基于EPP协议图象数据采集卡的设计及实现

详细信息

Design and Implementaion of Collecting Card of Image and Data Based on EPP Protocol

1.
Electronics Research Institute of China Academy of Sciences, Beijing 100080, China.2.Beijing Campus of China University of Mining and Technology, Beijing 100083, China

摘要: 基于并口EPP协议的图象数据采集卡适用于笔记本电脑 ,从而使数据采集设备具有便携性。文章介绍了并口EPP协议 ,用VHDL语言实现了FIFO读写操作逻辑和EPP协议的数据读周期 ,给出了数据采集卡的硬件结构图及显示程序流程图。
- 数据采集 /
- 图象 /
- EPP协议 /
- CPLD
Abstract: Collecting card of image and data based on parallel port protocol(EPP) can be applied to notebook PC and make data collecting equipments more portable.In this paper,EPP protocol was introduced and the logic of FIFO read/write operations and data read cycle of EPP protocol were realized with VHDL language.Meanwhile, hardware structure graph of data collecting card and the flow chart of display programme were given.
- data collection /
- image /
- EPP protocol /
- CPLD