For this class, you will need to install the following software:
arm-none-eabitoolchain, which includes a C x86 to ARM cross-compiler which compiles C code on your x86 machine to ARM machine code which can run on the Raspberry Pi.
If you are on a Mac, follow all the instructions on this page.
To ease the installation process for the
arm-none-eabi tools on OS X, we have
built and packaged them into a Homebrew formula for you.
Homebrew is a popular package
manager for OS X. It is good
practice to install software using a package manager.
If you aren’t yet using Homebrew, use these instruction to get Homebrew up and running. If you are already using Homebrew, skip to the next section.
Install the Xcode command line tools by running the command below. A dialog should pop up on your screen. Click “Install” when it appears.
$ xcode-select --install
Run Homebrew’s install script by using the command below. The script will guide you through the rest of the install process.
$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
“Tap” into the CS107e Homebrew packages repository using the command below. This allows you to use the Homebrew formulas we have provided.
$ brew tap cs107e/cs107e
$ brew install arm-none-eabi
Ensure it works by running the following command and checking that its output is identical to what is displayed below:
$ arm-none-eabi-gcc --version arm-none-eabi-gcc (GCC) 4.8.3 Copyright (C) 2013 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
To use the console cable to send information from and to your Pi, you’ll need to install a few things. These instructions will guide you through those steps.
Install the CP210x USB to UART Drivers
of the drivers. Clicking on the download link will download the file
Mac_OSX_VCP_Driver.zip. Opening this file will uncompress and you will
see a new file,
SiLabsUSBDriverDisk.dmg. Opening the dmg file, will mount
You should see a volume named “Silicon Labs VCP Driver Install Disk” in the finder under devices. Going to that folder, you will see an installed named “Silicon Labs VCP Driver.” Opening that file will launch the installer. Follow the instructions to complete the installation. You will need to restart the computer after the installation.
NOTE: Users of the latest macOS (known issue on High Sierra Version
10.13.1) may see a message saying “System Extension Blocked”. Open the
Security & Privacy menu in
Settings. Under the
General tab, click the
Allow button next to the message indicating the blocked system extension.
If you are in lab and got your kit, plug the USB breakout board into a USB port on your laptop. Check whether the serial port exists by looking for the device file:
$ ls /dev/tty.SLAB_USBtoUART /dev/tty.SLAB_USBtoUART
Ensure you have
pip, a Python package manager, installed. If you do not,
sudo easy_install pip.
Install the following Python libraries using Homebrew:
$ sudo pip install pyserial $ sudo pip install xmodem
sudo pip install xmodem complains
OSError: [Errno 1]
Operation not permitted: