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ESP32 Demo FreeRTOS Task List​

nameversion
SystemUbuntu 20.04
CMake3.10 ≥
ESP-IDFmaster--v5.1
ESP-IDF Programming GuideLogov5.1
DeviceESP32-S3-WROOM-1

创建空项目

  • 激活环境
. ~/esp/esp-idf/export.sh
  • 创建项目
idf.py create-project ${project_name}

vTaskList​

void vTaskList( char *pcWriteBuffer );

示例代码

FreeRTOS_Task_List.c
#include <stdio.h>
#include <stdlib.h>
#include "esp_log.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_system.h"

void esp_task_list(void)
{
    char *p_buffer = (char *)calloc(1, 2048);
    printf("*****************heap:%lu******************\n", esp_get_free_heap_size());
    vTaskList(p_buffer);
    printf("Task           State   Prio    Stack    Num\n");
    printf("-------------------------------------------\n");
    printf("%s", p_buffer);
    printf("*******************************************\n");
    free(p_buffer);
}

void app_main(void)
{
   while (1) {
       esp_task_list();
       vTaskDelay(3000 / portTICK_PERIOD_MS);
   }
}
危险

使用 vTaskList() 前需使能:

  • make menuconfig -> Component config -> FreeRTOS -> Enable FreeRTOS trace facility
  • make menuconfig -> Component config -> FreeRTOS -> Enable FreeRTOS trace facility -> Enable FreeRTOS stats formatting functions

通过上面配置，等同于使能 FreeRTOSConfig.h 中如下两个宏: configUSE_TRACE_FACILITY 和 configUSE_STATS_FORMATTING_FUNCTIONS

  • 可以直接在 CMakeLists.txt 中使用 add_compile_definitions 使能这两个宏
CMakeLists.txt
cmake_minimum_required(VERSION 3.16)

add_compile_definitions(configUSE_TRACE_FACILITY=1)
add_compile_definitions(configUSE_STATS_FORMATTING_FUNCTIONS=1)

include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(FreeRTOS_Task_List)

编译运行后执行结果，结果如下

参考​