Can't debug Nucleo L432KC (supported board)

Mbed Studio Bugs
1

Hi!
I can’t debug my L432KC in Mbed Studio. I can debug it with CubeIDE and it is also in the list of supported boards for debugging. In Mbed Studio the USB-Symbol is yellow and I can’t use the debug button.
I tried to upgrade the ST-Link firmware and the ST-Link USB driver, but it didn’t help.

Any suggestions on how to fix this?

Cheers,
Stefan

2

Hello,

just for clarification. Do you have the Mbed Studio and its modules updated?

I have the USB-symbol green and I can press the debug button but after the session start, it is ended immediately.

My setup:
MbedStudio 1.3 on Windows10 (St-link firmware V2J37M26).

  • Nucleo-L432KC - description above - “…exit code 1”
  • Disco-F746NG - “No cores were discovered!”
  • Nucleo-F767ZI - working

@arekzaluski any recommendation?

BR, Jan

3

Hi Jan,

just for clarification. Do you have the Mbed Studio and its modules updated?

I’m also running Mbed Studio 1.3 on Windows 10 and the ST-LinkUpgrade tool tells me that my firmware version is V2.J37.M26.

Capture

4

Hi Stefan,

Apologies, the L432KC was mistakenly marked as supported with debug capabilities on the website. We will update this information now.

Thanks,
Joe

5

Hello,

the target is still marked as supported - platform tree.

BR, Jan

6

Looks like it’s been 15 days, and it still shows up on the mbed development boards page after adding a filtering for “Debug”. I’m glad to know, though.

7

Hello,

I just created a Pull Request to add this nucleo IC to pyocd here: add NUCLEO-L432KC board support by trunet · Pull Request #1006 · pyocd/pyOCD · GitHub

With this, I can debug manually from the command line or from vscode.

Would you mind checking how can we get this on mbed studio?

Best regards,
Wagner Sartori Junior

8

The debugger works fine with Nucleo L432KC using the STM32 IDE, but it doesnt work with pyOCD which is used by MBED Studio.
thats very annoying …

9

That’s the reason I sent the PR. The PR is now merged into master, not sure when there’ll be a new release.

I made it to work here on mbed studio. You’ll have to git clone pyocd master, than depending on your os, on a Mac, /Library/Application Support/Mbed Studio/mbed-studio-tools/python/. you can /Library/Application Support/Mbed Studio/mbed-studio-tools/python/bin/pip install [your_pyocd_cloned_directory].

After that, go on mbed studio target, click on the IC chip icon, select cortex-m and change the --target from cortex-m to stm32l432kc.

1 Like
10

Thanks, but anyhow, i managed to compile mbed-os-v5.14 with the STM32 IDE and prefer to use the STM environment over the mbed-Studio.