MSPM0 project with VS Code, CMake and GCC - part 5: Open .syscfg file in SysConfig GUI

10 Sep 2026

In this blog series, I build a Texas Instruments MSPM0 example with VS Code as IDE, and CMake as build infrastructure.
In posts 1 - 4, I created an end to end flow, from install over build to debug, tested on LaunchPad and EasyL1105 kit.
In post 5: call TI's SysConfig GUI to modify a configuration

To let VS Code open a config file in SysConfig, there are two items to solve:

TI hasn't released a VS Code extension for SysConfig, but they have a standalone install.
VS Code can't call external editors by default, but the Open in External App extension can.

I installed both, and configured Open in External App: Open the extension, click the cog-wheel and select Settings.

I entered this:

"openInExternalApp.openMapper": [
        {
            "extensionName": "syscfg",
            "apps": [
                {
                    "title": "SysCfg Tool",
                    "shellCommand": "C:\\ti\\sysconfig_1.28.1\\nw\\nw.exe C:\\ti\\sysconfig_1.28.1\\app ${file}"
                }
            ]
        }
    ]

Then, when I right-click on a .syscfg file, I select the menu option Open in External App: