SWO doesn't work

[Hwoo-]

Hi, everyone

I use stm32f429ZI (180MHz)​

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The setting contents were attached to the file

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Any advice would be appreciated

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Best regards,

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[Tesla DeLorean]

What board?

Is PB3 / SWO pin wired to debugger or needs solder bridge made​?

Does ITM_SendChar() work?

Do you have plumbing working so STDIO uses SWV?​

[mattias norlander]

The CubeMX configuration to enable Debug == Trace Asynchronous Sw, is actually not required at all with CubeIDE. Why? At debug launch, the CubeIDE will configure all needed registers on the device to allow SWV trace.

I also think that the first test should be to just use ITM_SendChar() directly to print a character on ITM-port 0. If this works, then you have to look at glueing it together in syscalls.c:_write() function to have printfs directed to ITM-port 0...