Test approach for debugging serial port function with single board and system thereof

Abstract

The utility model discloses a testing method and a system to debug the serial port via the single board. The method comprises the procedures as below: connect the debug serial ports on the target single board with the serial ports on the upper computer via the cables; start up the upper computer and turn up the corresponding serial ports for configuration; start up the target single board and initialize the debug serial ports; the upper computer can transmit the character strings unidentified by the target single board to the lower computer via the debug serial ports; the upper computer can wait to receive. Within the preset time period, the upper computer can make the judgment upon whether the lower computer can return the corresponding character strings for analysis; if the character strings can return, the test is successfully done, if not, the test fails. The test results are displayed on the indication unit by the upper computer. The testing method and the system of the utility model have the advantages of higher automation, easy and reliable technology as well as lower testing cost, which are applicable to the functional test of the debug serial ports in the batch quantity.

Description

technical field [0001] The invention relates to a communication test method and system thereof, in particular to a test method and system for debugging a serial port. Background technique [0002] In the embedded operating system, the debugging serial port is usually used for monitoring program download and single-board debugging, especially when the single board or its system fails, the debugging serial port is usually an important means to find the problem. At present, various CPU debugging serial port implementations are relatively mature. For example, the SMCx port of Motorola's communication processor MPC82XX, which is widely used in the communication field, can be used as a debugging serial port. [0003] In the R&D and design of electronic design and manufacturing enterprises, the debugging serial port is usually led out from the CPU small system. When the CPU system is debugging and the single board is mass-produced, it is usually necessary to perform a functional te...

AI Technical Summary

Problems solved by technology

However, the shortcomings of this patent application are: additional hardware circuits are required, such as main control modules, communication modules, etc., and the test implementation is relatively complicated. Secondly, it is not suitable for batch function testing of debugging serial ports in the production process.

[0008] To sum up, the current test methods for debugging serial ports, one is simple to implement, but not suitable for batch testing in production; the other is complex to implement, requiring the introduction of complex software and hardware systems, and the implementation cost is high

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