Device and method for realizing serial port packet capture based on single-chip microcomputer

Abstract

The invention discloses a device for achieving serial port package capturing based on a single chip microcomputer. First serial port communication equipment is connected with a first universal asynchronization receiving-transmitting transmission device. Second serial port communication equipment is connected with a second universal asynchronization receiving-transmitting transmission device. The output end of the first universal asynchronization receiving-transmitting transmission device is connected with the input end of the second universal asynchronization receiving-transmitting transmission device through a first communication lead wire. The input end of the first universal asynchronization receiving-transmitting transmission device is connected with the output end of the second universal asynchronization receiving-transmitting transmission device through a second communication lead wire. A first universal asynchronization receiving-transmitting transmission interface of the single chip microcomputer is connected into the first communication lead wire. A second universal asynchronization receiving-transmitting transmission interface is connected into the second communication lead wire. A third universal asynchronization receiving-transmitting transmission interface is connected with a third universal asynchronization receiving-transmitting transmission device. Serial port receiving-transmitting data are captured directly from a serial port data flow hardware part, each group of data generate receiving-transmitting serial numbers and timestamps automatically, and a user can analyze time and content of communication conveniently.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a device and method for realizing serial port packet capture based on a single-chip microcomputer. Background technique [0002] Serial port communication is a relatively common communication method. In the case of communication debugging and unclear communication protocol, etc., the serial port packet capture tool can be used to analyze the communication data. At present, there are many software serial port capture analysis tools on the market, but there are few hardware serial port capture tools. Technicians generally use logic analyzers to analyze serial port data waveforms to obtain data information, and logic analyzers are expensive, resulting in serial port data capture. The cost of the package is high, and the output data after parsing does not have serial numbers and time stamps, which is not convenient for real-time analysis of serial communication data. Contents...

AI Technical Summary

Problems solved by technology

At present, there are many software serial port capture analysis tools on the market, but there are few hardware serial port capture tools. Technicians generally use logic analyzers to analyze serial port data waveforms to obtain data information, and logic analyzers are expensive, resulting in serial port data capture. The cost of the package is high, and the output data after analysis does not have serial number and time stamp, which is not convenient for real-time analysis of serial communication data

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