摘要对于嵌入式设备，键盘是必不可少的输入设备。当输入按键较多时，在硬件设计和软件编程之间总存在着矛盾。对于不同的嵌入式设备需要进行专用的键盘硬件设计和编程调试，通用性差，使项目开发复杂化。标准PC键盘在工艺与技术上都已相当成熟，而且工作稳定，价格低廉。此课题着眼于工程应用，结合单片机技术设计开发一个支持PS/2接口标准PC键盘的接口设备，以满足嵌入式设备对键盘的应用需求。66364

本作品研究的内容是通过MCU与PS/2接口标准PC键盘的硬件连接，然后通过与单片机连接的射频发射模块发射数据，并通过软件控制实现大量数据的高速传输。无论是在国防军事方面，还是民用通讯方面都有很重要的研究意义。可改装数控操作设备、医疗设备、数据通信设备等，使数据控制、交换、采集简单化，对于数据通信在MCU系统中的应用和多单片机协同工作中具有非常宝贵的参考价值。

毕业论文关键词  PS/2接口  MCU核心  2.4G射频发射模块  USB通信  

毕业设计说明书（论文）外文摘要

Title      The Interface Design of Wireless Keyboard Based on Single-chip _________

Abstract

For embedded devices, keyboard input device is essential.When the input key is more,in total there was a contradiction between the hardware design and software programming.For different embedded devices,the need for dedicated the keyboard hardware design and programming and debugging,versatility,it makes project development complicated.Standard PC keyboard in the process and technology have been quite mature and stable,and its price is low.This topic is focus on engineering applications,combined with the MCU technology design and development of a support PS/2 interface standard PC keyboard interface device to meet the application requirements of embedded devices on the keyboard.

This work studies the hardware connection of the MCU and PS/2 interface standard，then RF transmitter module connected with the MCU transmits data， and high-speed transmission of large amounts of data through software control can bring out.No matter in defense and military or civilian communications,it has very important significance.It can convert CNC operation set,medical equipment,data communications equipment etc to make the data control,switching and acquisition simplistic.There is much reference value for data communications applications in MCU system and multi-MCU system work together with.  

Keywords: PS/2 interface   MCU core   2.4G RF transmitter module   USB communicate 

目  次

1  绪论 1

1.1  研究背景 1

1.2  无线传输的发展现状及前景 1

1.3  研究内容和要求 2

2  关键技术 3

2.1  PS/2数据采集接口 3

2.2  PS/2协议分析 3

2.3  MSP430单片机介绍 6

2.4  数据传输模块介绍 6

2.5  直接收发模式应用技术 9

2.6  ShockBurstTM收发模式 9

2.7  数据接收模式应用技术 10

2.8  MCU硬件串行通信应用技术 10

3  基本思路 11

3.1  整体设计思路和框图