摘要
本文介绍USB接口的485设备通信板卡和485设备检测软件的设计过程。板卡设计采用Cypress公司68013USB接口控制芯片,利用控制芯片的IO端口,通过FPGA芯片实现与485总线设备的通信。同时开发USB设备异步驱动,采用VC++开发环境,设计了485设备检测系统。
This article introduces the process of designing the communication board between 485- bus and USB and 485-device de- tection system. Applying USB 68013 interface control chip, through IO ports controlled by FPGA, implements the communication with 485-device. Explore an asynchronous driver of USB device and design the 485 device's detect and control system under VC++ environment.
出处
《微计算机信息》
北大核心
2007年第05Z期204-205,183,共3页
Control & Automation