STM32F407_FreeRTOS_LwIP调试详解二：源码调试

本例使用的是STM32F407_FreeRTOS_LwIP调试详解一:Cube_MX生成工程中所生成的工程，在此工程基础上，添加tcpecho.c文件：

• Main
• MX_FREERTOS_Init
• StartDefaultTask
• tcpecho_init

---

main

int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration----------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART1_UART_Init();

  /* USER CODE BEGIN 2 */
    System_Info();
  /* USER CODE END 2 */

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

  /* Start scheduler */
  osKernelStart();

  /* We should never get here as control is now taken by the scheduler */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
  /* USER CODE END WHILE */

  /* USER CODE BEGIN 3 */

  }
  /* USER CODE END 3 */

}

MX_FREERTOS_Init

void MX_FREERTOS_Init(void) {
  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* USER CODE BEGIN RTOS_MUTEX */
  /* add mutexes, ... */
  /* USER CODE END RTOS_MUTEX */

  /* USER CODE BEGIN RTOS_SEMAPHORES */
  /* add semaphores, ... */
  /* USER CODE END RTOS_SEMAPHORES */

  /* USER CODE BEGIN RTOS_TIMERS */
  /* start timers, add new ones, ... */
  /* USER CODE END RTOS_TIMERS */

  /* Create the thread(s) */
  /* definition and creation of defaultTask */
  osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 128);
  defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);

  /* definition and creation of TaskList */
  osThreadDef(TaskList, TaskList_Stats, osPriorityIdle, 0, 128);
  TaskListHandle = osThreadCreate(osThread(TaskList), NULL);

  /* USER CODE BEGIN RTOS_THREADS */
  /* add threads, ... */
  /* USER CODE END RTOS_THREADS */

  /* USER CODE BEGIN RTOS_QUEUES */
  /* add queues, ... */
  /* USER CODE END RTOS_QUEUES */
}

StartDefaultTask

void StartDefaultTask(void const * argument)
{
  /* init code for LWIP */
  MX_LWIP_Init();

  /* USER CODE BEGIN StartDefaultTask */

    /*Initialize tcp echo server*/
    tcpecho_init();

    vTaskList((char *)&pcWriteBuffer);
    printf("\r\n任务名      任务状态  优先级  剩余栈  任务序号\r\n");
    printf("%s\r\n",pcWriteBuffer); 

  for(;;)
  {
    HAL_GPIO_TogglePin(LED0_GPIO_Port,LED0_Pin);
        osDelay(500);
  }
  /* USER CODE END StartDefaultTask */
}

tcpecho_init

/*-----------------------------------------------------------------------------------*/

void tcpecho_init(void)
{
//  sys_thread_t n;
    sys_thread_new("tcpecho_thread", tcpecho_thread, NULL, DEFAULT_THREAD_STACKSIZE, TCPECHO_THREAD_PRIO);
//  printf("return=%d \r\n",n);
}
/*-----------------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------------------*/
static void tcpecho_thread(void *arg)
{
  struct netconn *conn, *newconn;
  err_t err, accept_err;
  struct netbuf *buf;
  void *data;
  u16_t len;

  LWIP_UNUSED_ARG(arg);

  /* Create a new connection identifier. */
  conn = netconn_new(NETCONN_TCP);

  if (conn!=NULL)
  {  
    /* Bind connection to well known port number 7. */
    err = netconn_bind(conn, NULL, 7);

    if (err == ERR_OK)
    {
      /* Tell connection to go into listening mode. */
      netconn_listen(conn);

      while (1) 
      {
        /* Grab new connection. */
         accept_err = netconn_accept(conn, &newconn);

        /* Process the new connection. */
        if (accept_err == ERR_OK) 
        {

          while (netconn_recv(newconn, &buf) == ERR_OK) 
          {
            do 
            {
              netbuf_data(buf, &data, &len);
              netconn_write(newconn, data, len, NETCONN_COPY);

            } 
            while (netbuf_next(buf) >= 0);

            netbuf_delete(buf);
          }

          /* Close connection and discard connection identifier. */
          netconn_close(newconn);
          netconn_delete(newconn);
        }
      }
    }
    else
    {
      netconn_delete(newconn);
      printf(" can not bind TCP netconn\r\n");

    }
  }
}
/*-----------------------------------------------------------------------------------*/

ping 192.168.1.10

TCP测试工具连接并成功返回

工程链接：https://download.csdn.net/download/hpw99/10437622