Choosing a specific device in JTAG chain

[Visques]

Hi,

I can't seem to find the launch configuration setting to specify a device in the JTAG chain by its position and IRpre length. I'm using a J-link programmer and I can usually do this from the command line by passing the -jtagconf x,y argument to the J-link executable. However, the debug console in VScode shows that the debug launch config called the Segger J-link GDB server without this argument. I can't seem to find how to make the debug config to append this to the J-link server call

Is this supported by the STM32Cube extension?

Thanks

[Florent V · Accepted solution]

Hi Visques,

The attribute serverJtagCfg will be available in the next delivery (planned for the end of November).

In the meantime, you can use the generic debug configuration to pass the -jtagconf argument in the serverParameters attribute.

Ex: 

        {
            "type": "stgdbtarget",
            "request": "launch",
            "name": "STM32Cube: STM32 Launch Generic GDB Server",
            "origin": "snippet",
            "cwd": "${workspaceFolder}",
            "preBuild": "${command:st-stm32-ide-debug-launch.build}",
            "program": "${command:st-stm32-ide-debug-launch.get-projects-binary-from-context1}",
            "gdb": "${command:st-stm32-ide-debug-launch.get-gdb-executable}",
            "serverExe": "JLinkGDBServerCL",
            "serverParameters": ["-s", "-if", "jtag", "-device", "STM32H723ZG", "-speed", "4000", "-endian", "little", "-novd", "-jtagconf", "9,2"],
            "serverHost": "localhost",
            "serverPort": "2331",
            "serverCwd": "<Path to your JLink installation>",
            "runEntry": "main",
            "imagesAndSymbols": [
                {
                    "imageFileName": "${command:st-stm32-ide-debug-launch.get-projects-binary-from-context1}",
                    "imageOffset": "",
                    "symbolFileName": "${command:st-stm32-ide-debug-launch.get-projects-binary-from-context1}",
                    "symbolOffset": ""
                }
            ],
            "verbose": true
        },

 
(Note: Update the serverCwd attribute with your path)

Best Regards,
Flo

[Visques]

Thanks for your quick reply. I'll wait until the next update then