STM32H563 Debug mode stopped working

[redsire]

Hello,

While debugging STM32H5 SPI2 (slave and master) in receive mode, the debug suddenly stopped and somehow I can't work in debug again.

[Andrew Neil]

You're going to need to give a lot more detail for anyone to be able to help!

See the Posting Tips:

https://community.st.com/t5/community-guidelines/how-to-write-your-question-to-maximize-your-chances-to-find-a/ta-p/575228

 

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@redsire wrote:

the debug suddenly stopped 

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What debugger (software & hardware) were you using?

What is your target hardware?

What, exactly, were you doing before it "stopped"?

What, exactly, happened?  Were there error messages? Was there smoke?

 

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@redsire wrote:

somehow I can't work in debug again.

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So what, exactly, does happen when you try to debug?

Can you debug any other target(s)? Can you load other firmware?

Have you reset and/or power-cycled the target before trying again?

[Ozone]

> You're going to need to give a lot more detail for anyone to be able to help!

Correct.
"Doesn't work anymore" contains nothing to really work with.

I would suspect a core lock-up, due to a faulty exception handler.

[redsire]

Hello,

 

I tried another debugger (J-Link) and it worked, then I tried connecting with ST-Link V2 again and it worked too.

Thanks to everyone who tried to help.

[Ozone]

Some (or most) SWD/JTAG debug pods have the capability to supply power to the debuggee.
Check this option is not enabled, unless you really want to use it.