Described in this paper is a simple and low-cost circuit that can control and acquire many commercial CCD sensors using a interface based on the Enhanced Parallel Port Protocol. 介绍一个简单而廉价的电路,采用增强并口EPP协议,用中断方法,以C语言编程实现多种新一代线性CCD传感器信号的采集和控制。
The circuit designing of data acquisition board, especially of the parallel communication interface is thoroughly analyzed and the protocol of communication between PC and the data acquisition board is defined. 本文重点论述了数据采集板硬件电路的设计,特别是并行通信接口电路的设计,定义了上下位机相互间通信的协议。
Hardware circuit design, a detailed description of the communication between the train control center and the CAN interface board rules, the application of Ethernet and CAN bus protocol. 介绍了硬件电路设计之后,还详细描述了列控中心与CAN接口板之间的通信规则,以太网以及CAN总线协议的应用。