ESP32S3 OTA

[tqh_vn]

Hi everyone. Have a good day for all. I use Arduino IDE with ESP32 board V3.0.0-alpha3. When updating the firmware (OTA) my ESP32S3 rebooted. The restart occurs when running to the "Update.write" function.
This is the debugging section:

Code: Untitled.txt Select all

 

Begin OTA. Wait updating ...

OTA: 1%

OTA: 2%

OTA: 3%

OTA: 4%

OTA: 5%

OTA: 6%

OTA: 7%

OTA: 8%

ESP-ROM:esp32s3-20210327

Build:Mar 27 2021

rst:0x8 (TG1WDT_SYS_RST),boot:0x28 (SPI_FAST_FLASH_BOOT)

Saved PC:0x403743c0

SPIWP:0xee

mode:DIO, clock div:1

Here is my source code:

Code: Untitled.cpp Select all

#define CPR_ESP32OTA_HTTP_TIMEOUT     10000 //millis

#define CPR_ESP32OTA_BIN_BUF_SIZE     4096

bool CprESP32OTA::execOTA(UpdateClass::THandlerFunction_Progress fnProgress)

{

  String url = "http://" + _host + _bin;

  HTTPClient http;

  http.setConnectTimeout(CPR_ESP32OTA_HTTP_TIMEOUT);

  http.setTimeout(CPR_ESP32OTA_HTTP_TIMEOUT);

  if(!http.begin(url))

  {

    Serial.printf("execOTA (%s): HTTP begin FAILED\n", url.c_str());

    return false;

  }

  if (http.GET() == HTTP_CODE_OK) //200

  {

    int totalLength = http.getSize();

    Serial.printf("%s: SIZE = %d\n", url.c_str(), totalLength);

    if(!Update.begin(totalLength))

    {

      Serial.printf("Update.begin ERR: %d (%s)\n", Update.getError(), Update.errorString());

      http.end();

      return false;

    }

    Serial.println("Begin OTA. Wait updating ...");

    // create buffer for read

    //uint8_t buff[CPR_ESP32OTA_BIN_BUF_SIZE] = { 0 }; 

    uint8_t *bin_buf = NULL;

    bin_buf = (uint8_t*)malloc(CPR_ESP32OTA_BIN_BUF_SIZE);

    memset(bin_buf, 0, CPR_ESP32OTA_BIN_BUF_SIZE);



    WiFiClient* stream = http.getStreamPtr(); // get tcp stream

    // read all data from server

    int dataWritten = 0;

    while (http.connected() && dataWritten < totalLength)

    {

      size_t sizeAvail = stream->available();

      if (sizeAvail > 0)

      {

        size_t bytes_to_read = min(sizeAvail, size_t(CPR_ESP32OTA_BIN_BUF_SIZE));

        //Serial.printf("bytes_to_read = %d\n", bytes_to_read);

        size_t bytes_read = stream->readBytes((char*)bin_buf, bytes_to_read);

        //Serial.printf("bytes_to_read = %d, bytes_read = %d\n", bytes_to_read, bytes_read);

        size_t bytes_written = Update.write(bin_buf, bytes_read);

        //Serial.printf("bytes_to_read = %d, bytes_read = %d, bytes_written = %d\n", bytes_to_read, bytes_read, bytes_written);

        if (bytes_read != bytes_written)

        {

          Serial.printf("Update.write ERR: %d %d %d\n", bytes_to_read, bytes_read, bytes_written);

          break;

        }

        dataWritten += bytes_written;

        if (fnProgress != NULL) fnProgress(dataWritten, totalLength);

      }

      //esp_task_wdt_reset();

    }

    free(bin_buf);

    bin_buf = NULL;

    if (dataWritten == totalLength)

      Serial.println("Written : " + String(dataWritten) + " successfully");

    else

      Serial.println("Written only : " + String(dataWritten) + "/" + String(totalLength));

    if (Update.end())

    {

      Serial.println("OTA done!");

      if (Update.isFinished())

      {

        Serial.println("Update completed. execOTA END");

        http.end();

        return true;

      }

      else

        Serial.println("Update not finished? Something went wrong!");

    }

    else

      Serial.printf("Update.end ERR: %d (%s)\n", Update.getError(), Update.errorString());

  }

  http.end();

  return false;

}

Please help me overcome this difficulty.

[lbernstone]

Unremark line 44 (prints bytes written), and see if you get a final bytes written without a corresponding OTA percentage. Calling fnProgress is the most likely source of the error.

[tqh_vn]

Thanks for reply.

Unremark line 44 (prints bytes written), and see if you get a final bytes written without a corresponding OTA percentage

The ESP32S3 was restarted while running inside the Update.write function

Calling fnProgress is the most likely source of the error.

I checked again and this function is not the cause
Luckily, I just found a solution. Turn off the camera (esp_Camera_deinit()) before performing OTA. I will continue to test on many other boards.