Dynamic parameter configuration-based general framing and de-framing method for serial port data frames

Abstract

The invention discloses a dynamic parameter configuration-based general framing and de-framing method for serial port data frames, which comprises the following steps of: 1. performing conversion on data frames to be transmitted in a serial port unit according to frame format configuration parameters; 2. transmitting the converted data frames through the serial port unit; 3. receiving the converted data frames through the other serial port unit; and 4. performing de-framing on the data frames received by the other serial port unit according to the frame format configuration parameters. The data frames to be transmitted in the serial port units are matched in advance according to the preset frame format configuration parameters, the matched data frames to be transmitted are transmitted, and the received data frames are de-framed by the receiving serial port unit according to the preset frame format configuration parameters, therefore, the method can be applied to communication of the serial port units of different types; the invention provides the general method; and the method can also realize quick de-framing.

Description

Technical field [0001] The invention relates to a method for framing and deframing serial port data, in particular to a method for universal and fast framing and deframing of serial port data. Background technique [0002] The traditional serial data calculation method: when sending data, according to different communication protocols and frame formats, the actual physical quantity is converted into the required byte array through different software codes, and then sent out; when receiving data, according to different communication protocols and frames The format receives data from the hardware interface through different software codes and composes a complete frame of data. Then, according to the data frame format definition, the serial port data is converted into actual physical quantities in the way of first high and then low or first low and then high. For a single serial port interface (such as RS422, RS232, etc.) or a single frame format, this method is effective, but for d...

AI Technical Summary

Problems solved by technology

This method is effective for a single serial interface (such as RS422, RS232, etc.) or a single frame format, but for different serial interfaces or communication methods with multiple frame protocol formats, each communication protocol needs to be individually configured. The analysis of the software code needs to be re-encoded. In view of the fact that this method is not universal, it cannot meet the requirements of general and fast analysis of communication data. The reusability, versatility, and rapidity of the software coding for the analysis frame content of communication data in different formats are poor.

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