![]() “ armToolchainPath“: path to the arm-none-eabi-gdb executable.“ serverpath“: Path and file name of J-Link GDB Server executable.“ executable“: the binary to load and debug.vscode folder, create a new file named launch.json, with the following content: /device/MK22F51212.svd", The J-Link can be used with GDB, LLDB, OpenOCD or CMSI-DAP. NXP FRDM-K22F BoardĪdditionally many silicon vendor boards ( LPC4322 or FRDM OpenSDA) and debug probes can load the J-Link firmware, including the NXP LPC-Link2 or STLink. The J-Link is widely available and the EDU only costs $20 or €20, is very small and universally works for many, many devices out of the box. Technically it should be possible to use other probes too. In this article I’m using a SEGGER J-Link EDU Mini debug probe. I’m using SWD here because the FRDM-K22F only has SWD available on the debug header, but JTAG could be used too. Debugging is through a debug probe (J-Link), either external (standalone debug probe) or on-board (available with many development boards e.g. For this I need the tools and extensions installed in Part 1 of this tutorial series. In this article I show how to debug an ARM Cortex (M4F, NXP K22FN512) microcontroller with the Microsoft Visual Studio Code. This one is about debugging an ARM Cortex-M Microcontroller with Visual Studio Code: Cortex-M4 (NXP K22FN512) Debugging with Visual Studio Code Outline To do so add those command as part of the setup commands array as follows.The previous parts were about installation, project setup and building. You can execute additional commands to get your board into a proper state for debugging, often you need to halt and then reset the board at the beginning of a session. "text": "-file-exec-and-symbols Nucleo_blink_led.elf", In the “setupCommands”, you can remove the documentation link section (leaving it is not harmful). "miDebuggerPath": "C:\\Program Files (x86)\\Microsoft Visual Studio\\Internal\\Enterprise\\Linux\\gcc_arm\\bin\\arm-none-eabi-gdb.exe", ![]() $\\BUILD\\Nucleo_blink_led.elf",Ĭhange the miDebuggerPath to point to the full path to arm-none-eabi-gdb.exe.In this preview some of the environment variables emitted are not working yet, you will need to substitute these with the values needed. We are providing as many defaults and hints as we can to help you. There are many ways to debug these kinds of devices so what you fill in here will be specific to your board, the hardware debugger and its associated software that provides a gdbserver interface. This will create a launch.vs.json that has many options expressed that are relevant for embedded debugging. In the dialog that pops up select C/C Debug microcontroller (gdbserver). Now after you have built your binary and flashed the device, right click on the binary output and select Debug and Launch Settings. To add them, edit the makefile under the tools and flags section and add the -g flag for the GCC and G commands like the below. In the case of the GCC projects exported from the ARM online compiler, they do not. This overview of debugging capabilities follows from the setup for getting started ARM cross compilation and will be integrated there as an addendum.įirst, it is important to ensure your output has debugging symbols. With 15.6 Preview 2, we are adding support for debugging. We introduced support for ARM GCC cross compilation in Visual Studio 2017 in the 15.5 release.
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