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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 (registration required) various documents highlighting:

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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