roll: pigweed, pw_toolchain 6 commits

928309502f9c164 pw_bluetooth_sapphire: Return registered services
7f18f4dd14532a9 pw_bluetooth_sapphire: Handle switch enum warning
80c3d59adc51dbd pw_bluetooth_sapphire: Handle switch warning with
6f38831725f063e pw_bluetooth_sapphire: Fix shadow variable warning
038f1d423f7ed15 pw_bluetooth_sapphire: Add panic to EventTypeToStr
c8044357419a608 bazel: Get picotool from the BCR

https://pigweed.googlesource.com/pigweed/pigweed
pigweed, pw_toolchain Rolled-Commits: b83d27482bb6ccf..928309502f9c164
Roller-URL: https://ci.chromium.org/b/8740232737111551217
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Change-Id: Ibcbc275df7dac943d6267ae8f24c7bc7e943c96d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/228333
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: af76eac9ba184bca8d4b82d5fc751509e499651d
  1. .github/
  2. src/
  3. targets/
  4. tools/
  5. .bazelignore
  6. .bazelrc
  7. .bazelversion
  8. .gitignore
  9. BUILD.bazel
  10. echo.bzl
  11. LICENSE
  12. pigweed.json
  13. README.md
  14. requirements.in
  15. requirements_lock.txt
  16. WORKSPACE
README.md

Pigweed: minimal Bazel example

This repository contains a minimal example of a Bazel-based Pigweed project. It's an echo application for the STM32F429 Discovery Board.

Cloning

git clone --recursive https://pigweed.googlesource.com/pigweed/quickstart/bazel

If you already cloned but forgot to include --recursive, run git submodule update --init to pull all submodules.

TODO: b/300695111 - Don't require submodules for this example.

Building

We‘ll assume you already have Bazel on your system. If you don’t, the recommended way to get it is through Bazelisk.

To build the entire project (including building the application for both the host and the STM32 Discovery Board), run

bazel build //...

To run the application locally on your machine, run,

bazel run //src:echo

Flashing

To flash the firmware to a STM32F429 Discovery Board connected to your machine, run,

bazel run //tools:flash

Note that you don't need to build the firmware first: Bazel knows that the firmware images are needed to flash the board, and will build them for you. And if you edit the source of the firmware or any of its dependencies, it will get rebuilt when you flash.

Communicating

Run,

bazel run //tools:miniterm -- /dev/ttyACM0 --filter=debug

to communicate with the board. When you transmit a character, you should get the same character back!