Install Prereqs

brew install cmake minicom

Make sure the normal ARM toolchain is not present on M series macs. brew uninstall arm-none-eabi-gcc && brew autoremove

Toolchain install brew tap ArmMbed/homebrew-formulae

brew install gcc-arm-embedded

Clone Repos

git clone https://github.com/raspberrypi/pico-sdk.git

git clone https://github.com/raspberrypi/pico-examples

git clone https://github.com/raspberrypi/pico-extras.git

In your pico-sdk , run git submodule update --init

add this to your .bashrc or .zshrc file: PICO_SDK_PATH=/Users/ryan/Desktop/Files/repos/pico-sdk

Build

Navigate to ./my-first-c-code/blink, run

cmake .. -DPICO_BOARD=pico_w && make -j8

Run Blink

Restart the Pico W while holding BOOTSEL button.

Copy built .uf2 file to pico. Pico will restart and code will run

cp picow_blink.uf2 /Volumes/RPI-RP2/.

Hello World - TTY debugging

cd my-first-c-code/hello-world/build

cmake .. -DPICO_BOARD=pico_w && make

cp hello_usb.uf2 /Volumes/RPI-RP2/.

TERM=xterm screen /dev/tty.usbmodem101 115200

Control + A, then Control + \ to quit screen.

When things go wrong!

If you don't run your code in an infinite loop, you may find the pi hard to interact with via Thonny or your normal copy a .uf2 file to the drive. If that's the case, copy the flash_nuke.uf2 to the pico and it'll be reset to it's factory state.