The thesis also designs the municipal electricity blackout and alarm circuit , the ac ( air condition ) switching control circuit , the watchdog circuit , the lcd display circuit , real - time clock circuit and the serial communication testing circuit 此外本文还设计了市电停电告警电路、空调开关控制电路、看门狗电路、 lcd显示电路、实时时钟电路和串口通讯测试电路。
Abstract : the test of sensors for auto engine is the b ase of vehicle diagnosis and it is necessary to study the feature and character of the sensors for auto . based on this , the test circuit of sensors was designed successfully 文摘:发动机用传感器的测试是进行发动机诊断的基础,故有必要对发动机用传感器输出信号的性质及特征加以探讨,本文就进行了这一方面的工作,并成功地设计了传感器的测试电路。
In this automated test system , computer communicates with instruments through vxi bus and controls plc to switch the test circuit through rs - 232 serial communication interface . as a consequence , this system can successfully test electrical parameters of solid state relay 然后根据ssr电参数自动测试系统总体性能指标的测试要求,提出用vxi总线技术组建ssr电参数自动测试系统方案,完成了整个系统的硬件设计。
3 ) we programmed a demo ' s software of circuits " test and fault diagnosis on borland c + + builder . this software can realize these functions , such as judging the testability , getting the minimum test set , testing circuit quickly and making a fault diagnosis 3 、利用borlandc + + builder语言编写了一套电路测试与诊断演示软件,能够实现对特定电路的可测性判断、故障覆盖率、快速测试和故障诊断等各项功能。
A circuit is designed to define the odd and even line to meet the layout ' s simplification requirement . to make full use of the system resource , an auto - test circuit is designed with test vector can be given through the internal bus and result vector can be detect by system 为了充分利用了嵌入式芯片丰富的系统资源,设计了简单实用的自测试电路,其测试向量和结果向量都可以通过总线被系统直接读取,系统执行相应的指令就可以完成相应的自测试过程。