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SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world.
And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4.
You can get more information from the ac6-tools website and download two short videos (registration required) highlighting:

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