基于FPGA的嵌入式指纹采集系统设计  

Embedded fingerprint acquisition system design based on FPGA

作　　者：印辉云[1] 刘云飞[1] 马玲玲[1] 顾敏明[1] 

机构地区：[1]南京林业大学信息科学技术学院,江苏南京210037

出　　处：《湖北大学学报（自然科学版）》2013年第1期85-88,共4页Journal of Hubei University：Natural Science

基　　金：江苏省物联网示范工程项目<智能环保监控与管理平台>资助

摘　　要：针对传统指纹采集系统实时性差及逻辑控制复杂等缺陷,提出一种基于FPGA的嵌入式指纹采集系统,讨论系统的组成原理、硬件电路设计与软件实现.该系统选用FPGA芯片EP2C35F672C6作为处理器,MBF200为指纹传感器,通过SPI连接实现其通信;应用片外SRAM保存采集的指纹图像数据,实现一种高效的嵌入式指纹采集系统.测试表明,该系统具有较高的易用性和实时性.Due to the deficiencies in real-time characteristics and logic control of traditional fingerprint acquisition system, an embedded fingerprint acquisition system design based on FPGA was proposed. The principle of system components, hardware circuit design and software implementation were discussed in this paper. With the FPGA chip EP2C35F672C6 as the processor and the MBF200 as the fingerprint sensor to realize data transfer by the SPI interface, an embedded fingerprint acquisition system with high efficiency was finished, in which the off-chip SRAM was used to save the fingerprint image data. Tests shew that this system had hitch usability and real-time characteristics.

关 键 词：FPGA MBF200 SPI 指纹采集 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]