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pigweed / pigweed / quickstart / bazel / d47b2ab5c778cf3585e2948c89ef577e7411d5fd
commitd47b2ab5c778cf3585e2948c89ef577e7411d5fd[log] [tgz]
authorTed Pudlik <tpudlik@pigweed.infra.roller.google.com>Mon Jul 01 20:47:51 2024 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Mon Jul 01 20:47:51 2024 +0000
tree9397bf075e4094f2dad1327db585f17de963eadd
parenta7987e39c4a816f14e27804827fe7b410126d40a [diff]
roll: pigweed, pw_toolchain: bazel: Introduce incompatible_with_mcu

Also provide one example of using it: mark //pw_stream:socket_stream
incompatible_with_mcu (unless the platform declares compatibility
through a module-specific constraint value).

Original-Bug: 348008794
Original-Fixed: 343481391
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/216851
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
pigweed, pw_toolchain Rolled-Commits: 324824be015681a..947d85d964b002e
Roller-URL: https://ci.chromium.org/b/8743582714397112081
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ia86fc7ffbd5704a7df8c7accc8f667c15a711262
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/219433
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: 9397bf075e4094f2dad1327db585f17de963eadd
  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!