stc89c52中文資料

本文首先介紹了數字電壓表的發展現狀及課題的背景和意義。本設計主要分為兩部分：硬件電路設計、軟件系統設計。其中，在硬件部分，較為詳細的討論了單片機電路的設計、STC89C52單片機的功能特性描述、A/D轉換電路，同時，對各部分接口電路作以介紹；在軟件部分，介紹了軟件所使用的編程語言和程序流程圖。本文設計的數字電壓表，其硬件電路所用元件較少、成本低、調節簡單；軟件采用C語言編程，其靈活性高，可讀性強。

This paper first introduces the development status quo of digital voltmeter and subject background and significance. This design is mainly divided into two parts: hardware circuit design, software system design. Which, in the hardware part, A detailed discussion of the single chip microcomputer circuit design, STC89C52 SCM feature description, A/D conversion circuit, at the same time, to introduce to each part of the interface circuit; In software part, introduces the software using programming languages and program flow chart. In this paper, design of digital voltmeter, the hardware circuit is used less components, low cost, simple adjustment; Software using C language programming, its high flexibility and strong readability.