeRTOS????????????                                           */
/***************************************************************************************************************/
#define configUSE_IDLE_HOOK 0                      //1,??????;0,???
#define configUSE_TICK_HOOK 0                      //1,???????;0,???

/***************************************************************************************************************/
/*                               FreeRTOS???????????????????                               */
/***************************************************************************************************************/
#define configGENERATE_RUN_TIME_STATS          0                      //?1???????????
#define configUSE_TRACE_FACILITY 1                      //?1?????????
#define configUSE_STATS_FORMATTING_FUNCTIONS 1                      //??configUSE_TRACE_FACILITY???1??????3???
                                                                     //prvWriteNameToBuffer(),vTaskList(),
                                                                     //vTaskGetRunTimeStats()

/***************************************************************************************************************/
/*                               FreeRTOS??????????                                                 */
/***************************************************************************************************************/
#define configUSE_CO_ROUTINES          0                      //?1?????,????????????croutine.c
#define configMAX_CO_ROUTINE_PRIORITIES       ( 2 )                //??????????

/***************************************************************************************************************/
/*                               FreeRTOS?????????????                                           */
/***************************************************************************************************************/
#define configUSE_TIMERS          1                            //?1????????
#define configTIMER_TASK_PRIORITY          (configMAX_PRIORITIES-1)       //????????
#define configTIMER_QUEUE_LENGTH          5                            //?????????
#define configTIMER_TASK_STACK_DEPTH          (configMINIMAL_STACK_SIZE*2) //???????????

/***************************************************************************************************************/
/*                               FreeRTOS????????                                                    */
/***************************************************************************************************************/
#define INCLUDE_xTaskGetSchedulerState       1
#define INCLUDE_vTaskPrioritySet          1
#define INCLUDE_uxTaskPriorityGet          1
#define INCLUDE_vTaskDelete          1
#define INCLUDE_vTaskCleanUpResources          1
#define INCLUDE_vTaskSuspend          1
#define INCLUDE_vTaskDelayUntil          1
#define INCLUDE_vTaskDelay          1
#define INCLUDE_eTaskGetState          1
#define INCLUDE_xTimerPendFunctionCall          1

/***************************************************************************************************************/
/*                               FreeRTOS??????????                                                 */
/***************************************************************************************************************/
#ifdef __NVIC_PRIO_BITS
#define configPRIO_BITS    __NVIC_PRIO_BITS
#else
#define configPRIO_BITS    4
#endif

#define configLIBRARY_LOWEST_INTERRUPT_PRIORITY 15                   //???????
#define configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY 5                      //?????????????
#define configKERNEL_INTERRUPT_PRIORITY ( configLIBRARY_LOWEST_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
#define configMAX_SYSCALL_INTERRUPT_PRIORITY ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )

/***************************************************************************************************************/
/*                               FreeRTOS??????????????                                        */
/***************************************************************************************************************/
#define xPortPendSVHandler PendSV_Handler
#define vPortSVCHandler SVC_Handler

#endif /* FREERTOS_CONFIG_H */