UNIX type system serial port data framing method, driving device and readable storage medium

Abstract

The embodiment of the invention provides a UNIX type system serial port data framing method, a driving device and a readable storage medium, and the UNIX type system serial port data framing method comprises the following steps: adding a data framing function in a driving program; accurately distinguishing the arrival interval time between byte data randomly sent by a serial port by utilizing high real-time performance of a driving program, distributing two bytes which are lower than a preset interval time to the same data frame, and distributing bytes which are higher than the preset interval time to different data frames, so that in a UNIX type non-real-time advanced operating system, the real-time performance of serial port data framing is improved to the level of a real-time operating system. Compared with the real-time performance of serial port data framing on an application program layer of a UNIX type system, the real-time performance is improved to the millisecond level from the hundred millisecond level, meanwhile, industrial control products can be designed on the UNIX type system, the requirement for high timeliness needed by industrial control is met, and high-grade functions of an operating system can be used to complete complex demand design.

Description

technical field [0001] The invention relates to the field of hardware communication, in particular to a UNIX system serial port data framing method, a driving device and a readable storage medium. Background technique [0002] With the development of the industrial Internet and the increasing complexity of industrial application scenarios, traditional serial terminal devices need to be networked more and more. There are many traditional devices that transmit data through serial ports, and some devices such as sensor terminal devices are not suitable for supporting complex network interfaces due to their own needs, so the data of these devices has great limitations in the scope of use. It can only be used locally and cannot be linked with a remote server. Therefore, converting serial port data to network data has become a very common functional requirement. The process from serial port data to network data needs to encapsulate the bytes received by the serial port into fram...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a method for framing serial port data in UNIX systems, aiming to solve the problem of low performance and slow speed of serial port data framing at the application layer, which cannot meet the high-performance framing requirements of industrial control

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