Learn how to enable Over-The-Air (OTA) uploads for your GIGA R1 WiFi board.

Follow these steps if you experience any of these errors when attempting an OTA upload:

• Error while mounting the filesystem. Err = -5
• Arduino_Portenta_OTA::begin() failed with error code -3

1. Connect your GIGA R1 WiFi board to Arduino IDE

1. Open Arduino IDE.

2. Connect your GIGA R1 WiFi to your computer with a USB-C cable.

3. Open the board selector and Arduino Giga R1 or use the Tools > Port and Tools > Board menus.

2. Format the flash memory

First, you need to format the board’s Quad Serial Peripheral Interface (QSPI) flash memory.

Follow these steps:

1. Connect your GIGA R1 WiFi to your computer using a USB-C cable.

2. Select your GIGA R1 WiFi in the board selector, or use the Tools > Port and Tools > Board menus.

3. In the top menu bar, open File > Examples list. Under the Examples for Arduino Giga R1 group, select STM32H747_System > QSPIFormat.

4. Click Upload and wait for the sketch upload to complete.

3. Flash the Wi-Fi firmware

Flash the latest Wi-Fi firmware version to the board.

Follow these steps:

1. In the top menu bar, open File > Examples > STM32H747_System > WiFiFirmwareUpdater.

2. Click Upload to upload the sketch.

3. Open the Serial Monitor using one of these methods:

   • Click the button in the top-right corner.

   • Select Tools > Serial Monitor in the menu bar.

4. If the Serial Monitor is empty, run the sketch again by pressing the RST button on the board.

   

5. If you get this message:

   A WiFi firmware is already installed. Do you want to install the firmware anyway? Y/[n]

   If you do, type Y into the text field and press Enter to send.

6. Wait until Firmware and certificates updated! appears in the Serial Monitor output.