A kind of arm-based multifunctional interface expansion device and method

Abstract

The multifunctional interface expansion device provided by the present invention sets corresponding physical layer processing units and network layer processing units for various conventional bus interfaces to realize mutual expansion between bus series interfaces and expansion interfaces; by setting and configuring the debugging unit, the work can be realized The setting of the mode and the real-time presentation of the transmitted data have good visibility and operability; through the error correction mechanism of the network layer protocol of each bus interface, the error correction and regeneration of the original data information can be realized, and the data can be effectively reduced. The bit error rate of the transmission improves the overall performance and reliability of the system; by setting the expansion interface unit, it is convenient for user testing and function expansion, such as adding new lower-level computer equipment or memory equipment, which can realize interconnection networking and form humanization and digitalization data transmission environment.

Description

technical field [0001] The invention relates to an extended interface capable of realizing data interaction between various interface devices, especially [0002] The invention relates to an ARM-based multifunctional interface expansion device and method. Background technique [0003] With the rapid development of computer technology, more and more emerging interface methods have emerged. The old interfaces on personal laptops, such as serial ports and parallel ports, have been gradually eliminated and replaced by emerging interfaces such as USB interfaces and network interfaces. . However, due to historical reasons, a large number of industrial electronic equipment and many civilian electronic products still use old-fashioned interfaces such as serial ports and parallel ports. It is difficult for these old-fashioned interfaces to communicate with current personal laptops. This situation is not conducive to the realization of digital control through personal computers, and...

AI Technical Summary

Problems solved by technology

For example, various serial port to USB, serial port to network port and other devices can be seen everywhere in the market. Although these products can solve the above problems to a certain extent, there are still many shortcomings. Their functions are too single and can only realize one-to-one extension, without any extension function, low degree of intelligence, can only be regarded as a primary extension equipment, the main idea of ​​the design of these devices is the extension of one interface level standard to another interface level standard, This is only an extension of the underlying physical layer, and does not involve the extension of the upper layer network layer protocol standard, so these devices cannot connect to devices with specific network layer protocol standards. In addition, the existing interface expansion devices usually do not have configuration and debugging functions, and cannot The real-time presentation of transmitted data and the setting of specific working modes also limit the application and development of these devices; of course, there are some devices, such as 8-way serial port-to-network port devices, although such devices solve the problem of multi-interface However, it is still impossible to realize the interconnection and communication between interfaces, and it is also impossible to realize the networking problem between various devices with different interfaces through this kind of equipment, and it still cannot meet all the needs.

Images