摘要
介绍了由5个单片机AT89C52构成的针对5000位线阵CCD(电荷耦合器件)的分布式实时数据采集系统,系统采用RS-485通信协议的主从式网络通信结构;介绍了由DMA(直接存储器存取)传输方式构成的高速采集电路的设计和实现;用单片机C语言编写整个系统的控制软件;系统具有精度高、速度快、结构简单等特点,可广泛应用于现代高速高精度实时数据测量的军用、民用控制系统,具有一定的启发性和极大的应用前景。
A distributed real - time sampling system is introduced in this paper , which is consisted of 5 000 line-formation CCD of 5 AT89C52 microprocessors. The system adopts master-slave network communication architecture complying with RS-485 communication protocols. The design and implementation of highspeed sampling circuit using DMA transfer method are described. The control software for the whole system is programmed in C language. The system has the high precision, quick speed, simple structure and it can be applied extensively to the modern high speed data measuring system of the military and public control system, and it has certain illumination and broader application.
出处
《电子工程师》
2005年第9期57-59,共3页
Electronic Engineer
