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gerrit-public.fairphone.software / platform / external / pigweed / 7009566653266b798bef8f853c0cd77169d44f7b
commit7009566653266b798bef8f853c0cd77169d44f7b[log] [tgz]
authorArmando Montanez <amontanez@google.com>Thu Jan 09 14:25:04 2020 -0800
committerCQ Bot Account <commit-bot@chromium.org>Thu Jan 16 23:30:48 2020 +0000
treef89a761231599d7c89e791a449ba8f5b87e2c008
parent63092343da394082840628e0a1aea02cbd062d55 [diff]
pw_boot_armv7m: Initial commit

pw_boot_armv7m provides a generic linker script and startup script to
speed up device bringup on ARMv7-M based cores.

Change-Id: Ia4abe78ab1d6bde017608eeb46b2e780bf53dad1
17 files changed
tree: f89a761231599d7c89e791a449ba8f5b87e2c008
  1. docs/
  2. env_setup/
  3. pw_base64/
  4. pw_bloat/
  5. pw_boot_armv7m/
  6. pw_build/
  7. pw_cli/
  8. pw_cpu_exception/
  9. pw_cpu_exception_armv7m/
  10. pw_docgen/
  11. pw_doctor/
  12. pw_dumb_io/
  13. pw_dumb_io_baremetal_stm32f429/
  14. pw_dumb_io_stdio/
  15. pw_module/
  16. pw_preprocessor/
  17. pw_presubmit/
  18. pw_protobuf/
  19. pw_protobuf_compiler/
  20. pw_span/
  21. pw_status/
  22. pw_string/
  23. pw_target_runner/
  24. pw_tokenizer/
  25. pw_toolchain/
  26. pw_unit_test/
  27. pw_varint/
  28. pw_watch/
  29. targets/
  30. .clang-format
  31. .gitignore
  32. .gn
  33. .pylintrc
  34. AUTHORS
  35. BUILD
  36. BUILD.gn
  37. BUILDCONFIG.gn
  38. CMakeLists.txt
  39. CONTRIBUTING.md
  40. LICENSE
  41. modules.gni
  42. pw_vars_default.gni
  43. README.md
  44. WORKSPACE
README.md

Pigweed Embedded Oriented Software Libraries

Pigweed is a collection of embedded-focused libraries, which we call "modules". These modules are designed for small-footprint MMU-less microcontrollers like the ST Micro STM32L452 or the Nordic NRF82832. The modules are designed to facilitate easy integration into existing codebases.

Pigweed is in the early stages of development.

Getting Started

$ git clone sso://pigweed.googlesource.com/pigweed/pigweed ~/pigweed
$ cd ~/pigweed
$ env_setup/cipd/wrapper.py auth-login  # Once per machine.
$ . env_setup/bootstrap.sh

You can use . env_setup/env_setup.sh in place of . env_setup/bootstrap.sh. Both should work every time, but bootstrap.sh tends to remove and reinstall things at the expense of time whereas env_setup.sh tends to do basic checks to see if time can be saved by skipping expensive operations.

If you're using Homebrew and you get an error saying module 'http.client' has no attribute 'HTTPSConnection' then your Homebrew Python was not set up to support SSL. Ensure it's installed with brew install openssl and then run brew uninstall python && brew install python. After that things should work.

The environment setup script will pull down the versions of tools necessary to build Pigweed and add them to your environment. You can then build with GN, CMake, or Bazel. You can also confirm you're getting the right versions of tools—they should be installed under .cipd/.

Build for the host with GN

$ which gn
~/pigweed/.cipd/pigweed.ensure/gn
$ gn gen out/host
$ ninja -C out/host

Build for the host with CMake

$ which cmake
~/pigweed/.cipd/pigweed.ensure/bin/cmake
$ cmake -B out/cmake-host -S . -G Ninja
$ ninja -C out/cmake-host

Build for the host with Bazel

$ which bazel
~/pigweed/.cipd/pigweed.ensure/bazel
$ bazel test //...

Build for the STM32F429 Discovery board

$ gn gen --args='pw_target_config = "//targets/stm32f429i-disc1/target_config.gni"' out/disco
$ ninja -C out/disco
$ pw test --root out/disco/ --runner stm32f429i_disc1_unit_test_runner

The CMake and Bazel builds do not yet support building for hardware.

To flash firmware to an STM32 Discovery development board (and run pw test) from macOS, you need to install OpenOCD. Install Homebrew using the latest instructions at https://brew.sh/, then install OpenOCD with brew install openocd.

If any of this doesn't work please file a bug.