SWV error with STM32H7

[scottro]

We developed our code using the NUCLEO-H743ZI2 (MB1364-H743ZI-E01) where printf over SWO worked great for debugging.  Now that we have ported our code to our custom board using the STM32H743IIK package, SWV no longer works.  It won't even launch (see attachment).  Is there something special I'm missing about the chip in this particular package?

[KDJEM.1]

Hello @scottro and welcome to the Community :),

Make sure that SWO pin is connected properly.

May this discussion can help you.

I hope this help you!

Kaouthar