Question
SWO doesn't work in VScode
Good afternoon,
I'm trying to use the SWO with a NUCLEO-G431KB board in VScode.
I've generated a project with CubeMX, imported it with the VScode extension and modified the launch.json file by adding
"swoConfig": {
"enabled": true,
"cpuFrequency": 170000000,
"swoFrequency": 2000000,
"source": "probe",
"decoders": [
{
"type": "console",
"label": "ITM",
"showOnStartup": true,
"port": 0,
"encoding": "ascii"
}
]
},However, when I launch the debugger, I get the warning "SWO support is not available from the probe when using the ST-Link GDB server. Disabling SWO.". Looking online it seems that it should work with the ST-Link GDB server, so am I misisng something obvious?
Is there a way to have SWO working in VScode?
Thanks you!
I add the full launch.json file for completeness:
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "Build & Debug Microcontroller - ST-Link",
"cwd": "${workspaceFolder}",
"type": "cortex-debug",
"executable": "${command:cmake.launchTargetPath}",
// Let CMake extension decide executable: "${command:cmake.launchTargetPath}"
// Or fixed file path: "${workspaceFolder}/path/to/filename.elf"
"request": "launch",
"servertype": "stlink",
"device": "STM32G431KBTx", //MCU used
"interface": "swd",
"serialNumber": "", //Set ST-Link ID if you use multiple at the same time
"runToEntryPoint": "main",
"svdFile": "${config:STM32VSCodeExtension.cubeCLT.path}/STMicroelectronics_CMSIS_SVD/STM32G431.svd",
"v1": false, //Change it depending on ST Link version
"serverpath": "${config:STM32VSCodeExtension.cubeCLT.path}/STLink-gdb-server/bin/ST-LINK_gdbserver",
"stm32cubeprogrammer":"${config:STM32VSCodeExtension.cubeCLT.path}/STM32CubeProgrammer/bin",
"stlinkPath": "${config:STM32VSCodeExtension.cubeCLT.path}/STLink-gdb-server/bin/ST-LINK_gdbserver",
"armToolchainPath": "${config:STM32VSCodeExtension.cubeCLT.path}/GNU-tools-for-STM32/bin",
"gdbPath":"${config:STM32VSCodeExtension.cubeCLT.path}/GNU-tools-for-STM32/bin/arm-none-eabi-gdb",
"serverArgs": [
"-m","0",
],
"swoConfig": {
"enabled": true,
"cpuFrequency": 170000000,
"swoFrequency": 2000000,
"source": "probe",
"decoders": [
{
"type": "console",
"label": "ITM",
"showOnStartup": true,
"port": 0,
"encoding": "ascii"
}
]
},
//"preLaunchTask": "Build + Flash"
/* If you use external loader, add additional arguments */
//"serverArgs": ["--extload", "path/to/ext/loader.stldr"],
},
{
"name": "Attach to Microcontroller - ST-Link",
"cwd": "${workspaceFolder}",
"type": "cortex-debug",
"executable": "${command:cmake.launchTargetPath}",
// Let CMake extension decide executable: "${command:cmake.launchTargetPath}"
// Or fixed file path: "${workspaceFolder}/path/to/filename.elf"
"request": "attach",
"servertype": "stlink",
"device": "STM32G431KBTx", //MCU used
"interface": "swd",
"serialNumber": "", //Set ST-Link ID if you use multiple at the same time
"runToEntryPoint": "main",
"svdFile": "${config:STM32VSCodeExtension.cubeCLT.path}/STMicroelectronics_CMSIS_SVD/STM32G431.svd",
"v1": false, //Change it depending on ST Link version
"serverpath": "${config:STM32VSCodeExtension.cubeCLT.path}/STLink-gdb-server/bin/ST-LINK_gdbserver",
"stm32cubeprogrammer":"${config:STM32VSCodeExtension.cubeCLT.path}/STM32CubeProgrammer/bin",
"stlinkPath": "${config:STM32VSCodeExtension.cubeCLT.path}/STLink-gdb-server/bin/ST-LINK_gdbserver",
"armToolchainPath": "${config:STM32VSCodeExtension.cubeCLT.path}/GNU-tools-for-STM32/bin",
"gdbPath":"${config:STM32VSCodeExtension.cubeCLT.path}/GNU-tools-for-STM32/bin/arm-none-eabi-gdb",
"serverArgs": [
"-m","0",
],
/* If you use external loader, add additional arguments */
//"serverArgs": ["--extload", "path/to/ext/loader.stldr"],
}
]
}