The paper presents a program structure partition method based on the program dependence graph, i. e. Program Block Partition Method, which eases the testing process.
本文提出了一种基于程序依赖图的程序结构划分的测试方法，即程序块划分法。
System structure, parameter design formula and interchangeable program block diagram are shown.
给出了系统结构及参数设计公式，以及通用程序框图；
The operational principle of the system and serial communication method are presented. The hardware structure and program block diagram are given.
介绍了系统工作原理、串行通信方法，给出了硬件电路结构及程序框图。
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