Google Git
Sign in
pigweed / pigweed / kudzu / bff9bbfae4de7cd20376874d09087026b63918c3
commitbff9bbfae4de7cd20376874d09087026b63918c3[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Sat Sep 27 01:11:24 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Sat Sep 27 01:11:24 2025 -0700
treef4cfeac37a08f4ae363922cb2da0d76310406617
parentb184055745955369a2ef43b627c8e4c5a73a4353 [diff]
roll: third_party/pigweed b1130af..f24c9a1 (4 commits)

f24c9a1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/324892 pw_build_info: Add "-dirty" suffix to kGitCommit
8ddcffa:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/325952 pw_build_info: Change kGitCommit to InlineBasicString
cfe6a32:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/323992 pw_digital_io_mcuxpresso: One handler per pin
aedabd6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/326092 pw_package: Use flatbuffers mirror

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: b1130af1144b8c..f24c9a11369e47
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8702590250729782625
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I01c12dbbda3000cb90b2a96c02756909f1c3ba47
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/326199
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
1 file changed
tree: f4cfeac37a08f4ae363922cb2da0d76310406617
  1. applications/
  2. build_overrides/
  3. lib/
  4. pcb/
  5. targets/
  6. third_party/
  7. tools/
  8. .clang-format ⇨ third_party/pigweed/.clang-format
  9. activate.fish ⇨ bootstrap.fish
  10. activate.sh ⇨ bootstrap.sh
  11. .bazelignore
  12. .bazelrc
  13. .bazelversion
  14. .gitignore
  15. .gitmodules
  16. .gn
  17. activate.bat
  18. banner.txt
  19. bootstrap.bat
  20. bootstrap.fish
  21. bootstrap.sh
  22. BUILD.gn
  23. BUILDCONFIG.gn
  24. OWNERS
  25. pigweed.json
  26. README.md
  27. WORKSPACE
README.md

Kudzu

Getting Started

Make sure you've set up Pigweed's prerequisites.

If you're on Windows, you can automate the initial setup by downloading the first-time setup script from cmd.exe:

curl https://pigweed.googlesource.com/pigweed/sample_project/+/main/tools/setup_windows_prerequisites.bat?format=TEXT > setup_pigweed_prerequisites.b64 && certutil -decode -f setup_pigweed_prerequisites.b64 setup_pigweed_prerequisites.bat && del setup_pigweed_prerequisites.b64

Then you can run the script with the following command in cmd.exe:

setup_pigweed_prerequisites.bat

Note: You may see a few UAC prompts as the script installs Git, Python, and enables developer mode.

Once that is done, you can clone this project with the following command:

git clone https://pigweed.googlesource.com/pigweed/kudzu

Environment setup

Pigweed uses a local development environment for most of its tools. This means tools are not installed to your machine, and are instead stored in a directory inside your project (Note: git ignores this directory). The tools are temporarily added to the PATH of the current shell session.

To make sure the latest tooling has been fetched and set up, run the bootstrap command for your operating system:

Windows

bootstrap.bat

Linux & Mac

source ./bootstrap.sh

After tooling updates, you might need to run bootstrap again to ensure the latest tools.

After the initial bootstrap, you can use use the activate scripts to configure the current shell for development without doing a full update.

Windows

activate.bat

Linux & Mac

source ./activate.sh

Device tools setup

Install the pico SDK and tool to flash the device.

pw package install pico_sdk
pw package install picotool

These packages will be built and added to the path automatically. There is no need to add these to the gn arguments.

Linux Setup

GLFW Dependency:

Install the GLFW OpenGL library

sudo apt install libglfw3-dev libglfw3

Udev Rules:

Put the following into /usr/lib/udev/rules.d/49-picoprobe.rules

# Pico app mode
SUBSYSTEMS=="usb", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="000a", MODE:="0666"
KERNEL=="ttyACM*", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="000a", MODE:="0666", SYMLINK+="rp2040"

# RP2 Boot
SUBSYSTEMS=="usb", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0003", MODE:="0666"
KERNEL=="ttyACM*", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0003", MODE:="0666", SYMLINK+="rp2040"

# Picoprobe
SUBSYSTEMS=="usb", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0004", MODE:="0666"
KERNEL=="ttyACM*", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0004", MODE:="0666", SYMLINK+="picoprobe"

This will also symlink /dev/picoprobe and /dev/rp2040 to the respective vendor and product ids.

Apply the above rules with:

sudo udevadm control --reload-rules
sudo udevadm trigger

Compile:

pw build

Run:

Host

Run the host app and connect to it via pw console:

./out/gn/host_device_simulator.speed_optimized/obj/applications/badge/bin/badge & \
  pw console --socket-addr default ; \
  killall badge

Kudzu

export ELF=./out/gn/rp2040.size_optimized/obj/applications/badge/bin/badge.elf

picotool reboot -f -u && \
  sleep 3 && \
  picotool load -x $ELF

Connect with pw console:

pw console --verbose \
  --baudrate 115200 \
  --token-databases ./out/gn/rp2040.size_optimized/obj/applications/badge/bin/badge.elf \
  --device /dev/rp2040

From Python Repl window you can issue RPCs interactively:

>>> device.rpcs.kudzu.rpc.Kudzu.PackageTemp()
(Status.OK, kudzu.rpc.PackageTempResponse(temp=27.60657501220703))