printf not working via ITM_Sendchar, _write never called

[hegde_08]

I am trying to use SWD for printing using ITM_Sendchar, Printf not calling _write, I tried to put breakpoint and see, But it is not hitting breakpoint

[hegde_08]

How do I check this? any steps would be helpful

In debug configuration, It is enabled already

[Andrew Neil]

SB15 is a Solder Bridge.

A Solder Bridge allows a connection to be made or broken - they perform the same function as jumper links:

Specifically, SB15 allows the SWO connection between the STM32F303RE microcontroller and the ST-Link to be made or broken.

The link needs to be "made" to connect the SWO from the STM32F303RE microcontroller to the ST-Link.

ST seem to have omitted to mark which is the default here - so you'll have to check by looking at your board

@STOne-32 - the bold highlight on the default option seems to be missing for a number of them.

[hegde_08]

This is the board I got

[Andrew Neil]

So check to see if SB15 is open or closed

[hegde_08]

I am new to this, What exactly need to be checked in the board

[hegde_08]

This is how it looks

[hegde_08]

I also tried to change the core clock, default waf 16, But in the manual I saw that it is 72, So i changed that also

[hegde_08]

But Still I cannot see the logs in Trace, What I am suppose to do?

[hegde_08]

Hello @Andrew Neil , Any other suggestions to make this work?

[Andrew Neil]

No, sorry - out of ideas.

I would just use a UART...