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pigweed / pigweed / kudzu / f868c49487c56a323c1f706a1a6112431738c6c4
commitf868c49487c56a323c1f706a1a6112431738c6c4[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Wed Sep 24 13:30:20 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Sep 24 13:30:20 2025 -0700
treecaa82e43a4170cbe1c54c75b0ac3330a860ed2da
parent53e022fe2495137eba277b8de52bd1fd733c1902 [diff]
roll: third_party/pigweed 90c692e..506d7f3 (4 commits)

506d7f3:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/324913 pw_kernel: Add cortex-m CPUID register
f2883cb:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/325372 pw_compilation_testing: Cap max parallelism
77bd96c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/324778 pw_ide: Avoid crash when pigweed project root is not found
0d0bbba:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/324732 pw_bluetooth_sapphire: Don't filter out unconnectable peers

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 90c692ee80eb64..506d7f398d93a4
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8702815508359372065
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I28fb7b9b3c804846aa283278ee7aff53cc47d6f3
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/325492
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
1 file changed
tree: caa82e43a4170cbe1c54c75b0ac3330a860ed2da
  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))