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commit880902437cf351e7872fedbffbb193ae8f265b42[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Thu Oct 31 23:37:40 2024 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Oct 31 23:37:40 2024 +0000
tree5517be6332ddb2a82611c25a05d4f9c0629e30ae
parentcee39ae9539ba01438404c99180a68ac8af58e55 [diff]
roll: pigweed e7623c7..a146d41 (3 commits)

a146d41:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/245416 pw_unit_test: Temporarily restore deprecated EXPECT_OK macros
4b7733f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/242715 pw_tokenizer: Create generic macro for tokenizing enums
6fd4792:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/245254 pw_allocator: Make pw::Allocator::as_pmr optional

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1 file changed
tree: 5517be6332ddb2a82611c25a05d4f9c0629e30ae
  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. OWNERS
  22. pigweed.json
  23. 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.