Can you tell me about the hardware circuit and protocol of USB serial port?

乱世煮酒论天下

Can you tell me about the hardware circuit and protocol of USB serial port? [Copy link]

The USB serial port has gone through decades, from 1.0 to the current 3.2. Not only has the speed increased, but the number of lines has also increased from four to eight.

Are the trapezoidal data cables, Android data cables, and Type-C commonly used in hardware circuits all USB?

What detailed information is recommended on the software agreement?

秦天qintian0303

USB and serial port are two different communication methods. From 1.0 to the current 3.2, it is USB, and the serial port has always been two data lines.

damiaa

USB Type-C is a USB interface standard that is smaller than Type-A and Type-B. It can be used in both PCs (host devices) and external devices (slave devices, such as mobile phones) . USB Type-C has 4 pairs of TX/RX wires, 2 pairs of USBD+/D-, a pair of SBU, 2 CCs, 4 VBUS and 4 ground wires .

wangerxian

Typec is an interface standard of USB, and its communication functions rely only on D+ and D-.

极限零

damiaa posted on 2024-4-23 08:49 USB Type-C is a USB interface standard with a smaller size than Type-A and Type-B. It can be used in both PCs (host devices) and...

In fact, I have always been curious. With more TYPE-C cables and smaller plug contact points, how can a mobile phone withstand the 6A charging current?

damiaa

Posted by Extreme Zero on 2024-4-24 08:48 Actually, I have always been curious. There are more TYPE-C cables, and the contact points of the plugs are smaller. Now the mobile phone can actually withstand the 6A charging current

The power supply wire is relatively thick and the distance is short. It reaches the board very quickly and generally does not cause heat.

乱世煮酒论天下

Qintianqintian0303 published on 2024-4-23 08:47 USB and serial port are two different communication methods. From 1.0 to the current 3.2, it is USB, and the serial port has always been two data lines

Can you recommend any information about USB protocols?

chunyang

Posted by Extreme Zero on 2024-4-24 08:48 Actually, I have always been curious. There are more TYPE-C cables, and the contact points of the plugs are smaller. Now the mobile phone can actually withstand the 6A charging current

The power supply circuit has multiple contacts connected in parallel.