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pigweed / pigweed / experimental / 5a2321615c51db99db91c9b45c701928ccd43400
commit5a2321615c51db99db91c9b45c701928ccd43400[log] [tgz]
authorAnqi Dong <anqid@pigweed.infra.roller.google.com>Wed Oct 12 05:10:15 2022 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Oct 12 05:10:15 2022 +0000
treecb32b615c1632d12a0d5a474933064759ef0b3b4
parent79a4927fa0b4c31f0850e5cb5ea4f871c7eb1f1e [diff]
[roll third_party/pigweed] pw_protobuf: Enhance StreamDecoder nested decoder

Expose a function that allows a nested decoder to be closed with a no-op
if nothing is written to the nested decoder. This functionality had been
added for codegen stuff, but is broadly useful. For example:

* If it is an expensive operation to determine if data needs to be sent
  to the nested decoder. (The computation may need to be performed
  multiple times, without this change.)
* If the presence of data needs to be tested based on data being
  streamed in elsewhere. (Messy buffering may be required, without this
  change).

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/114030

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 712b9f77bdd735e..a03ef7c4f8a06fb
Roller-URL: https://ci.chromium.org/b/8800537331451700289
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Id68a9dd6eeff12a38be2eff75c8cf5b0c3f3002b
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/114351
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
1 file changed
tree: cb32b615c1632d12a0d5a474933064759ef0b3b4
  1. applications/
  2. build_overrides/
  3. infra/
  4. pw_board_led/
  5. pw_board_led_arduino/
  6. pw_board_led_host/
  7. pw_board_led_pico/
  8. pw_board_led_stm32cube/
  9. pw_board_led_stm32f429i_disc1/
  10. pw_digital_io_pico/
  11. pw_digital_io_stm32cube/
  12. pw_display_driver/
  13. pw_display_driver_ili9341/
  14. pw_graphics/
  15. pw_spi_pico/
  16. pw_spi_stm32f429i_disc1_stm32cube/
  17. pw_spin_delay/
  18. pw_spin_delay_arduino/
  19. pw_spin_delay_host/
  20. pw_spin_delay_pico/
  21. pw_spin_delay_stm32cube/
  22. pw_spin_delay_stm32f429i_disc1/
  23. targets/
  24. third_party/
  25. tools/
  26. .clang-format ⇨ third_party/pigweed/.clang-format
  27. activate.sh ⇨ bootstrap.sh
  28. .gitattributes
  29. .gitignore
  30. .gitmodules
  31. .gn
  32. activate.bat
  33. banner.txt
  34. bootstrap.bat
  35. bootstrap.sh
  36. BUILD.gn
  37. BUILDCONFIG.gn
  38. env_setup.json
  39. navbar.md
  40. OWNERS
  41. PW_PLUGINS
  42. README.md
README.md

Pigweed Experimental

This repository contains experimental pigweed modules.

Repository setup

Clone this repo with --recursive to get all required submodules.

git clone --recursive https://pigweed.googlesource.com/pigweed/experimental

This will pull the Pigweed source repository into third_party/pigweed. If you already cloned but forgot to --recursive run git submodule update --init to pull all submodules.

pw_graphics

The //pw_graphics folder contains some libraries for drawing to an RGB565 framebuffer and displaying it on various platforms.

The demo applications that make use of these libraries are:

Build instructions

First time setup:

git clone --recursive https://pigweed.googlesource.com/pigweed/experimental
cd experimental
. ./bootstrap.sh
pw package install imgui
pw package install glfw
pw package install stm32cube_f4
pw package install pico_sdk

STM32F429-DISC1

Compile:

gn gen out --export-compile-commands --args="
  dir_pw_third_party_stm32cube_f4=\"$PW_PROJECT_ROOT/environment/packages/stm32cube_f4\"
"
ninja -C out

Flash:

openocd -f third_party/pigweed/targets/stm32f429i_disc1/py/stm32f429i_disc1_utils/openocd_stm32f4xx.cfg -c "program out/stm32f429i_disc1_stm32cube_debug/obj/applications/terminal_display/bin/terminal_demo.elf verify reset exit"

Linux, Windows or Mac

Compile:

gn gen out --export-compile-commands --args="
  dir_pw_third_party_imgui=\"$PW_PROJECT_ROOT/environment/packages/imgui\"
  dir_pw_third_party_glfw=\"$PW_PROJECT_ROOT/environment/packages/glfw\"
"
ninja -C out

Run:

out/host_debug/obj/applications/terminal_display/bin/terminal_demo

Raspberry Pi Pico Connected to an external SPI display

Working displays:

Compile:

gn gen out --export-compile-commands --args="
  PICO_SRC_DIR=\"$PW_PROJECT_ROOT/environment/packages/pico_sdk\"
"
ninja -C out

Flash:

  • Using a uf2 file:

    ./out/host_debug/obj/targets/rp2040/bin/elf2uf2 ./out/rp2040/obj/applications/terminal_display/bin/terminal_demo.elf ./out/rp2040/obj/applications/terminal_display/bin/terminal_demo.uf2

    Copy ./out/rp2040/obj/applications/terminal_display/bin/terminal_demo.uf2 to your Pi Pico.

  • Using a Pico Probe and openocd:

    This requires installing the Raspberry Pi foundation's OpenOCD fork for the Pico probe. More details including how to connect the two Pico boards is available at Raspberry Pi Pico and RP2040 - C/C++ Part 2: Debugging with VS Code

    Install RaspberryPi's OpenOCD Fork:

    git clone https://github.com/raspberrypi/openocd.git \
  --branch picoprobe \
  --depth=1 \
  --no-single-branch \
  openocd-picoprobe

cd openocd-picoprobe

./bootstrap
./configure --enable-picoprobe --prefix=$HOME/apps/openocd --disable-werror
make -j2
make install

    Setup udev rules (Linux only):

    cat <<EOF > 49-picoprobe.rules
SUBSYSTEMS=="usb", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0004", MODE:="0666"
KERNEL=="ttyACM*", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0004", MODE:="0666"
EOF
sudo cp 49-picoprobe.rules /usr/lib/udev/rules.d/49-picoprobe.rules
sudo udevadm control --reload-rules

    Flash the Pico:

    ~/apps/openocd/bin/openocd -f ~/apps/openocd/share/openocd/scripts/interface/picoprobe.cfg -f ~/apps/openocd/share/openocd/scripts/target/rp2040.cfg -c 'program out/rp2040/obj/applications/terminal_display/bin/terminal_demo.elf verify reset exit'