SWV not working with nucleo-wl55jc1

[mboua.1]

I'm trying to use printf with SWV.

I'm using a nucleo-wl55jc1 board (stm32wl55). I have soldered SB8 to connect SWO to stlink.

I have made all the config but the it doesn't show any trace.

this is my setup:

• Create an empty STM32 project for the NUCLEO-WL55JC1
• Initialize all peripherals with their default configuration: No
• In CubeMX: Set Debug/Trace: JTAG and Trace: Trace asynchronous sw

CLK config:

debug config:

SWV settings:

and i click on the red button after that

CODE:

override write function:

and then printf in main function

And ITM_sendchar(*ptr) is being executed, but no printf ouput in console.

also i checked with the oscilloscope the signals while debugging : I can see that SWDIO and SWCLK toggle and SWO is at 3.3V

[mboua.1 · Accepted solution]

Solved:

I have soldered the wrong bridge (SB6 instead of SB8) that means SWO not connected to STlink