Mistake in Cube DF17 Connector Spec Table?

In the Cube documentation, in the table titled “The Cube 80-pin DF17 Connector” (link here, scroll down until you find the title) there is an entry for VBUS at Pin 29. It is listed as I, meaning input, but shouldn’t be an output because it comes out of the Cube and into the carrier board?

I am aware there is another connector the connects to the VBUS and its table is titled “HMI (Buzzer, USB, LEDs) | Port: USB”. But on that table as well, VBUS is listed as an output, meaning that is it outputted from that pin…but it’s an input for the Cube? I hope I explained the confusion well enough to create discussion. Thanks.

So VBUS is an input to the voltage sensing pin of the FMU, making it an input. But it also provides power to the carrier board and cube, making it also a power output. Due to the trace width, the USB on the cube should not be used for power and only for programming it while it’s on an empty carrier board.

1 Like