Multi-channel serial port testing system and establishing method

Abstract

Provided are a multi-channel serial port testing system and an establishing method. A serial port bridge and a multi-channel serial port testing module are added between a serial port debugger and a PC in a conventional serial port testing system, and the system comprises a master control single chip microcomputer circuit, a data bus and a channel single chip microcomputer circuit. The serial port debugger is connected with one serial port of the serial port bridge, the other serial port of the serial port bridge is connected with a serial port of the master control single chip microcomputer circuit, the master control single chip microcomputer circuit is connected with the channel single chip microcomputer circuit through a data bus, and a serial port of the channel single chip microcomputer circuit is connected with a serial port of the PC. The establishing method comprises the steps of establishing the multi-channel serial port testing module in a single chip microcomputer simulation platform, establishing program of the multi-channel serial port testing module in a single chip microcomputer software development platform and establishing the serial port bridge in the PC. By means of the system and the establishing method, a multi-channel serial port testing function, a testing instruction and testing result generation function and a testing result direct displaying function can be achieved, and the testing demands of embedded engineers based on serial ports can be met.

Description

technical field [0001] The invention relates to a multi-channel serial port test system and a construction method, which is based on single-chip circuit simulation technology, belongs to the technical field of embedded system development, and is especially suitable for embedded engineers to build and operate multi-channel tests based on serial ports, including multi-channel serial port test systems and build methods. Background technique [0002] The current PC-based serial port test system such as figure 1 As shown, it includes a serial port debugger, a PC serial port and the object under test, and the serial port debugger includes a data sending operation area and a data display area. The test method is as follows: input the test command in the data sending operation area of ​​the serial port debugger, send the test command directly to the tested object through the PC serial port, and the tested object directly sends the test response to the serial port debugger through t...

AI Technical Summary

Problems solved by technology

However, for embedded design engineers, it is difficult to write test interfaces and multi-channel serial port test programs with visual technologies such as VisualBasic, VisualC or LabVIEW

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