Configure GIGA R1 WiFi for Over-The-Air (OTA) uploads [HC-1419] (#325)

* New article: Configure GIGA R1 WiFi for Over-The-Air (OTA) uploads

* memory → flash memory

* Update content/Hardware Support/GIGA R1/Configure-GIGA-R1-WiFi-for-Over-The-Air-OTA-uploads.md

Co-authored-by: Josefine Hansson <66409231+jhansson-ard@users.noreply.github.com>

* Include relevant error messages in introduction

* Clean up opening paragraph in firmware section

* Punctuation fix

---------

Co-authored-by: Josefine Hansson <66409231+jhansson-ard@users.noreply.github.com>

Author: seaxwi

content/Hardware Support/GIGA R1/Configure-GIGA-R1-WiFi-for-Over-The-Air-OTA-uploads.md

@@ -0,0 +1,70 @@
+---
+title: "Configure GIGA R1 WiFi for Over-The-Air (OTA) uploads"
+---
+
+Learn how to enable [Over-The-Air (OTA) uploads](https://docs.arduino.cc/arduino-cloud/features/ota-getting-started/) 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
+
+> **Note:** The required sketch examples are currently not available in the Web Editor.
+
+1. Open Arduino IDE.
+
+1. Connect your GIGA R1 WiFi to your computer with a USB-C cable.
+
+1. 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.
+
+1. Select your GIGA R1 WiFi in the board selector, or use the _Tools > Port_ and _Tools > Board_ menus.
+
+1. In the top menu bar, open **File > Examples** list. Under the _Examples for Arduino Giga R1_ group, select **STM32H747_System > QSPIFormat**.
+
+1. Click ![Upload button](img/symbol_upload2.png) **Upload** and wait for the sketch upload to complete.
+
+---
+
+<a id="flash-the-wi-fi-firmware"></a>
+
+## 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**.
+
+1. Click ![Upload button](img/symbol_upload2.png) **Upload** to upload the sketch.
+
+1. Open the Serial Monitor using one of these methods:
+
+   * Click the ![Serial Monitor button](img/symbol_monitor.png) button in the top-right corner.
+
+   * Select _Tools > Serial Monitor_ in the menu bar.
+
+1. If the Serial Monitor is empty, run the sketch again by pressing the **RST** button on the board.
+
+   ![The RST button on GIGA R1 WiFi.](img/GIGA-R1-button-RST.png)
+
+1. 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 <kbd>Enter</kbd> to send.
+
+1. Wait until `Firmware and certificates updated!` appears in the Serial Monitor output.