摘要
介绍了基于USB2.0的农田数据采集系统中主控芯片EZ-USB FX2利用可编程控制接口GPIF,与外设进行高速数据传输的基本机制和软配置波形描述符的实现原理;详细阐述了EZ-USB FX2固件程序开发框架;最后,给出了据此进行基于GPIF的固件设计基本方法和实例。
This paper presents the basic mechanism in field information acquisition system based on USB 2.0 that EZ - USB FX2 transfers high - speed data with external devices through GPIF , and the practical principle of soft configuration for Wave - Descriptor. Then the development str-ructure of firmware are discussed in detail, at last a primary method for designing firmware based on GPIF is proposed and also an example for it is given.
出处
《农机化研究》
北大核心
2008年第10期148-150,共3页
Journal of Agricultural Mechanization Research
作者简介
李强（1973-）男，河北保定人，讲师，（E—mail）li_gulit486@sohu．com.
