Google Git
Sign in
pigweed / pigweed / quickstart / bazel / 6a3060fa704a3ba6b3670526b8c2898d23e842db
commit6a3060fa704a3ba6b3670526b8c2898d23e842db[log] [tgz]
authorDave Roth <davidroth@pigweed.infra.roller.google.com>Wed Dec 18 15:18:38 2024 -0800
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Dec 18 15:18:38 2024 -0800
treeb8046744ce8615b5f6c24604f2f765ef4eb5c08e
parent6cadc301f300761de220d2dceb6e9687a588d4b2 [diff]
roll: pigweed pw_build: Remove and refactor //pw_build/platforms

Hardware definitions belong //targets and should not be referenced
by upstream projects.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/255063
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: 090c43754889c437290f8d27b6706fdb2a4978af

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 8ebf76dd7c5d0b..090c43754889c4
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8728171806210483233
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I4f55b46d4463c61a99e431d25c0aab8cd43449f3
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/255653
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: b8046744ce8615b5f6c24604f2f765ef4eb5c08e
  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. .clangd.shared
  14. .gitignore
  15. .pw_console.yaml
  16. AUTHORS
  17. BUILD.bazel
  18. CONTRIBUTING.md
  19. LICENSE
  20. MODULE.bazel
  21. MODULE.bazel.lock
  22. OWNERS
  23. pigweed.json
  24. 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.