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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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Can't flash STM32L476

Posted by hakols on 2016-02-11 17:28

Can’ JTAG a STM32L476 with a ST_LINK/v2.
I am using openOCD 0.10.0-dev course openOCD 0.9 don’t seam to have suport for STM32L4x

I get a Eclipse error pop-up and this printed in the openOCD log:
///////////////////////////////////////////////
Error: timed out while waiting for target halted
TARGET: stm32l4.cpu - Not halted
in procedure ‘reset’
in procedure ‘ocd_bouncer’
///////////////////////////////////////////////

I can flash the device with “STM32 ST-LINK Utility”

are there an bug in openOCD 0.10.0-dev?


Eclipse IDE for C/C++ Developers Version: Neon Milestone 4 (4.6.0M4) Build id: 20151218-1739
OpenSTM32 IDE 1.6.0.201512071631 fr.ac6.feature.mcu.ide.feature.group Ac6
OpenSTM32 Remote debugging support 1.6.0.201512071631 fr.ac6.feature.mcu.debug.feature.group Ac6
openOCD 0.10.0-dev-00287-g85cec24-dirty (2016-01-10-10:13)

Eclipse Flash Error.png (33.42 Kb)
Reads: 10047
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Posted by tarek bouchkati on 2016-02-12 00:10 Tunisia

Hello Håkan,

Which bard you are using ?

If you have created your own board, ensure that NRST is connected to your board, because openocd is using hardware reset (via NRST pin).

Regards,
Tarekb

Link

Posted by hakols on 2016-02-17 08:47

Sorry for late reply!

NRST seem to be connected correctly and I guess that pin is used by the “STM32 ST-LINK Utility” too witch successfully can flash the MCU.
All hardware is in the exactly the same configuration only the software is different.

BR Håkan Olsson

Link

Posted by romainsav on 2016-02-17 10:33

Hello Håkan,

Have you managed to flash it before ? I already had the same error because of a debug session not stopped...
Just in case.

Good luck,

Romain

Link

Posted by tarek bouchkati on 2016-02-17 11:10 Tunisia

Hello Håkan, Romain,

Håkan,
>> NRST seem to be connected correctly
OK, to confirm that using ST-Link Utilty > Menu (Target > Settings) : select Mode = Connect Under Reset & Reset Mode = Hardware Reset
and check if that ST-Link Utility cann connect to your board.

>> and I guess that pin is used by the “STM32 ST-LINK Utility” too witch successfully can flash the MCU.
No, ST-Link Utility can connect to your device using different reset modes (selectable from Target > Settings):

Connection ModePossible Reset Modes
Connect Under ResetHardware Reset
Normal(Software System / Core / Hardware) Reset
HotplugNo Reset


Romain
>> I already had the same error because of a debug session not stopped...
When a debug session is not stopped a different message appears saying that openOCD cannot connect to MCU, but in this case there is a reset timeout.

Best Regards,
Tarek

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