SWV doesn't work on STM32CubeIde 1.14 for Nucleo-H743ZI2

[Wojt]

Hi

I need this set up to debug harder issue I encountered. I tried to search through available post but can't find anything similar enough. In the past I used SWV on STM32F411 and it worked well so I have a bit experience.

Anyway:

-debug setup in CubeMX looks little bit different, I have chosen this:

-clock is set up to 480MHz:

- firmware of ST Link V3 is (I seen some posts on other problems suggesitng to downgrade, I don't know if it is a case here, moreover, I don't know how to dongrade to selected version):

-debug config seems to be recognizing proper clock:

-I try to set up SWV to see just uwTick, nothing happens in SWV data window when running the SW:

- surprisingly sometimes, when playing with sampling setting, I see sometimes few values displayed in trace window but it hangs up anyway and is randomly working = completely useless

Does anyone know if I am doing anything wrong or does any workaround exist?

Greetings

Wojt

[AScha.3 · Accepted solution]

Hi,

You set core clk to 480MHz - but in debug SWV you write 240MHz ; 

if not giving korrekt frequency , swv dont work.  So set 480, if core is at 480.

+

I choose this (its working):

[Pavel A.]

The number you give as the "Core clock" in the dialog is the value of global variable SystemCoreClock after you call SystemClock_Config() divided by a million. For example, 240000000 -> 240.0

(by the way - this is why the SWV/ITM trace won't work until SystemClock_Config returns 😉

[Wojt]

Thank you for quick help!