Update onboard ESP32 firmware

    Introduction:

    In the MaixPy series of development boards, MaixDuino has an ESP32 WIFI SOC onboard. By default, we don’t need to update the onboard ESP32 module, but we find that there are bugs in the use process and fix them, we need to update the repaired firmware.

    Update ESP32 firmware steps

    Preparation

    • Hardware: MaixDuino, USB Type-C data cable
    • Software: ESPFLASH

    • ESP32 firmware update tool: ESP32 flash_download_tools
      -Download link: flash_download_tools

    • ESP32 MaixDuino firmware:
      -Download link: flash_download_tools

    Update process:

    1. Download flash_download_tools,

      flash_download_tools
      flash_download_tools

    2. Download MaixDuino ESP32 firmware
      update esp32

    3. Connect MaixDuino, select ESP32 serial port (usually the serial port number is relatively large)

    4. Set download options:

      1. Configure the corresponding options as shown in the figure, and note that the baud rate must be set to 115200

      b6474ddd5340cc9b7cf6006f75974a7b.png
      acf618a24b4cb8c5f8c2e98acc6cf11b.png

    5. Click Start to update the firmware and wait for the update to complete

    6. Verify that the update is complete

      1. Using XCOM, open the ESP32 serial port, click RST to reset ESP32, the flashing is successful as shown in the figure

      96e955badd7450e7b5ba58230ae12c48.png