Embedded software automatic test system and method thereof

Abstract

The invention discloses an embedded software automatic test system, comprising a host and a CAN bus network system. The embedded software automatic test system is characterized in that the host is connected with a node controller through a serial port, the node controller respectively forms CAN networks with equipment to be tested through CAN buses; and a data buffer unit, a protocol conversion unit and a control unit are arranged in the node controller. The method of the embedded software automatic test system is as follows: (1) the host transmits preset use case parameters to a node controller through the serial port; (2) the protocol conversion unit converts CAN protocols and transmits the CAN protocols to each equipment to be tested in a broadcasting mode; (3) the equipment to be tested is processed according to use case parameters to feedback results; (4) data is prepared and the uploaded to the host; and (5) the host judges and outputs a test result. In the invention, the node controller is arranged between the host and the network system to realize data transmission between the host and each equipment to be tested in the CAN bus network, thus realizing test on the network performance and coordination of the whole system.

Description

technical field [0001] The invention relates to a software testing system and a testing method, in particular to an embedded software automatic testing system and a method thereof. Background technique [0002] Embedded software is the operating system and development tool software embedded in hardware. Its relationship in the industry is embodied as: chip design and manufacturing → embedded system software → embedded electronic equipment development and manufacturing. Widely used in national defense, industrial control, household, commercial, office, medical and other fields, such as our common mobile phones, handheld computers, digital cameras, set-top boxes, MP3, etc. are the result of intelligent transformation of traditional products with embedded software technology . Usually embedded systems have relatively high requirements on reliability, and the failure of embedded system security may lead to catastrophic consequences. Even non-safety systems will lead to serious ...

AI Technical Summary

Problems solved by technology

Embedded development is complicated by the fact that the host and target machines often run different operating systems and the architectures of the processors are also different from each other

In the prior art, the solutions for embedded software testing are basically carried out on independent single devices, but the system software in actual engineering applications is often scattered in a network system composed of multiple devices, and each device has its own The division of labor, and there is data communication between each other. A single test cannot test the overall performance and coordination of the entire system, and cannot find out the problems in the system function. As a client, the host cannot directly access the system composed of CAN bus network, so the current test methods and systems cannot meet the needs of practical engineering applications

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