I am on a Mac, I have generated my project for stm32g0b1rct6 using cubemx and I ran setup STM32Cube project(s) tool within vscode with all 3 options (CLANG, CLANG_GCC, GCC) and whenever I try to run debug, I get time out error: bound doStepConnectToTarget Failed: could not connect: Operation timed out.
I am working on a fresh VSCode profile where only the following extensions are installed:
Here is the verbose output from my debug console:
From client: initialize({"clientID":"vscode","clientName":"Visual Studio Code","adapterID":"stlinkgdbtarget","pathFormat":"path","linesStartAt1":true,"columnsStartAt1":true,"supportsVariableType":true,"supportsVariablePaging":true,"supportsRunInTerminalRequest":true,"locale":"en","supportsProgressReporting":true,"supportsInvalidatedEvent":true,"supportsMemoryReferences":true,"supportsArgsCanBeInterpretedByShell":true,"supportsMemoryEvent":true,"supportsStartDebuggingRequest":true,"supportsANSIStyling":true})
To client: {"seq":0,"type":"response","request_seq":1,"command":"initialize","success":true,"body":{"supportsEvaluateForHovers":true,"supportsConfigurationDoneRequest":true,"supportsSetVariable":true,"supportsConditionalBreakpoints":true,"supportsHitConditionalBreakpoints":true,"supportsLogPoints":true,"supportsFunctionBreakpoints":true,"supportsDisassembleRequest":true,"supportsReadMemoryRequest":true,"supportsWriteMemoryRequest":true,"supportsSteppingGranularity":true}}
From client: launch({"type":"stlinkgdbtarget","request":"launch","name":"STM32Cube: STM32 Launch ST-Link GDB Server","origin":"snippet","cwd":"/Users/hasanayan/source/midibits/firmware/app2","preBuild":"${command:st-stm32-ide-debug-launch.build}","runEntry":"main","verbose":true,"imagesAndSymbols":[{"imageFileName":"/Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf"}],"__configurationTarget":6,"__sessionId":"bd3573a8-66d6-4bf4-8e88-febebb423231"})
From Debug Session: start Launch Sequence
From Debug Session: Step pre-build
From Debug Session: Step validate debug configuration
From Debug Session: Step ST-Link device check
From Debug Session: Step start STLink GDB Server
GDB Server command line executed: cube stlink-gdbserver -cp /Users/hasanayan/Library/Application Support/stm32cube/bundles/programmer/2.21.0/bin -k -d -m 0 -p 61234 -l 1
From Debug Session: Step check genuine ST device
From Debug Session: Step start RTOS Proxie(s)
From Debug Session: Step start gdb client debug
To client: {"seq":0,"type":"event","event":"output","body":{"category":"server","output":"\n\nSTMicroelectronics ST-LINK GDB server. Version 7.12.0\nCopyright (c) 2025, STMicroelectronics. All rights reserved.\n\nStarting server with the following options:\n Persistent Mode : Disabled\n Logging Level : 1\n Listen Port Number : 61234\n Status Refresh Delay : 15s\n Verbose Mode : Disabled\n SWD Debug : Enabled\n InitWhile : Enabled\n\n"}}
STMicroelectronics ST-LINK GDB server. Version 7.12.0
Copyright (c) 2025, STMicroelectronics. All rights reserved.
Starting server with the following options:
Persistent Mode : Disabled
Logging Level : 1
Listen Port Number : 61234
Status Refresh Delay : 15s
Verbose Mode : Disabled
SWD Debug : Enabled
InitWhile : Enabled
GDB notify async: thread-group-added,id="i1"
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"GNU gdb (GNU Tools for STM32 14.3.rel1.20251027-0700) 15.2.90.20241229-git\n"}}
GNU gdb (GNU Tools for STM32 14.3.rel1.20251027-0700) 15.2.90.20241229-git
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"Copyright (C) 2024 Free Software Foundation, Inc.\n"}}
Copyright (C) 2024 Free Software Foundation, Inc.
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\nThis is free software: you are free to change and redistribute it.\nThere is NO WARRANTY, to the extent permitted by law."}}
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"\nType \"show copying\" and \"show warranty\" for details.\n"}}
Type "show copying" and "show warranty" for details.
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"This GDB was configured as \"--host=aarch64-apple-darwin --target=arm-none-eabi\".\n"}}
This GDB was configured as "--host=aarch64-apple-darwin --target=arm-none-eabi".
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"Type \"show configuration\" for configuration details.\n"}}
Type "show configuration" for configuration details.
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"For bug reporting instructions, please see:\n"}}
For bug reporting instructions, please see:
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"<https://www.gnu.org/software/gdb/bugs/>.\n"}}
<https://www.gnu.org/software/gdb/bugs/>.
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"Find the GDB manual and other documentation resources online at:\n <"}}
Find the GDB manual and other documentation resources online at:
<To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"http://www.gnu.org/software/gdb/documentation/>.\n\n"}}
http://www.gnu.org/software/gdb/documentation/>.
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"For help, type \"help\".\n"}}
For help, type "help".
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"Type \"apropos word\" to search for commands related to \"word\".\n"}}
Type "apropos word" to search for commands related to "word".
GDB command: 0 -gdb-set non-stop off
GDB result: 0 done
GDB command: 1 -gdb-set mi-async on
GDB result: 1 done
From Debug Session: Step load program
GDB command: 2 -file-exec-and-symbols "/Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf"
GDB result: 2 done
From Debug Session: Step load symbols (STLink adapter)
GDB command: 3 -enable-pretty-printing
GDB result: 3 done
From Debug Session: Step load symbols /Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf (STLink adapter)
GDB command: 4 add-symbol-file "/Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf"
To client: {"seq":0,"type":"event","event":"output","body":{"category":"log","output":"add-symbol-file \"/Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf\" \n"}}
add-symbol-file "/Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf"
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"add symbol table from file \"/Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf\"\n"}}
add symbol table from file "/Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf"
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"(y or n) [answered Y; input not from terminal]\n"}}
(y or n) [answered Y; input not from terminal]
To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":"Reading symbols from /Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf...\n"}}
Reading symbols from /Users/hasanayan/source/midibits/firmware/app2/build/Debug/app.elf...
GDB result: 4 done
From Debug Session: Step connect to target
GDB command: 5 -target-select remote localhost:61234
GDB result: 5 error,msg="could not connect: Operation timed out."
From Debug Session: Step cleanup Gdb Client.
GDB command: 6 -gdb-exit
From Debug Session: Step cleanup GDB Server
GDB result: 6 exit
To client: {"seq":0,"type":"event","event":"output","body":{"category":"server","output":"cube is killed by signal SIGTERM"}}
cube is killed by signal SIGTERMTo client: {"seq":0,"type":"response","request_seq":2,"command":"launch","success":false,"message":"bound doStepConnectToTarget Failed: could not connect: Operation timed out.","body":{"error":{"id":1,"format":"bound doStepConnectToTarget Failed: could not connect: Operation timed out.","showUser":true}}}
And here is my launch.json
{
// 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": [
{
"type": "stlinkgdbtarget",
"request": "launch",
"name": "STM32Cube: STM32 Launch ST-Link GDB Server",
"origin": "snippet",
"cwd": "${workspaceFolder}",
"preBuild": "${command:st-stm32-ide-debug-launch.build}",
"runEntry": "main",
"verbose": true,
"imagesAndSymbols": [
{
"imageFileName": "${command:st-stm32-ide-debug-launch.get-projects-binary-from-context1}"
}
]
}
]
}
