编号： 毕业设计说明书 题 目： 51 单片机及常用输出 器件筛选装置设计 院（系）： 电子工程与自动化学院 专 业： 测控技术与仪器 学生姓名：学 号：指导老师： 职 称：题目类型： 理论讨论 实验讨论 工程设计 工程技术讨论 软件开发2014 年 5 月 10 日摘 要51 单片机及常用输出器件筛选装置，是为了满足实验室对 51 系列单片机、LCD、数码管、蜂鸣器等被大量使用的输出器件的回收利用的需求而设计的。系统主要由器件检测电路、控制电路、虚拟仪器软面板组成。器件检测电路以 51系列单片机、LCD、数码管、蜂鸣器为检测对象；51 单片机为控制电路的微处理器； LabVIEW 为虚拟仪器软件开发工具。虚拟仪器软件与微处理器间采纳 RS-232 串口通信。器件检测电路分为 LCD、数码管、蜂鸣器检测电路和单片机检测电路两部分，51 单片机在前者中是控制器，在后者中既是控制器又是被测对象。用户操作虚拟仪器软面板，向硬件电路发送测试指令、读取测试数据并显示结果。经过测试，系统可完成对 51 系列单片机、LCD、数码管、蜂鸣器基本功能的检测。系统具有一定的有用价值。关键词：虚拟仪器软面板；器件检测；串口通信；Abstract 51 single and common output devices selecting device, is designed to meet the needs of the laboratory to recovery 51 series, LCD, LED, buzzer, etc. output devices, which are widely used in design. System consists of device detection circuit、control circuit、and soft virtual instrument panel. The detected objection of device detection circuit is 51 series, LCD, LED, buzzer. 51 single is the microprocessor of control circuit. Virtual instrument software is developed by LabVIEW. RS-232 serial communication is used between virtual instrument and microprocessors. Device detection circuit is divided into two parts—LCD, LED, buzzer detection circuit and microcontroller detection circuit, and 51 single is the controller in the former, both the controller and the measured objection in the latter. Users operate the soft virtual instrument panel, which will send commands to ...
