What is the general interface used by USB flash drives in microcomputers?
- 藏色散人Original
- 2020-04-14 09:29:567182browse
What is the general interface used by USB flash drives in microcomputers?
The interface used by the USB flash drive in the microcomputer is generally the USB port.
USB Introduction
Universal Serial Bus (English: Universal Serial Bus, abbreviation: USB) is a serial bus standard and an input and output interface technology Standards are widely used in information and communication products such as personal computers and mobile devices, and have been extended to photographic equipment, digital televisions (set-top boxes), game consoles and other related fields. The latest generation is USB 3.1, with a transmission speed of 10Gbit/s, a three-stage voltage of 5V/12V/20V, and a maximum power supply of 100W. The new Type C plug type is no longer divided into positive and negative.
Working Principle
USB is an external bus standard that regulates the connection and communication between computers and external devices. The USB interface has hot-swappable function. The USB interface can connect a variety of peripherals, such as mice and keyboards. USB was jointly launched in 1996 by Intel and other companies at the end of 1994. It has successfully replaced the serial port and parallel port and has become a must-have interface for today's computers and a large number of smart devices. The USB version has experienced years of development and has now developed into version 3.0. For most engineers, the main obstacles in developing USB2.0 interface products are: facing the complex USB2.0 protocol, writing their own USB device drivers, and being familiar with microcontroller programming. This not only requires considerable VC programming experience, but also the ability to write USB interface hardware (firmware) programs. So most people gave up developing USB products themselves.
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