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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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Using the ST-LINK debugger with 3V3 external power supply

Posted by flavio.renga on 2017-11-04 19:22

Dear all,
I’m working on the development of a new prototype using the NUCLEO F303RE platform.
I need to power it by using an external 3.3V power supply, but I still want to program and debug it by using the integrated ST-LINK.
If using an external 3V3 power supply, the datasheet indicates that the following jumpers must be removed:
- SB2 (3V3 regulator)
- SB12 (NRST)
The problem is that if we remove SB12, I can’t use the integrated ST-LINK (the NRST signal is unconnected!).

This is the question:
__Is it possible to use the NUCLEO F303RE platform powered by an external 3V3 voltage (SB2 OFF), but programming it with the embedded ST-LINK (SB12 ON)?
__

Thanks in advance

Flavio

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