I built STUSB4710AQTR design basing in evaluation board. I connected it to Microsoft Surface Go tablet which support USB 3.1 PD . However I don't see any negotiation through CC lane: only tablet send 16Hz .Please advice what can be problem and how to...

Hi,I am using STUSB4710AQTR. I build my board basing on reference design. Now I connected it to Microsoft Surface Go tablet. According datasheet this tablet support USB3.1 PD. However I even don't see any negotiation through CC lanes: only tablet sen...