Cannot connect to STM32G0B1 custom board

[degaus]

Hello everyone,

I have designed a custom board with the STM32G0B1CET6N but I cannot connect to the nucleo st-link programmer.

I have removed the two jumpers from the nucleo board but when connecting to the board it doesn't get recognised by the ST-Link Utility or STM32Programmer.

I do get an issue with the driver on the Device Manager but when I connect it to another custom board it works fine.

Below is the schematic for my custom board.

Any help is really appreciated.

Matteo

[degaus]

Hi MM..1,

Thanks again for your help.

I have connected as your suggestion and now I do get a different error.

Need more investigation...I may get the board re-done with the VDDIO2 and VSS connected this time, just to make sure that the flying wires are not connected properly.

PS. Could you please let me know if I missed something else from schematic?

Thanks again.

Matteo

[Pavel A.]

> I am new on STM32 so forgive me for silly mistakes.

Desire of using ST-link of other ST board instead of a normal modern ST-link v3 (high speed, VCP) is one of these mistakes IMHO. Just doubles chance of damage and confusion, for nothing good.