ESP32 OTA Update hat nach Reboot / Code Upload keinen Effekt

esp_ota_begin

esp_ota_write

esp_ota_end

esp_ota_set_boot_partition

ESP.restart

void PerformOTAUpdate(File &firmware) {

   const esp_partition_t *app1_partition = esp_partition_find_first(ESP_PARTITION_TYPE_APP, ESP_PARTITION_SUBTYPE_APP_OTA_1, NULL);

   if (!app1_partition) {

       USBSerial.println("Error: app1 partition not found!");

       return;

   }

   esp_ota_handle_t ota_handle;

   if (esp_ota_begin(app1_partition, OTA_SIZE_UNKNOWN, &ota_handle) != ESP_OK) {

       USBSerial.println("Failed to start OTA update!");

       return;

   }

   USBSerial.printf("Starting OTA update to %s...\n", app1_partition->label);

   size_t written = 0;

   uint8_t buf[1024];

   // write from SPIFFS to OTA app1 partition

   while (firmware.available()) {

       size_t readBytes = firmware.read(buf, sizeof(buf));

       if (readBytes > 0) {

           if (esp_ota_write(ota_handle, buf, readBytes) != ESP_OK) {

               USBSerial.println("Error writing OTA data!");

               esp_ota_end(ota_handle);

               return;

           }

           written += readBytes;

           USBSerial.printf("Written %d bytes...\n", written);

       }

   }

   if (esp_ota_end(ota_handle) != ESP_OK) {

       USBSerial.println("Error finalizing OTA update!");

       return;

   }

   // sets poot partition and restarts

   USBSerial.println("Update to app1 complete! Switching to app1...");

   if (esp_ota_set_boot_partition(app1_partition) == ESP_OK) {

       USBSerial.println("Switched to app1. Rebooting...");

       delay(1000);

       ESP.restart();

   } else {

       USBSerial.println("Failed to set app1 as boot partition!");

   }

}

void setup()

{

... // initialize Serial

esp_ota_mark_app_valid_cancel_rollback();

check_boot_partition(); // displays current boot partition

}