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System Workbench for STM32


STM32VLDISCOVERY board debug problem (SYESTEM32)

Dear sir,
I’m working with a board STM32VLDISCOVERY on a chip STM32F100RBT6

When connect the board and press the RUN button, a message is displayed:

“OpenOCD child process termination

Reason:

Unplugged target or STLink already in use or STLink USB driver not installed

Open On-Chip Debugger 0.10.0-dev-00019-g5352c55 (2019-02-14-15:45)

Licensed under GNU GPL v2

For bug reports, read

http://openocd.org/doc/doxygen/bugs.html

srst_only separate srst_nogate srst_open_drain connect_assert_srst

Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD

adapter speed: 4000 kHz

adapter_nsrst_delay: 100

Info : clock speed 4000 kHz

Error: open failed (no matching adapter found)

in procedure ‘init’

in procedure ‘ocd_bouncer’

Unplugged target or STLink already in use or STLink USB driver not installed
Open On-Chip Debugger 0.10.0-dev-00019-g5352c55 (2019-02-14-15:45)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
srst_only separate srst_nogate srst_open_drain connect_assert_srst
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
adapter speed: 8000 kHz
adapter_nsrst_delay: 100
Info : clock speed 8000 kHz
Error: open failed (no matching adapter found)
in procedure ‘program’
in procedure ‘init’ called at file “embedded:startup.tcl”, line 485
in procedure ‘ocd_bouncer’
** OpenOCD init failed **
shutdown command invoked