3 years, 9 months ago.

Debugging in Mbed Studio


if i connect my Nucleo f103 RB to my PC Mbed Studio shows a Massage that it is Imposible to debug this USB Device. Is it impossible to debug the f103 RB?

Question relating to:

Affordable and flexible platform to ease prototyping using a STM32F103RBT6 microcontroller.

5 Answers

3 years, 9 months ago.

Debugging uses PyOCD, so only boards that are recognized by PyOCD can be debugged at the moment.

See: https://os.mbed.com/docs/mbed-studio/0.4/introduction/system-requirements.html#supported-targets

Accepted Answer

Ah I missed "System requirements" page… thank you.

posted by Jan Kamidra 27 Feb 2019
3 years, 9 months ago.

Hi there,

Same issue here with NUCLEO-F401RE and Mbed Studio (Mac Version). When board plugged, message shown as seen below...


Obviously I have extensively used debug with this board in other environments.

3 years, 9 months ago.

Hi, this issue is probably on all NUCLEOS, I have same issue on F446 and F767. (Windows 10)

3 years, 9 months ago.


Maybe you have to update FW for NUCLEOs:



I tried it that yesterday but did not help.

posted by Jan Kamidra 28 Feb 2019

Worked for me. Thanks!

posted by Vadim Kusher 21 Oct 2019
3 years, 9 months ago.

Matthew's answer is right. There are simply a limited number of boards supported in the Mbed Studio public beta.