文档介绍：基于单片机的无线鼠标的设计
摘要随着计算机的不断普及,计算机周边器件之中的鼠标也得到了迅速的发展。无线鼠标则是电脑周边器件与无线通信技术的完美结合物。MSP430单片机是一种通常用于家庭的高性能低功耗的人机接口设备(HID)应用,如:无线鼠标或键盘。本应用报告描述了一个全功能的无线鼠标的参考设计,由MSP430单片机组成的超低功耗微控制器。该方案解决了无线鼠标三个部分,包括Avago Technologies的超低功耗的ADNS - 3040光学鼠标传感器,以及TRF7950 27兆赫发射模块,相应的USB接收适配器都进行了讨论。完整的硬件示意图,无线鼠标发射原理图,USB无线接收示意图,与源代码都提供了一个完整的参考设计方案。可以实现基于MSP430单片机无线鼠标的设计。
关键词单片机;光学鼠标传感器;发射模块;USB接收适配器
Wireless mouse with MCU Design
School of Physics and Electronic Information, Huaibei Coal Industuy Terachers College, 235000
Abstract Wireless Mouse is puter peripheral device and munication technology the bination of things. MSP430 MCU is monly used family of many high-performance low-power human interface device (HID) applications, such as: wireless mouse or keyboard. This application report describes a fully functional wireless mouse reference design, from position of ultra-low power MSP430 MCU microcontrollers. The program solves the wireless mouse three parts, including Avago Technologies of the ultra-low-power ADNS - 3040 optical mouse sensor, as well as the TRF7950 27 MHz transmitter module, the corresponding USB receiver adapters are discussed. plete hardware schematic diagram launches wireless mouse, USB wireless receiver schematic, with the source code provides plete reference design. Based on MSP430 MCU enables wireless mouse design.
Keywords Microcontroller; optical mouse sensor; Transmitter Module; USB Receiver Adapter
目次
1导言 5
2 鼠标发射机的硬件体系结构 6
MSP430 单片机 6
MSP430 单片机的特点 7
振荡器和定时器 8
MSP430单片机I/O端口控制特点 10
MSP430与IIC总线器件接口 11
调试接口 12
中断 12
ADNS-3040光学鼠标传感器 13
27 - MHz的TRF7950发射模块 14
机械组件(滚轮和按钮) 14
3 USB接收适配器 16
TRF 7900 27-MHz的RF接收器 16
CY7C63743USB微控制器 17
MSP430低功耗模式 17
4 鼠标发射机:软件体系结构 18
滚动轮解码原理图: 18
ADNS-3040光学鼠标传感器设备的驱动程序 18
米勒编码体系流程图和循环校验码 19
米勒编码 19
循环校验编码 20
TRF7950发射机设备驱动程序 20
5 结论 22
6 参考文献 22
附录一:无线鼠标发射原理图 23
附录二:USB接收适配器原理图 24
附录3 源代码: 25
1导言
在电子技术日益发展的