Multi-serial-port communication self-closed-loop detection system and method

Abstract

The invention provides a multi-serial-port communication self-closed-loop detection system and method, and the system comprises: an interface form switching module which is provided with a switch array, and enables an input interface and an output interface of a tested multi-serial-port communication module to be interconnected according to a use state through the switch array; a test data generation and analysis comparison module which is provided with a programmable logic device and is used for carrying out self-closed-loop detection on the multi-serial-port communication module to carry outtest data generation, receiving, analysis and comparison so as to obtain a test result; and a test result display module which is used for displaying the test result. Output and input interfaces of the tested multi-serial-port communication module are interconnected according to an actual use state by using the switch array. The self-closed-loop detection method is realized by using a hardware programming language and then is operated by using the programmable characteristic of an FPGA, a self-closed-loop test is carried out, a test result is transmitted to a display interface through a single serial port, information is concise and clear, and more than 32 paths of communication results can be displayed simultaneously.

Description

technical field [0001] The invention relates to the technical field of on-board electronic computers, in particular to a multi-serial port communication self-closed-loop detection system and method. Background technique [0002] Because the serial port has better anti-interference characteristics and longer signal transmission distance, the most commonly used and most frequently used interface for communication between on-board electronic devices is the serial port. However, due to the limitations of serial port test equipment, general test equipment and test software generally only support 4 serial ports, resulting in the actual test, requiring a large number of general equipment and cables, complex connections, and various test interfaces, which cannot be achieved in real time. Pages, tests that are clear at a glance, especially the detection of faults in the process of testing and testing, often cannot be discovered and dealt with in time. [0003] In addition, because a...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-serial port communication self-closed-loop detection system and method to solve the problems of the existing serial port detection that the test process is complicated and the fault cannot be found in time

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