dropped 'gdb' connection (error -400)

[matiase]

Hello,

I create project according to this tutorial https://visualgdb.com/tutorials/arm/stm32/nucleo411re/.

I have pcb NUCLEO F103RB. When I try to upload sample HAL project I can’t connect with microcontroller.

In the attachment I send screen from debugging settings.

Logs from test debugging:

C:\Users\MK\AppData\Local\VisualGDB\EmbeddedDebugPackages\com.sysprogs.arm.openocd\bin\openocd.exe -c “gdb_port 54462” -c “telnet_port 54463” -f interface/stlink-v2-1.cfg -f target/stm32f1x.cfg -c init -c “reset init” -c “echo VisualGDB_OpenOCD_Ready”
Open On-Chip Debugger 0.10.0 (2018-05-24) [https://github.com/sysprogs/openocd]
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
WARNING: interface/stlink-v2-1.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
adapter speed: 1000 kHz
adapter_nsrst_delay: 100
none separate
Info : Unable to match requested speed 1000 kHz, using 950 kHz
Info : Unable to match requested speed 1000 kHz, using 950 kHz
Info : clock speed 950 kHz
Info : STLINK v2 JTAG v28 API v2 SWIM v17 VID 0x0483 PID 0x374B
Info : using stlink api v2
Info : Target voltage: 3.265963
Info : stm32f1x.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : Listening on port 54462 for gdb connections
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0xd0024282 msp: 0x4b044800
VisualGDB_OpenOCD_Ready
Info : Listening on port 6666 for tcl connections
Info : Listening on port 54463 for telnet connections
Info : accepting ‘gdb’ connection on tcp/54462
Info : device id = 0x20036410
Info : flash size = 128kbytes
Info : dropped ‘gdb’ connection (error -400)

I tried change interface/stlink-v2-1.cfg to interface/stlink.cfg and speed from 1000 to 950 kHz, but I still have the same problem.

• This topic was modified 5 years, 6 months ago by matiase.
• This topic was modified 5 years, 6 months ago by matiase.

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[support]

Hi,

The text you attached doesn’t contain any specific error message, so the problem may not be on the OpenOCD’s side.

Please describe what exactly you are observing/expecting and also obtain and attach a gdb session log as described here so that we could see what is going on.

[Author]

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