基于ARM的嵌入式系统的研究

目录

摘 要 .......................................................................................................................................................... 2

Abstract ........................................................................................................................................................... 3

第一章 概 述 ........................................................................................................................................ 4

第二章 指纹识别系统的总体设计 ......................................................................................................... 9

2.1 主要功能 .................................................................................................................................. 10

2.2 器件的选择 .............................................................................................................................. 10

2.9 内存控制单元........................................................................................................................... 23

第三章 时钟单元 .................................................................................................................................. 25

3.1I/O端口 ........................................................................................................................................... 27

3．2 UART ........................................................................................................................................... 28

3.3 CI2接口 ....................................................................................................................................... 29

3．4指纹采集模块.............................................................................................................................. 30

3．5卡模块 ......................................................................................................................................... 32

3．6电源管理模块.............................................................................................................................. 33

3．7存储模块 ..................................................................................................................................... 34

3．8USB接口模块 .............................................................................................................................. 35

3．9语音模块 ..................................................................................................................................... 35

3.10加密模块 ...................................................................................................................................... 36

第四章系统软件设计 .................................................................................................................................. 37

4．1总体框架 ..................................................................................................................................... 37

4．2各模块流程.................................................................................................................................. 39

4．2．1指纹采集程序 ........................................................................................................................ 39

4．2．2 RF读卡程序 .......................................................................................................................... 41

4.2.3 FLASH读写程序 ..................................................................................................................... 43

4.3移植介绍 ........................................................................................................................................ 45

4.4数据上传 ........................................................................................................................................ 47

第五章系统调试与结果............................................................................................................................... 47

5．1调试环境 ..................................................................................................................................... 48

5．2调试方法和过程 .......................................................................................................................... 48

5．2．1 PCB制作 ............................................................................................................................... 48

5.2.2调试过程 ..................................................................................................................................... 50

5．3运行结果 ..................................................................................................................................... 52