About USB

ZILIdashen

About USB [Copy link]

Does anyone know which two signal lines of 12-pin TYPE_C the two signal lines D+D- of TYPE_A in the data cable are connected to? I looked it up on Baidu and some said they are connected to CC1, CC2, some said they are connected to D+D-, and some said they are connected to SBU1, SBU2. Is there anyone with experience in this regard?

chunyang

Just connect Vcc, GND, D+, and D- accordingly.

chunyang

Type C is compatible with USB2.0 and lower versions of USB. The 4 wires in the middle are USB2.0 interfaces. Just connect them in sequence according to the same-named ends. Just be sure to connect both sides, otherwise it cannot be plugged in reverse.

ZILIdashen

chunyang posted on 2023-5-25 14:23 Type C is compatible with USB2.0 and lower versions of USB. The 4 wires in the middle are the USB2.0 interface. Just connect them in sequence according to the same name. Just pay attention...

Ok thanks, I'll try it

吾妻思萌

Look at the official definition of the socket diagram, which one is the global unified standard

wangerxian

I looked at my previous TypeeC design, CC1 and CC2 are connected to a 5.1K pull-down, and then D+D- is connected normally.

hjl2832

Connect D+ and D-, CC1 and CC2 are inserted forward and backward, detect whether it is inserted or not, normally connect low level to let the chip always judge it as inserted, SBU1 and SBU2 can be left unconnected. No impact.

秦天qintian0303

Must be connected to D+ and D-

led2015

The connection between USB TYPE_A and TYPE_C usually requires the use of a converter or adapter.