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LBeau.1
LBeau.1
Associate II
November 6, 2020
Question

STM32H7 dual core debugging

What is ST's response to this document and the fact that I am witnessing such behaviour (see image) ?? Was there simply an error in this document? I was following the doc only to be frustrated by M4 hitting a brick wall with SIGTRAP, there is mention of "option bytes" by user TDK here. Is thee something that I am missing and I can edit these option bytes in either STM32cubeIDE or CUBEMX or is this strictly a CubeProgrammer ability? BOOT_CM4=0 in the option bytes??? Where is this?? Can I change this Via GUI interface?? Should I proceed and think nothing of it and consider this error in document?

Please clarify... Thank you.0693W000005Ag79QAC.jpg

https://community.st.com/s/question/0D53W000003MxVD/debugging-stm32h7-dual-core

https://www.st.com/resource/en/application_note/dm00629855-getting-started-with-projects-based-on-dualcore-stm32h7-microcontrollers-in-stm32cubeide-stmicroelectronics.pdf

This topic has been closed for replies.

10 replies

LBeau.1
LBeau.1Author
Associate II
November 7, 2020

hello?

LBeau.1
LBeau.1Author
Associate II
November 7, 2020

hello?

LBeau.1
LBeau.1Author
Associate II
November 9, 2020

hello st

LBeau.1
LBeau.1Author
Associate II
November 9, 2020

hello

BSpoe.1
BSpoe.1
Associate III
November 10, 2020

I'm not from ST but what is the problem with debugging? Are you not able to debug one core?

I don't understand what's with the document.

LBeau.1
LBeau.1Author
Associate II
November 10, 2020

In the document, "none" for reset method should be chosen for debugging the CM_4. CM_7 should have "connect under reset". I chose "connect under reset" for both.

The CM_7 will release the CM_4 in software. But I dont notice this.

BSpoe.1
BSpoe.1
Associate III
November 10, 2020

Are you trying to debug both cores at the same time?

LBeau.1
LBeau.1Author
Associate II
November 10, 2020

Not really, I was just trying to understand the exact mechanism at play according to ST's documentation.

I have seen not much video proof of a working workflow.

LBeau.1
LBeau.1Author
Associate II
November 11, 2020

st?

Yes I can debug... But can you make your documentation not error prone next time? Or do I not understand you?

LBeau.1
LBeau.1Author
Associate II
November 11, 2020

hello

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