Right, but after the physical layer with its differential lines we have plain 3.3V to the GPIO - which seems not to work at all. So I simply believe none of the TX lines is fire-breathing at the moment... bummer.
Right, but after the physical layer with its differential lines we have plain 3.3V to the GPIO - which seems not to work at all. So I simply believe none of the TX lines is fire-breathing at the moment... bummer.