3 years ago.

Does anyone else have a problem when debugging?

Every time I connect the board with my pc, Mbed studio is showing me this warning message:

Warning: The detected device 'USB Composite Device' does not support debugging. Debug functionality has been disabled.

I can program the board but I can't debug it. I am the only one? What is the reason for this? Is there an other way to debug my program?

Question relating to:

STM32 Nucleo-144 development board with STM32F767ZIT6 MCU, supports Arduino, ST Zio and morpho connectivity


Make sure that your FW is up to date: https://www.st.com/en/development-tools/stsw-link007.html

Regards, Jerome

posted by Jerome Coutant 19 Aug 2019

1 Answer

2 years, 12 months ago.

Hi there,

Some tips

Debug functionality are unavailable because a part of Mbed Studio called "pyOCD" not support your board. Supported boards you can found here. Keep in mind the Mbed Studio is still marked as "Public Beta" and its developing is slow.

If you really need debug with this board:

  • you can try to configure the pyOCD for your board
  • you can try to configure another IDE for Debugging and use an openOCD. The openOCD already support or can be simply modified for support your boad.
  • you can read Building offline with Qt Creator IDE wrote by Zoltan Hudak. There is also used the pyOCD but also openOCD.

Good luck J.