Solved
using stm32cubeide to debug stm32f767,it can use swv to trace a variable?
this is the swv setting. but I click resume button,the swv data trace timeline graph don`t respone.

this is the swv setting. but I click resume button,the swv data trace timeline graph don`t respone.

Here is my SWV usage on a F7 board. Sounds working like a charm.
Common pitfall is bad core clock frequency setting.
Then maybe you're trying to track an event which is too fast ? Please note SWO clock is not running same speed than core clock ...


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