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pigweed / pigweed / quickstart / bazel / bcb45100867fdcc9d0fa94dfc97a6c18a2aafdaa
commitbcb45100867fdcc9d0fa94dfc97a6c18a2aafdaa[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Fri Feb 07 21:08:43 2025 -0800
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Feb 07 21:08:43 2025 -0800
tree98e74d727b71af222dca8efdbeba3ff2b7032f34
parent18d27328498fe1190a2a1bd63307dab2d99f7af0 [diff]
roll: pigweed 6bfc7bd..0c4197b (3 commits)

0c4197b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/266038 pw_toolchain: Remove unused glob pattern
df6b243:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/266037 pw_toolchain: Fix action:objdump to objdump_disassemble
a22e4fb:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/266036 pw_toolchain: Add the common link flags last

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Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/266353
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1 file changed
tree: 98e74d727b71af222dca8efdbeba3ff2b7032f34
  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.