2024-08-09 02:30 AM
Hi,
Anyone having problem connecting STLINK on NUCLEO-H503RB board?
I have two boards not showing up in device manager (both W10 and W11 PCs). Tried different PCs, cables and result is the same: LD7 LED is not lit, LD1 red lit, green pulsing, LD3 not lit.
If I reset STLINK via JP1 jumper, shows up in device manager as STLINK V3 and in DFU mode in CUBE Prog (v2.17.0). I can update their firmware but after update, they disappear again from device manager and CUBE Prog.
I can access and program the target H503RB MCU with an external STLINK debugger.
Jumers on boards are at default positions and I tried other options, too. Tried connecting both target MCU and STLINK USBC ports at the same time, no luck.
Any pointers?
Thanks,
Tim
2024-08-09 03:27 AM
I think I found a workaround by accident:
- Connect USB cable at PC side
- Insert connector to STLINK USB port slowly, like 1mm/second. As soon as LD1 lits red, quickly insert the connector fully: It works. Can connect and debug normally.
Seemed firmware issue to me. Like need power before communicating to Windows.
So I tried versions:
- V3J10M3
- V3J13M4
- V3J15M6
- V3J15M7
All the same.
With this workaround, any reset to STLINK requires same work again
Tim
2024-08-09 03:33 AM
I have a video for the workaround. But I don't have permission to upload video
Tim