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Zephyr project on STM32

   Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:
  • Install host dependencies.
  • Import toolchain and SDK.
  • Create, configure, build and manage apps.
  • Debug STM32.
You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench

System Workbench for STM32

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OpenOCD error when running/debugging

Posted by alxhoff on 2017-09-12 00:19

Hi all,

I am running into a problem when using a STlink v2 to program one of these cheap chineese STM32F103C8T6 boards that have been going around on ebay. It is only in system workbench that I cannot flash the board, running stlink from the command line lets me flash the board no worries.

The error I am receiving states:

OpenOCD child process termination

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

Details:

Unplugged target or STLink already in use or STLink USB driver not installed
Open On-Chip Debugger 0.9.0 (2015-09-02-10:42)
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: 950 kHz
adapter_nsrst_delay: 100
Info : tcl server disabled
Info : telnet server disabled
Info : clock speed 950 kHz
Error: open failed
in procedure ‘init’
in procedure ‘ocd_bouncer’


All i have modified from default was pointing the debugger to my /usr/bin binaries for OpenOCD and my gdb toolchain, although the errors were the same before I changed the binary locations.

I am not sure what other details I can post. It is being run on an Ubuntu 16.04 with workbench Version: 1.15.0.201708311556 machine with OpenOCD 0.9.0.

Any help would be greatly appreciated,

Alex

Reads: 15209
Link
Posted by alxhoff on 2017-09-13 10:45

So i’ve fixed my own problem incase anyone has this problem and stumbled accross this post. It was quite an easy fix. I downloaded the latest openocd release from

https://github.com/gnu-mcu-eclipse/openocd/releasesQuestion

Then in system workbench I changed the debug configuration script to one provided in the OpenOCD release.

Run->Debug Configurations->Configuration Script, set to user defined and navigate too scripts/target/stm32f1x.cfg in the release downloaded and bingo it works.

Link
Posted by allenhuffman on 2017-09-29 17:31

Thanks for posting what you discovered.

I am running in to the same error, with a clean install and fresh project (for a custom board). This didn’t help me, but at least gave me something else to try.

Web searches led me to a number of posts with various solutions to this, but none have worked yet.

Link

 

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