Create a Freertos task with ota example

Libraries
1

Hi amazing community…

I would like to run this amazing example

https://github.com/ayushsharma82/ElegantOTA/blob/master/examples/ESP32_Demo/ESP32_Demo.ino

But inside a freertos task in this way

void Seventh_task_creation(void)
{
  xTaskCreate(Webserver_task ,"WEBSERVER",WEBSERVER_DELAY, NULL, Webserver_priority , &Task7_handle);
 
}

where

void Webserver_task(void *parameters)
{
   /*init of the ble task with properties*/
   web_portal_init();

   for(;;)
   {
    
   }
}

and inside the web_init fuinction basically there is the example inside the setup function …

void web_portal_init(void) 
{

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);

  // Wait for connection
  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  } 
  // Wait for connection
  Serial.println(WiFi.localIP());

  local_server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) 
  {
    request->send(200, "text/plain", "Hi! I am ESP32.");
  });

  AsyncElegantOTA.begin(&local_server);    // Start ElegantOTA
 local_server.begin();
  Serial.println("HTTP server started");
  local_server.end(); 
}

Each time I try I get

ERROR A stack overflow in task WEBSERVER has been detected.
abort() was called at PC 0x40088a70 on core 0

Can you tell me what is wrong ?

Thanks a lot

2

The third entry is how much stack memory in words (á 4 bytes) you want to give the task, see

DELAY is a strange name for that. Have you tried putting a number like 32*1024 as the third argument?

1 Like
3

I need holiday Max… Instead of putting WEBSERVER_TASK_SIZE i used the delay…

xTaskCreate(Webserver_task ,"WEBSERVER",STACK_SIZE_WEBSERVER_TASK, NULL, Webserver_priority , &Task7_handle);

No I don’t have anymore the problem with the stack overflow…
The task is running but when I try to insert the ip address on the browser I don’t get
the result from the webserver…
The example without using the freeRTOS task was running ok without issues…

This is how the task is defined…

void Webserver_task(void *parameters)
{
   /*init of the ble task with properties*/
   web_portal_init();

   for(;;)
   {
    //vTaskDelay(WEBSERVER_DELAY/portTICK_PERIOD_MS);
   }
}

this is the main.cpp

void setup(void)
{    

     /*start serial communication for debug purpose*/
     Serial.begin(115200); 

     /*creation of the queues for exchange data*/
/*      Create_queue_for_exchange_alarms_between_uart_and_wifi();
     Create_queue_for_exchange_log_between_uart_and_wifi();
     Create_queue_for_exchange_state_between_uart_and_wifi();
     Create_queue_for_exchange_physics_between_uart_and_wifi();

     Create_queue_for_exchange_commands_between_wifi_and_uart();
     Create_queue_for_exchange_config_between_wifi_and_uart();
     Create_queue_for_exchange_program_upload_between_wifi_and_uart(); */


     /*tasks creation*/ 
     //First_task_creation();
     //Second_task_creation();
     //Third_task_creation();
     //Fourth_task_creation();
     //Fifth_task_creation();
     //Sixth_task_creation();
     Seventh_task_creation();

     


}
/**
  * @brief  Function to execute in loop generated by the arduino framework
  * @param  None
  * @retval None
  */

void loop(void)
{
}

Thanks as usual for your time

4

Hard to say without the full code. Can you insert some Serial.println() statements to see whether it reaches certain parts of the code in the loop?

5

Max… find the issue… I was stopping the webservrr inside the init function…
Now it works inside the freertos task…
Now i will try to run this just created task with another task that transmit data over wifi with mqtt using the google iot library…
Let’see if i have problems with concurrecy…
For the moment thanks a lot as always

1 Like