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Running on NuttX
Clone the Raspberry Pi Pico SDK
Set PICO_SDK_PATH environment variable in ~/.bashrc
export PICO_SDK_PATH=<absolute_path_to_pico-sdk_directory>
Load the env variables
source ~/.bashrc
Get Picotool, follow the building instructions, ignore the udev rules, then from the build dir run
sudo make install
Confirm that picotool is installed by running
picotool
Follow the NuttX documentation, install dependencies and clone nuttx-apps
Clone our NuttX fork, it includes some modifications to enable all gpio outputs
git clone -b raspberry-pi-pico-w-deploy [email protected]:CarletonURocketry/nuttx.git nuttx
Clone the hysim nuttx-build branch to the apps directory
git clone -b nuttx-build [email protected]:CarletonURocketry/hysim.git
From the nuttx directory run, this imports our config file directly
./tools/configure.sh -l cuinspace-pico-w:telnet
and finally build nuttx
make
to delete the whole config you can run
make distclean
To flash the pico connect it while holding the BOOTSEL button, the pico should appear as external storage. Then drag and drop the nuttx.uf2 file to the pico, it should disappear right after.
Run
sudo dmesg
you should see something the lines of ttyACM0: USB ACM device, where ttyACM0 is the device we will be connecting to.
Download a serial terminal such as minicom/picocom/tio
To connect to the pico run
tio /dev/ttyACM0
Press Enter 3 times, you should be greeted by nsh>
https://nuttx.apache.org/docs/latest/platforms/arm/rp2040/index.html
https://nuttx.apache.org/docs/latest/platforms/arm/rp2040/boards/raspberrypi-pico-w/index.html