I’m a new user on a Windows 10 PC running Visual Studio Community 2015.  I’m trying to use VisualGDB to create a basic SMT32Cube project on the STM3210E-EVAL board using an ST-Link / V2 programming adapter.

I’m following this Sysprogs tutorial.  I get to the point of performing my first build of the program (which builds successfully) and then try to put a break-point in the code and start the debugger when I get the VisualGDB dialog error: “init mode failed (unable to connect to the target)”  (see attached)

I have independently installed the drivers for the ST-Link as part of installing the STLink Utility software.  In device manager, if I ‘View Devices by Type’ “STM32 STLink” shows up under the ‘Universal Serial Bus devices’ category.  If I instead ‘View Devices by Connection’, I find it in the category: “ACPI x64-based PC\Microsoft ACPI-Compliant System\PCI Express Root Complex\Intel(R) USB 2.0 eXtensible Hose Controller – 1.0 (Microsoft)\USB Root Hub (USB 3.0)\Generic USB Hub”  and in there there is a ‘Generic USB Hub’ and the ‘STM32 STLink’ device.

I get this error when running from Visual Studio using either “Debug => Start Debugging” or “Debug => Start Debugging with GDB”

(I also tried to connect the ST Link to a different USB port on my computer but that has not helped.)

I can click on a link in the VisualGDB error dialog that says ‘view gdb stub log’ and get this readout:

C:\<my path>\AppData\Local\VisualGDB\EmbeddedDebugPackages\com.sysprogs.arm.openocd\bin\openocd.exe -c "gdb_port 53598" -c "telnet_port 53596" -f interface/stlink-v2.cfg -f target/stm32f1x.cfg -c init -c "reset init" -c "echo VisualGDB_OpenOCD_Ready"
Open On-Chip Debugger 0.12.0 (2023-10-02) [https://github.com/sysprogs/openocd]
Licensed under GNU GPL v2
libusb1 09e75e98b4d9ea7909e8837b7a3f00dda4589dc3
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
WARNING: interface/stlink-v2.cfg is deprecated, please switch to interface/stlink.cfg
Info : auto-selecting first available session transport "hla_swd". To override use 'transport select <transport>'.
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
Info : clock speed 1000 kHz
Info : STLINK V2J37S7 (API v2) VID:PID 0483:3748
Info : Target voltage: 3.232169
Error: init mode failed (unable to connect to the target)

Are there any ideas on what I’m doing wrong to get Visual Studio to step-debug my STM3210E-EVAL board?

• This topic was modified 10 months, 3 weeks ago by gboy.
• This topic was modified 10 months, 3 weeks ago by gboy.