ABSTRACT
However, in the embedded system applications, an upper machine often need to test many lower machines simultaneously, whose functions are not same, fox example, some of them are responsible for data acquisition, some other are used to convert protocol. What’s more, Different application of the various protocols has different functions. Therefore, in this case, it has some practical application significance to achieve an upper machine testing multi-audience-bit machine online, and to improve the accuracy of fault location and the coverage rate of test case.
