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基于MSP430G2452微控制器的LaunchPad Value Line开发包实现心率监测

2021-11-03 02:05:03

这篇应用报告描述了一种低成本,基于 MSP430™ LaunchPad Value Line开发工具包(MSP-EXP430G2)的监测心率解决方案,此开发工具包使用MSP430G2xx微控制器(MCU)。心电图(EKG)信号在被送到微处理器取样和处理之前已经被一块子板放大和过滤。每分钟心跳数据通过Lanuchpad上的反向通道UART-overUSB传送给电脑。而且,可以通过一个连接在子板上的六排针的eZ430射频(RF)目标使用 SimplicitTI™网络协议来无线传输数据。此系统电源可来自USB电源,一个CR20323伏纽扣电池,或者两个AA/AAA电池。

 

 

目录

1 简介 ........................................................................................................................... 2

2 硬件描述 ...................................................................................................................... 3

3 软件 ........................................................................................................................... 6

4 参考 ........................................................................................................................... 7

Appendix A 放大器的选择 ....................................................................................................... 9

Appendix B 使用反向通道UART的USB有线连接演示 ...................................................................... 11

Appendix C 通过eZ430射频目标板的无线UART演示 ....................................................................... 13

Appendix D 硬件原理图 ........................................................................................................ 15

List of Figures

1 人体心脏解剖图(左)和心电图(右) .................................................................................... 2

2 手指检测电路原理图 ........................................................................................................ 3

3 软件流程图................................................................................................................... 6

4 心率监测设置(左边)和电脑上的UART输出(右边) ................................................................ 7

5 硬件原理图(1/2页) ......................................................................................................... 15

6 硬件原理图(2/2页) ......................................................................................................... 16

List of Tables

1 LaunchPad端口/引脚功能对应表 - 左排针 ............................................................................... 4

2 LaunchPad端口/引脚功能对应表 - 右排针 ............................................................................... 4

3 电源电流消耗 ................................................................................................................ 5

4 仪表放大器的比较........................................................................................................... 9

5 运放的比较 ................................................................................................................. 10