update pico-examples/ide/vscode (#313)
Co-authored-by: martin <admin@crossleys.biz>
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# Sample configuration files for developing with VSCode and the SWD port
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This example provides files that illustrate how to use Microsoft(R) Visual Studio Code (*VSCode*) with a target connected via its Serial Wire Debug (*SWD*) port.
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Many configurations are possible. VSCode might be running on:
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* a Raspberry Pi wired directly to a target's SWD pins
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* a PC or Mac connected to a target via a Pico running [picoprobe](https://www.raspberrypi.com/documentation/microcontrollers/raspberry-pi-pico.html#debugging-using-another-raspberry-pi-pico)
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* a machine with an already running instance of `OpenOCD`
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[Getting Started with the Raspberry Pi Pico](https://rptl.io/pico-get-started) describes a basic setup for VSCode and how to build picoprobe and `OpenOCD`, a tool that connects to the GNU Debugger [GDB](https://www.sourceware.org/gdb/).
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**Configuring VSCode to use the SWD port lets it upload code transparently and gives you step-through debugging from within the IDE.**
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---
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## Assumptions
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The example assumes:
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1. A functioning development environment with [pico-sdk](https://github.com/raspberrypi/pico-sdk), ARM Toolchain, VSCode and `OpenOCD` all built and installed according to the instructions in the [Getting Started Guide](https://rptl.io/pico-get-started).
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2. A target connected via the SWD port (see above).
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3. Reasonable familiarity with [pico-sdk](https://github.com/raspberrypi/pico-sdk), [CMake](https://cmake.org/cmake/help/latest/guide/tutorial/index.html) and [VSCode workspaces](https://code.visualstudio.com/docs/editor/workspaces).
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> Note: The provided files illustrate working configurations but you will almost certainly want to customise them further to meet your needs.
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---
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## Using the Example
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1. Open a fresh VScode workspace, add a simple standalone SDK project (removing any existing `build` directory) and create a `.vscode` folder at its top level.
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2. Choose the `launch-*-swd.json` file closest to your setup (see below), rename it to `launch.json` and copy it to the `.vscode` folder you created.
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Start with:
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* `launch-probe-swd.json` if the target is connected via an SWD probe (e.g. picoprobe)
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* `launch-raspberrypi-swd.json` if the target is directly connected to a Raspberry Pi GPIO
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* `launch-remote-openocd.json` if VSCode should connect to an already running instance of `OpenOCD`.
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> Be sure to review the selected file and make any changes needed for your environment.
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3. Copy the `settings.json` file into the `.vscode` folder. This illustrates how to configure the *CMake* plugin so that you debug using *cortex-debug* instead of trying to launch the executable on the host.
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Lauching a debug session in the workspace (e.g. with *f5*) should now build the project and if successful upload it to the target, open a debug session and pause at the start of `main()`.
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> VSCode has some background work to do the first time through. If appears to have stalled then leave it alone for at least a minute.
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> If `OpenOCD` reports that GDB won't launch or quits unexpectedly, you may need to adjust the *gdbPath* and/or *configFiles* settings in `launch.json`. See the comments in the example files and check the latest [Getting Started](https://rptl.io/pico-get-started).
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{
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"version": "0.2.0",
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"configurations": [
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{
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"name": "Pico Debug",
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"cwd": "${workspaceRoot}",
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"executable": "${command:cmake.launchTargetPath}",
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"request": "launch",
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"type": "cortex-debug",
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"servertype": "openocd",
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// This may need to be "arm-none-eabi-gdb" for some previous builds
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"gdbPath" : "gdb-multiarch",
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"device": "RP2040",
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"configFiles": [
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// This may need to be "interface/picoprobe.cfg" for some previous builds
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"interface/cmsis-dap.cfg",
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"target/rp2040.cfg"
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],
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"svdFile": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd",
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"runToEntryPoint": "main",
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// Work around for stopping at main on restart
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"postRestartCommands": [
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"break main",
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"continue"
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]
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}
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]
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}
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"request": "launch",
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"type": "cortex-debug",
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"servertype": "openocd",
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// This may need to be arm-none-eabi-gdb depending on your system
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// This may need to be "arm-none-eabi-gdb" for some previous builds
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"gdbPath" : "gdb-multiarch",
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"device": "RP2040",
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"configFiles": [
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"target/rp2040.cfg"
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],
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"svdFile": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd",
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"runToMain": true,
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"runToEntryPoint": "main",
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// Work around for stopping at main on restart
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"postRestartCommands": [
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"break main",
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"executable": "${command:cmake.launchTargetPath}",
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"request": "launch",
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"servertype": "external",
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// This may need to be arm-none-eabi-gdb depending on your system
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// This may need to be "arm-none-eabi-gdb" for older builds
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"gdbPath" : "gdb-multiarch",
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// Connect to an already running OpenOCD instance
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"gdbTarget": "your-openocd:3333",
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"svdFile": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd",
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"runToMain": true,
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"runToEntryPoint": "main",
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// Work around for stopping at main on restart
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"postRestartCommands": [
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"break main",
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