Serial hub and multi-serial high-speed communication method

Abstract

The invention provides a serial hub and a multi-serial high-speed communication method. The serial hub comprises a processing unit and a serial data switching unit, wherein the processing unit is connected with a host and is used for processing data and command signals transmitted from the host; the serial data switching unit is connected with the processing unit and a plurality of serial ports and is used for switching communication links or setting communication interface parameters according to control signals of the processing unit to ensure that a host port is connected with the corresponding serial port; the processing unit further comprises a universal asynchronous transceiver, a software buffer and a hardware buffer, wherein the universal asynchronous transceiver is connected with the host and is used for realizing the communication with the host, the software buffer is connected with the universal asynchronous transceiver and is used for storing overflow data, and the hardware buffer is connected with the software buffer and is used for overcoming time delay caused by the hardware buffer. The serial hub has the advantages of high communication speed, low error rate and wide application range.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a serial hub and a communication method thereof. Background technique [0002] At present, due to the rapid development of computers, the interface of the computer backend is also changing faster and faster. The new generation of computers has only one serial port at the back end. But in many industries, only one serial port is far from meeting the demand. [0003] In this case, in order to allow more serial devices to be connected to one serial port, a hub with multiple output terminals is often used for switching, so that one serial port can be connected to multiple serial devices. However, existing hubs cannot solve some common problems in serial communication: [0004] 1. Due to the slight difference between the two devices before and after the data transmission, there will be bit errors, especially when the device is transmitting at full speed, the bit error rate wi...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a serial port hub to solve the problems of low communication speed, high bit error rate and small application range in the existing serial port hub

[0009] Another object of the present invention is to provide a multi-serial port high-speed communication method to solve the problems of low speed and high bit error rate in the communication of existing serial port hubs

Images