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pigweed / pigweed / quickstart / bazel / b42932526a2845a099aff4a9127186ba1904283b
commitb42932526a2845a099aff4a9127186ba1904283b[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Fri Dec 13 11:54:40 2024 -0800
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Dec 13 11:54:40 2024 -0800
tree39715c34e1a2e91bc54315809e07ebf77e9cd8a0
parentafd2f1d702adf059a1f2539ef7a2d8ee864d117e [diff]
roll: pigweed 96f941b..0944913 (4 commits)

0944913:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/254134 bazel: Add explicit rules_java dependency
475ef28:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/253192 gn: Fix error reported by GN linter
ce0aa60:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/254214 pw_grpc: Handle large ignored frames
a2f2425:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/254213 pw_grpc: Fix a few deadlocks in error handling

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Rolled-Commits: 96f941bde9f644..0944913eb37b9b
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Change-Id: Ia7e595047f4f076ef50b92ba0edbe2f5cc351d3d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/254512
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
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1 file changed
tree: 39715c34e1a2e91bc54315809e07ebf77e9cd8a0
  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.