Pico2 Zephyr Pigweed RPC Starter

Setup pigweed and zephyr

On devcontainer terminal, run the following commands:

source ./third_party/pigweed/bootstrap.sh
pw package install zephyr
#(on repository init)pw zephyr manifest
west init -l manifest
west update
west blobs fetch hal_infineon # for pico2 w

As the output of the last command is saved in the workspace, you can skip this step next time.

Build

source ./third_party/pigweed/activate.sh
west build -p -b rpi_pico2/rp2350a/m33/w apps/simple
west build -p -b rpi_pico2/rp2350a/m33/w apps/pw_rpc # pristine build
west build -b rpi_pico2/rp2350a/m33/w apps/pw_rpc # not pristine build

build python schema

protoc
-I ./apps/pw_rpc
-I ./modules/lib/nanopb/generator/proto
--python_out=./tools
--pyi_out=./tools
./apps/pw_rpc/service.proto
./modules/lib/nanopb/generator/proto/nanopb.proto

## Flash

Flash zephyr.uf2 to the device as shown [here](https://www.raspberrypi.com/documentation/microcontrollers/c_sdk.html#your-first-binaries).

## Debugging

### Setup .venv for debugging

You can use `uv` tool to setup virtual environment for pigweed debugging.

```bash
uv sync
source ./.venv/bin/activate

Run sample script

You can run echo and led on/off sample scripts as follows:

• Connection via USB

python tools/client.py

• Connection via TCP (Wi-Fi)

python tools/client.py -i 192.168.x.x

PW console

You can use pw console command to open pigweed console.

• Connection via USB

python tools/console.py

• Connection via TCP (Wi-Fi)

python tools/console.py -i 192.168.x.x