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: [Select all] [Expand/Collapse]

1.  
2. Begin OTA. Wait updating ...
3. OTA: 1%
4. OTA: 2%
5. OTA: 3%
6. OTA: 4%
7. OTA: 5%
8. OTA: 6%
9. OTA: 7%
10. OTA: 8%
11. ESP-ROM:esp32s3-20210327
12. Build:Mar 27 2021
13. rst:0x8 (TG1WDT_SYS_RST),boot:0x28 (SPI_FAST_FLASH_BOOT)
14. Saved PC:0x403743c0
15. SPIWP:0xee
16. mode:DIO, clock div:1

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Here is my source code:

Code: [Select all] [Expand/Collapse]

1. #define CPR_ESP32OTA_HTTP_TIMEOUT     10000 //millis
2. #define CPR_ESP32OTA_BIN_BUF_SIZE     4096
3. bool CprESP32OTA::execOTA(UpdateClass::THandlerFunction_Progress fnProgress)
4. {
5.   String url = "http://" + _host + _bin;
6.   HTTPClient http;
7.   http.setConnectTimeout(CPR_ESP32OTA_HTTP_TIMEOUT);
8.   http.setTimeout(CPR_ESP32OTA_HTTP_TIMEOUT);
9.   if(!http.begin(url))
10.   {
11.     Serial.printf("execOTA (%s): HTTP begin FAILED\n", url.c_str());
12.     return false;
13.   }
14.   if (http.GET() == HTTP_CODE_OK) //200
15.   {
16.     int totalLength = http.getSize();
17.     Serial.printf("%s: SIZE = %d\n", url.c_str(), totalLength);
18.     if(!Update.begin(totalLength))
19.     {
20.       Serial.printf("Update.begin ERR: %d (%s)\n", Update.getError(), Update.errorString());
21.       http.end();
22.       return false;
23.     }
24.     Serial.println("Begin OTA. Wait updating ...");
25.     // create buffer for read
26.     //uint8_t buff[CPR_ESP32OTA_BIN_BUF_SIZE] = { 0 };
27.     uint8_t *bin_buf = NULL;
28.     bin_buf = (uint8_t*)malloc(CPR_ESP32OTA_BIN_BUF_SIZE);
29.     memset(bin_buf, 0, CPR_ESP32OTA_BIN_BUF_SIZE);
30.  
31.     WiFiClient* stream = http.getStreamPtr(); // get tcp stream
32.     // read all data from server
33.     int dataWritten = 0;
34.     while (http.connected() && dataWritten < totalLength)
35.     {
36.       size_t sizeAvail = stream->available();
37.       if (sizeAvail > 0)
38.       {
39.         size_t bytes_to_read = min(sizeAvail, size_t(CPR_ESP32OTA_BIN_BUF_SIZE));
40.         //Serial.printf("bytes_to_read = %d\n", bytes_to_read);
41.         size_t bytes_read = stream->readBytes((char*)bin_buf, bytes_to_read);
42.         //Serial.printf("bytes_to_read = %d, bytes_read = %d\n", bytes_to_read, bytes_read);
43.         size_t bytes_written = Update.write(bin_buf, bytes_read);
44.         //Serial.printf("bytes_to_read = %d, bytes_read = %d, bytes_written = %d\n", bytes_to_read, bytes_read, bytes_written);
45.         if (bytes_read != bytes_written)
46.         {
47.           Serial.printf("Update.write ERR: %d %d %d\n", bytes_to_read, bytes_read, bytes_written);
48.           break;
49.         }
50.         dataWritten += bytes_written;
51.         if (fnProgress != NULL) fnProgress(dataWritten, totalLength);
52.       }
53.       //esp_task_wdt_reset();
54.     }
55.     free(bin_buf);
56.     bin_buf = NULL;
57.     if (dataWritten == totalLength)
58.       Serial.println("Written : " + String(dataWritten) + " successfully");
59.     else
60.       Serial.println("Written only : " + String(dataWritten) + "/" + String(totalLength));
61.     if (Update.end())
62.     {
63.       Serial.println("OTA done!");
64.       if (Update.isFinished())
65.       {
66.         Serial.println("Update completed. execOTA END");
67.         http.end();
68.         return true;
69.       }
70.       else
71.         Serial.println("Update not finished? Something went wrong!");
72.     }
73.     else
74.       Serial.printf("Update.end ERR: %d (%s)\n", Update.getError(), Update.errorString());
75.   }
76.   http.end();
77.   return false;
78. }

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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.