Embedded Software Testing Based On Component Of Research

The test job of the embedded software is becoming more and more important with the more and more widely application of the embedded computer. One key problem in the test job is the fullness. That is what strategy to choose, what time to stop the test can ensure the reliability of the embedded software. This paper analyses the feature, classification measure and test measure of the embedded software, as well as the feature, classification measure and the main problem in the test of the component test. The paper puts forward a set of test strategy that is fit for MMB component, and put the MMB of a specific basic component into practice by using this strategy.MMB system uses IEC 61499 definition of function block of the concept and features for reference. Hidden within the algorithm and provided a standard interface, the interface and achievement of function block are mutual separation of embedded software. From users' point of view, the user applies MMB to practice based on MMB user manual, who concern whether the component can satisfy users account of functional correctness of the components and the physical meaning of integrity parameters. According embedded software and software components of the full test criteria; put forward to MMB system components functional test of criteria and parameters physical meaning of integrity testing criteria. Based on components functional test of criteria, it makes the entirety functional test on MMB system components in this paper, which include of 404 functional Test Case. The paper cited the system component, communication component, task component and integer calculation component and TSO Controller component Test Case. Combined coverage evaluation methods, components functional test coverage of MMB make an evaluation test. Finally, proposed based on state transform of test method. A configuration of the system as a black box, combination of system input state, to test system state and system output.As MMB system development methodology for application systems integration is not a traditional system development method, which greatly increased the efficiency and system design accuracy, simultaneity, which also tremendous save system development time. Finally, component-based embedded software system testing make a conclusion, and Put forward the system parameters on MMB fully automated test development direction.