Installing Arduino IDE

• https://www.arduino.cc/en/software
  • Download the version of Arduino IDE that matches the type of PC you are using.
    • The example below describes the procedure for “macOS Apple Silicon, 11: “Big Sur” or newer, 64 bits”
      • At the time this Quick Start Guide was created, operation had been confirmed with version “Arduino IDE 2.3.4”

Launching Arduino IDE

• Unzip the ZIP file and double-click the icon to launch the Arduino IDE.

Using Boards Manager to Install Tools

• Select Board Manager Icon.

• In the text entry box, enter "rl78" and perform a search, then click the Install button.

• The compiler, Arduino library for Fast Prototyping Board, and board programming tool are downloaded and installed in Arduino IDE.

Writing a sketch to make an LED flash at 1.0-second intervals.

• Select "File" → "Examples" → "01.Basics" → "Blink".

Hardware Setup

• Connect the PC to the RL78/G23-64p Fast Prototyping Board using a USB cable.

• Configure the port number setting in Arduino IDE.

  • Select "Tools"→"Port"→"/dev/cu.usbserial-XXX"

• Select the board in Arduino IDE.
  • Select "Tools" → "Board" → Select board to use.

Compiling, Uploading, and Running Sketch

• In Arduino IDE, select "Sketch" → "Upload" to compile and upload the sketch.

• When the upload completes, the sketch runs and the LED flashes at 1.0-second intervals.

If build errors occur

• If the error message is “bad CPU type in executable".

  • Execute the following commands in a terminal window. softwareupdate --install-rosetta

• If the error message is “Library not loaded: /opt/homebrew/opt/zstd/lib/libzstd.1.dylib".

  • Execute the following commands in a terminal window. brew install zstd
  • If you cannot use the brew command, install Homebrew from https://brew.sh/.