Northwestern Micro:bit v2 Base

April 6, 2025 · View on GitHub

Starter code for Northwestern course CE346 based on Micro:bit v2.

This repository has applications and board initialization that connects to the build system provided by nrf52x-base.

Requirements

Various tools
- build-essential (make)
- git
- python3
- pyserial (sudo apt install python3-serial or pipx install pyserial)
ARM cross-compiler toolchain: gcc-arm-none-eabi toolchain

On Ubuntu:
```
sudo apt install gcc-arm-none-eabi
```
On MacOS:
```
brew install gcc-arm-embedded
```
JTAG programming tools: OpenOCD

On Ubuntu:
```
sudo apt install openocd
```
On MacOS:
```
brew install open-ocd
```

Installation

Clone the repository
Change directory into the repository
git submodule update --init --recursive (this will take a couple minutes to complete)

Building and loading applications

To build an application, use make inside of the application's directory.

make flash uploads the application to the board using JTAG.

Getting print data

The Micro:bit v2 prints information through a serial port at 38400 baud. You can connect with any serial terminal, but miniterm comes with pyserial and works pretty well for this.

$ pyserial-miniterm /dev/ttyACM0 38400