摘要
对彩色 CRT显示器屏上光点特性的观测和分析可用于电子枪和偏转单元的设计改进。在完成此功能的显示测试系统中 ,可采用串口通信的方式实现个人计算机对数字 I/O口的控制。本文探讨了应用 VC++6.0中提供的MSComm控件编制串口通信程序 ,采用 RS-2 3 2实现 PC向下传输数据的具体方法 ,并简单介绍了采用 AT89C5 1单片机实现对数字
The designers of the guns and the deflection units usually observe the shape, the size and the gravity of the spot on the screen in order to valuate and improve the design of the guns or the deflection unit. In the display measurement system, the serial communication is developed to implement the digital I/O control. The paper presents the design and implementation method of the serial communication using RS-232 serial port, and introduces how to communicate using MSComm, an activeX object offered by VC++6.0. The control of the digital I/O by single chip AT89C51 is also given.
出处
《电子器件》
CAS
2004年第4期741-743,771,共4页
Chinese Journal of Electron Devices
