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commite5b9f97fc972195821dd05ce5e67384d2b3e9037[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Wed Mar 12 16:28:13 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Mar 12 16:28:13 2025 -0700
treee651a40a6191633b9b40dccd2ada13a5c823e291
parentb2abe614233cdd85bad67a389d7ce2d125bab528 [diff]
roll: pigweed 5ec4ad9..fd015fe (6 commits)

fd015fe:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/275052 pw_trace_tokenized: Add trace_time label flag
3016e5f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/274963 pw_trace_tokenized: Update OWNERS
992ca19:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/275012 pw_build: Add PW_MUST_NOT_PLACE
4bb2686:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/273092 pw_presubmit: Add formatting check rule
18cbbfe:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/275033 bazel: Roll Pico SDK to 2.1.1
8bd066c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/274693 pw_allocator: Add PW_ALLOCATOR_HAS_ATOMICS

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 5ec4ad9051a66b..fd015fe1829066
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8720561165777930193
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I5b51598f61000eb5fb61f6177e81adced0534ff8
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/275180
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
2 files changed
tree: e651a40a6191633b9b40dccd2ada13a5c823e291
  1. .github/
  2. .vscode/
  3. apps/
  4. modules/
  5. system/
  6. targets/
  7. tools/
  8. .bazelignore
  9. .bazelrc
  10. .bazelversion
  11. .buildifier.json
  12. .clang-format
  13. .clang-tidy
  14. .clangd.shared
  15. .gitignore
  16. .pw_console.yaml
  17. AUTHORS
  18. BUILD.bazel
  19. CONTRIBUTING.md
  20. LICENSE
  21. MODULE.bazel
  22. MODULE.bazel.lock
  23. OWNERS
  24. pigweed.json
  25. README.md
README.md

Pigweed: minimal Bazel example

This repository contains a minimal example of a Bazel-based Pigweed project. It is a LED-blinking service (featuring RPC control!) for the Raspberry Pi Pico. It can also be run on any computer using the included simulator.

Getting the code

git clone https://pigweed.googlesource.com/pigweed/quickstart/bazel pw_bazel_quickstart
cd pw_bazel_quickstart

Dependencies

The only dependency that must be installed is Bazelisk.

Bazelisk is a launcher for the Bazel build system that allows for easy management of multiple Bazel versions.

Instructions for installing Bazelisk can be found here.

Running on the simulator

To run the simulator, type: bazelisk run //apps/blinky:simulator_blinky Then, in a new console, connect to the simulator using: bazelisk run //apps/blinky:simulator_console

Running on hardware

To start, connect a Raspberry Pi Pico, Pico 2, or debug probe via USB.

To run on the Raspberry Pi Pico, type: bazelisk run //apps/blinky:flash_rp2040 Then, in a new console, connect to the device using: bazelisk run //apps/blinky:rp2040_console

Controlling the LED

Once connected with a console, RPCs can be sent to control the LED. Try running:

device.set_led(True)
device.set_led(False)
device.toggle_led()
device.blink(blink_count=3)

Running unit tests on the host device

bazelisk test //... will run the unit tests defined in this project, such as the ones in modules/blinky/blinky_test.cc.

Running unit tests on hardware

bazelisk run @pigweed//targets/rp2040/py:unit_test_server in one console followed by bazelisk test //... --config=rp2040 will also allow running the unit tests on-device.

Next steps

Try poking around the codebase for inspiration about how Pigweed projects can be organized. Most of the relevant code in this quickstart (including RPC definitions) is inside modules/blinky, with some client-side Python code in tools/console.py.