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Build and Develop the project using VS Code

The .VS Code folder contains configuration files for developing InfiniTime with VS Code. Effort was made to have these rely on Environment variables instead of hardcoded paths.

Environment Setup

To support as many setups as possible the VS Code configuration files expect there to be certain environment variables to be set.

Variable Description Example
ARM_NONE_EABI_TOOLCHAIN_PATH path to the toolchain directory export ARM_NONE_EABI_TOOLCHAIN_PATH=/opt/gcc-arm-none-eabi-9-2020-q2-update
NRF5_SDK_PATH path to the NRF52 SDK export NRF5_SDK_PATH=/opt/nRF5_SDK_15.3.0_59ac345

VS Code Extensions

We leverage a few VS Code extensions for ease of development.

Required Extensions

  • C/C++ - C/C++ IntelliSense, debugging, and code browsing.
  • CMake Tools - Extended CMake support in Visual Studio Code

Optional Extensions

Cortex-Debug - ARM Cortex-M GDB Debugger support for VS Code

Cortex-Debug is only required for interactive debugging using VS Codes built in GDB support.

VS Code/Docker DevContainer

The .devcontainer folder contains the configuration and scripts for using a Docker dev container for building InfiniTime

Using the Remote-Containers extension is recommended. It will handle configuring the Docker virtual machine and setting everything up.

More documentation is available in the readme in .devcontainer

DevContainer on Ubuntu

To use the DevContainer configuration on Ubuntu based systems two changes need to be made:

  1. Modify the file .devcontainer/devcontainer.json and add the argument "--net=host" to the "runArgs" parameter making the line look like this: "runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined", "--net=host"],
  2. Modify the file .vscode/launch.json and change the argument of "gdbTarget" to "127.0.0.1:3333", making the line look like: "gdbTarget": "127.0.0.1:3333",
  3. To start debugging launch openocd on your host system with the appropriate configuration, for example with a stlink-v2 the command is: openocd -f interface/stlink.cfg -f target/nrf52.cfg. This launches openocd with the default ports 3333, 4444 and 6666.
  4. In VsCode go to the Debug pane on the left of the screen and select the configuration Debug - Openocd docker Remote and hit the play button on the left.