How to use debug mode in NUCLEO-H743ZI2 ?

[Akash_k]

I have connected the nucleo board to my PC using micro usb cable but when I press degugging button in Keil uVision5 it shows "Internal Command error".

How to enable debugging in Nucleo board?

[Tesla DeLorean]

Make sure you have a high quality USB cable, perhaps reduce the SWD clock speed.

Make sure the code you are testing is not putting the device into a low power state, or otherwise reconfiguring the GPIO involved in the debug connection, ie PA13, PA14, PB3, etc.

Any other errors? Has Keil built the project completely?

[Akash_k]

Yes I am using a high quality USB cable and Keil has built the project completely. Do I need to change the jumper configuration on the nucleo board to enable debugging. Which debugging method should I choose to debug directly using USB cable.

[Akash_k · Accepted solution]

Debugging worked after updating the Keil uvision because STLink/V3 requires above Keil MDK-ARM version 5.26.