11 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

11 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
11 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.

11 months ago.

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

11 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
11 months ago.

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