roll: pigweed pw_i2c_mcuxpresso: Add DMA I2C initiator Create an initiator that wraps the provided NXP DMA I2C functionality. Most of the code is the same or similar to the base I2C MCUXpresso initiator (which was used as a base). The main differences are the DMA function calls and state handling, as well as the DMA channel setup. Note: I did not add a test because I noticed that it was not being run in the presubmit or on google3. I manually tested that the code compiles and runs on my device with an RT595. Test: on-device RT595 Original-Bug: 479926098 Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/374232 Original-Revision: 3e92d01b262910830f841815a0a9c2711c0b2110 Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed Rolled-Commits: 57beddf57e3800..3e92d01b262910 Roll-Count: 1 Roller-URL: https://cr-buildbucket.appspot.com/build/8689989628423433745 GitWatcher: ignore CQ-Do-Not-Cancel-Tryjobs: true Change-Id: Id0a208b0bc1c2335be59907d4cd621e485c48f06 Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/375373
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.
git clone https://pigweed.googlesource.com/pigweed/quickstart/bazel pw_bazel_quickstart cd pw_bazel_quickstart
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.
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
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
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)
bazelisk test //... will run the unit tests defined in this project, such as the ones in modules/blinky/blinky_test.cc.
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.
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.