摘要
针对360Mbps速率的串行数据采集与存储的设计要求,设计了EZ-USB FX2固件程序和设备驱动。本文介绍了EZ-USB FX2接口芯片Cy7c68013的结构和特点,通过分析EZ-USB FX2固件框架,给出了固件开发的实例。通过测试,固件能够正确初始化设备,成功完成设备的枚举过程,实现与主机的正常通信。并且对开发设备驱动程序的具体步骤和关键技术予以说明,使用Windows 98 DDK开发工具包来开发设备驱动程序,在此基础上实现了自动加载固件程序。
For the sake of the design require of serial data acquisition and storage with the speed of 360Mbps,designed EZ-USB FX2 firmware and device diver.This article was introduced the configuration and characteristic of EZ-USB FX2 interface chip Cy7c68013.According to analyze the firmware frame of EZ-USB FX2,an example of firmware development has been given.Analysis of the debug results shows that the firmware can exactly accomplish device initialization and device enumeration process,realize the normal communication between the hose and device.Then explain the material approach and key technology of the development of device diver,develop the device diver by Windows 98 DDK,and automatic download of firmware has been achieved.
出处
《微计算机信息》
2010年第20期162-164,共3页
Control & Automation
