Re: [OpenOCD-user] Configuring builtin OpenOCD in STM32CubeIDE

[Christoph K. <ku...@ku...>]

Sorry, I was a bit hasty. So, step by step:

I added
 -c "arm semihosting enable" -c "arm semihosting_fileio enable"
to the OpenOCD Command line options field in STM32CubeIDE Debugger launch panel:
Show command line gives:
/Applications/STM32CubeIDE.app/Contents/Eclipse/plugins/com.st.stm32cube.ide.mcu.externaltools.openocd.macos64_2.4.200.202505051030/tools/bin/openocd "-f" "SEMI Debug.cfg" "-s" "/Users/kuku/STM32CubeIDE/workspace_1.4.0/SEMI" "-s" "/Applications/STM32CubeIDE.app/Contents/Eclipse/plugins/com.st.stm32cube.ide.mcu.debug.openocd_2.3.100.202501240831/resources/openocd/st_scripts" "-c" "arm semihosting enable" "-c" "arm semihosting_fileio enable" "-c" "gdb_report_data_abort enable" "-c" "gdb_port 3333" "-c" "tcl_port 6666" "-c" "telnet_port 4444"

Started and got the following error message:

Open On-Chip Debugger 0.12.0+dev-00623-g0ba753ca7 (2025-04-30-14:20) [https://github.com/STMicroelectronics/OpenOCD <https://github.com/STMicroelectronics/OpenOCD>]
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html <http://openocd.org/doc/doxygen/bugs.html>
Error: The 'arm semihosting' command must be used after 'init'.



So I thought, I'd add a -c "init" in front of that, which make the two options (arm semihosting enable and arm semihosting_fileio enable" obviously understood by
OpenOCD since it writes them out:

Open On-Chip Debugger 0.12.0+dev-00623-g0ba753ca7 (2025-04-30-14:20) [https://github.com/STMicroelectronics/OpenOCD <https://github.com/STMicroelectronics/OpenOCD>]
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html <http://openocd.org/doc/doxygen/bugs.html>
Info : STLINK V2J46M33 (API v2) VID:PID 0483:374B
Info : Target voltage: 3.229804
Info : Unable to match requested speed 8000 kHz, using 4000 kHz
Info : Unable to match requested speed 8000 kHz, using 4000 kHz
Info : clock speed 4000 kHz
Info : stlink_dap_op_connect(connect)
Info : SWD DPIDR 0x6ba02477
Info : [STM32H503CBTx.ap0] Examination succeed
Info : [STM32H503CBTx.cpu] Cortex-M33 r0p4 processor detected
Info : [STM32H503CBTx.cpu] target has 8 breakpoints, 4 watchpoints
STM32H503CBTx.cpu in Non-Secure state
STM32H503CBTx TrustZone disabled
STM32H503CBTx.cpu work-area address is set to 0x20000000
STM32H503CBTx.cpu work-area is enabled
Info : [STM32H503CBTx.cpu] Examination succeed
Info : gdb port disabled
Info : starting gdb server for STM32H503CBTx.cpu on 3333
Info : Listening on port 3333 for gdb connections
semihosting is enabled
semihosting fileio is enabled
Error: The 'gdb_report_data_abort' command must be used before 'init'.


But then this last line?

And as a control you can see the command line now:

/Applications/STM32CubeIDE.app/Contents/Eclipse/plugins/com.st.stm32cube.ide.mcu.externaltools.openocd.macos64_2.4.200.202505051030/tools/bin/openocd "-f" "SEMI Debug.cfg" "-s" "/Users/kuku/STM32CubeIDE/workspace_1.4.0/SEMI" "-s" "/Applications/STM32CubeIDE.app/Contents/Eclipse/plugins/com.st.stm32cube.ide.mcu.debug.openocd_2.3.100.202501240831/resources/openocd/st_scripts" "-c" "init" "-c" "arm semihosting enable" "-c" "arm semihosting_fileio enable" "-c" "gdb_report_data_abort enable" "-c" "gdb_port 3333" "-c" "tcl_port 6666" "-c" "telnet_port 4444"

> Am 16.09.2025 um 23:33 schrieb Tommy Murphy <tom...@ho...>:
> 
> With applied, I'm told that these commands have occur after an "init" command.
> So I added
> 
> -c "init" in front of the above two flags.
> 
> Result is this:
> Error: The 'gdb_report_data_abort' command must be used before 'init'.
> This is the complete command line of OpenOCD:
> 
> /Applications/STM32CubeIDE.app/Contents/Eclipse/plugins/com.st.stm32cube.ide.mcu.externaltools.openocd.macos64_2.4.200.202505051030/tools/bin/openocd "-f" "SEMI Debug.cfg" "-s" "/Users/kuku/STM32CubeIDE/workspace_1.4.0/SEMI" "-s" "/Applications/STM32CubeIDE.app/Contents/Eclipse/plugins/com.st.stm32cube.ide.mcu.debug.openocd_2.3.100.202501240831/resources/openocd/st_scripts" "-c" "arm semihosting enable" "-c" "arm semihosting_fileio enable" "-c" "gdb_report_data_abort enable" "-c" "gdb_port 3333" "-c" "tcl_port 6666" "-c" "telnet_port 4444"
> 
> There's no -c "init" in that command line.