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微处理器作为组成电于线路的一种基本元件,己越来越多地用于电子仪器中。191型数字繁用表是带MC6802微处理器的智能仪器,它具有1k字节的监控程序,控制A/D转换、数据处理和测量结果的显示。up的引入和软、硬件的良好配合,使仪器的元器件数大大减少,可靠性大大提高,并且还获得了较好的精度和自动校准、非线性数字滤波、零功能等附加功能。它在智能仪器中有一定的典型性。本文从软硬件结合的角度阐述了该仪器的基本工作原理;分析了它的监控程序结构和各程序块的功能;给出了它的主程序流图和三个主要子程序块的流程图,希望在分析方法上和编程技巧上能起到抛砖引玉的作用。
Microprocessors, as a basic component of electronic circuits, are increasingly used in electronic instruments. The Model 191 Digital Multimeter is an intelligent instrument with a MC6802 microprocessor that has a 1k byte monitor that controls A / D conversion, data processing, and display of measurement results. up and the good combination of hardware and software, greatly reducing the number of components of the instrument, greatly improving the reliability, and also obtaining better accuracy and automatic calibration, non-linear digital filtering, zero function and other additional functions. It has some typical in the smart instrument. This paper describes the basic working principle of the instrument from the perspective of the combination of hardware and software, analyzes the structure of its monitoring program and the function of each block, and presents the flow chart of its main program flow chart and three main sub-program blocks, Hope that in the analysis of methods and programming skills can play a valuable role.