2025-11-11 6:10 AM
For the last several days I have been trying to get the virtual COM port [VCP] of my STLINK-V3 MINIE to work together with my NUCLEO-H755ZI-Q. After realising that the VCP_RX/TX pins are not connected to the MIPI10 connector CN5 and thus soldering on my own cables and measuring the signal using an oscilloscope [confirming the signals were the expected 3.3V], I thought it should work.
However - even though the VCP was detected under Windows 11 and I double-checked the connection settings in my terminal application - I did not get any communication.
The solution seems to have been, to reprogram the V3 MINIE with the "STM32 Debug+Mass storage+VCP" firmware [Version V3J16M9]. After that it worked flawlessly [without changing anything else]. Previously the "STM32 Debug+VCP" V3J16M9 firmware version was flashed to it.
So my question is:
- Did I overlook some configuration option?
- Or is this a problem with the firmware and I should try to contact ST?
PS: The STLINK-V3 MINIE was bought quite recently - the sticker on it says "MB1762-V3MINIE-B01 K250401102".