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pigweed / pigweed / experimental / f0400fbab3b7b3e0d599aa969fa989a3f2db3d4a
commitf0400fbab3b7b3e0d599aa969fa989a3f2db3d4a[log] [tgz]
authorWyatt Hepler <hepler@pigweed.infra.roller.google.com>Fri Jan 27 21:12:15 2023 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Jan 27 21:12:15 2023 +0000
tree4222092b9a3d6359bd5634d8a15697ed5e36d219
parente2b5e3de67d053b38ebe8a8dbe20aeeade461865 [diff]
[roll third_party/pigweed] pw_transfer: Set RPC streams directly

Rather than passing the RPC stream to the transfer thread to be moved,
set it directly. pw_rpc call objects are synchronized by pw_rpc, so it
is safe to move them between threads.

With upcoming pw_rpc changes, a thread will wait until an RPC call's
callbacks finish before moving the call object. This could cause
deadlocks in pw_transfer if a packet arrives immediately after the
stream starts, before the transfer thread gets a chance to move the call
object to its final location. The RPC thread would wait for the next
event to be available in the callback, while the transfer thread would
wait to move the new call object out of the next event until the
callback completed, resulting in deadlock. This change avoids this
issue without needing to drop any packets.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/126924

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: aaf7aa543ce96de..5b53103e1076a70
Roller-URL: https://ci.chromium.org/b/8790782807073989505
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I4bdaff227f3c54b3011c068bae2d21bda03a1016
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/127008
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: 4222092b9a3d6359bd5634d8a15697ed5e36d219
  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_mimxrt595_evk/
  8. pw_board_led_pico/
  9. pw_board_led_stm32cube/
  10. pw_board_led_stm32f429i_disc1/
  11. pw_board_led_stm32f769i_disc0/
  12. pw_digital_io_arduino/
  13. pw_digital_io_null/
  14. pw_digital_io_pico/
  15. pw_digital_io_stm32cube/
  16. pw_display_driver/
  17. pw_display_driver_ili9341/
  18. pw_display_driver_imgui/
  19. pw_display_driver_mipi/
  20. pw_display_driver_null/
  21. pw_display_driver_st7735/
  22. pw_display_driver_st7789/
  23. pw_graphics/
  24. pw_mipi_dsi/
  25. pw_mipi_dsi_mcuxpresso/
  26. pw_spi_arduino/
  27. pw_spi_pico/
  28. pw_spi_stm32cube/
  29. pw_spin_delay/
  30. pw_spin_delay_arduino/
  31. pw_spin_delay_host/
  32. pw_spin_delay_mcuxpresso/
  33. pw_spin_delay_pico/
  34. pw_spin_delay_stm32cube/
  35. pw_spin_delay_stm32f429i_disc1/
  36. pw_spin_delay_stm32f769i_disc0/
  37. pw_sys_io_baremetal_stm32f769/
  38. targets/
  39. third_party/
  40. tools/
  41. .clang-format ⇨ third_party/pigweed/.clang-format
  42. activate.sh ⇨ bootstrap.sh
  43. .gitattributes
  44. .gitignore
  45. .gitmodules
  46. .gn
  47. activate.bat
  48. banner.txt
  49. bootstrap.bat
  50. bootstrap.sh
  51. BUILD.gn
  52. BUILDCONFIG.gn
  53. env_setup.json
  54. navbar.md
  55. OWNERS
  56. PW_PLUGINS
  57. 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"

STM32F769-DISC0

First time setup:

pw package install stm32cube_f7

Compile:

gn gen out --export-compile-commands --args="
  dir_pw_third_party_stm32cube_f7=\"//environment/packages/stm32cube_f7\"
"
ninja -C out

Flash:

openocd -f targets/stm32f769i_disc0/py/stm32f769i_disc0_utils/openocd_stm32f7xx.cfg \
  -c "program out/stm32f769i_disc0_debug/obj/applications/blinky/bin/blinky.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'

MIMXRT595-EVK Connected to an external MIPI display

Setup NXP SDK:

  1. Build a NXP SDK
  2. Download SDK
  3. Extract SDK's zip file to //environment/SDK_2_12_1_EVK-MIMXRT595

Compile:

gn gen out --export-compile-commands --args="
  pw_MIMXRT595_EVK_SDK=\"//environment/SDK_2_12_1_EVK-MIMXRT595\"
  pw_target_mimxrt595_evk_MANIFEST=\"//environment/SDK_2_12_1_EVK-MIMXRT595/EVK-MIMXRT595_manifest_v3_10.xml\"
  pw_third_party_mcuxpresso_SDK=\"//targets/mimxrt595_evk:mimxrt595_sdk\"
"

ninja -C out

Flash the MIMXRT595-EVK:

Follow the instructions to flash the MIMXRT595-EVK with the SEGGER J-Link firmware and using arm-none-eabi-gdb at https://pigweed.dev/targets/mimxrt595_evk/target_docs.html#running-and-debugging.

Teensy 4.1

https://www.pjrc.com/teensy/loader_cli.html

brew install teensy_loader_cli

OBJCOPY=/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-objcopy
INFILE=out/arduino_debug/obj/applications/terminal_display/bin/terminal_demo.elf
OUTFILE=foo.hex
$OBJCOPY -O ihex -R .eeprom -R .fuse -R .lock -R .signature $INFILE $OUTFILE
teensy_loader_cli --mcu=TEENSY41 -w -v $OUTFILE