基于A7102的无线透明传输模块设计

基于A7102的无线透明传输模块设计

文档编号:DZXX047 文档字数:10761,页数:44

摘要
随着信息技术的不断发展，各种信息传输方式的广泛应用，其中无线传输正成为其中的后起之秀，展现出巨大的生命力和市场前景。和有线传输相比，无线传输的优势相当明显：一是成本低，省去大量布线，使环境清爽简洁；二是建网快捷，无需改造，即装即用；三是适应性好，可应用于某些特殊环境；四是扩展性好，只需将设备与无线数据传输模块相连接就可以投入使用[1]。
正是由于无线传输方式的诸多优点，使其不断的融入到百姓的学习、生活和工作中。相信随着无线技术的不断发展成熟，无线通信的应该领域会更加宽广，成本会更加低廉，传输会更加可靠。
本毕业设计就是通过STC11L04E单片机控制nRF903SE微功率无线通讯模块，将数据从一台计算机的串口发送数据至单片机，再通过nRF903SE无线通信模块发送至另一块RF903SE模块，最终把数据传输到另一台计算机，实现数据的透明传输。

关键词：nRF903SE，STC11L04E，无线通信

ABSTRACT
With the development of information technology, there are various of data transmission way in use, among them the wireless transmission develop much more fast, and it shows the grate vitality and the market prospect. Compare with traditional transmission, the advantage of wireless transmission is outstanding: firstly, wireless transmission is cheap and can reduce a lot of wire to make the environment clear; secondly it fast to build, needless to Revolution, can be used as it installed; thirty wireless transmission easy to adapt, can be used in special environment; lastly it is to expend, it can be used once you connect with other equipment.
Because of all the advantage, the wireless transmission can be widely used in people's study, life and work. It can be seen with the development of wireless technology, wireless transmission will used more wide, more cheaper and more reliable.
My graduation design is by using the micro processor of STC11L04E to control the RF903SE micropower wireless communication module for transmit data from a computer's serial port, then with the RF903SE micropower wireless communication module to send data to another RF903SE micropower wireless communication module, after that the RF903SE send the data to the another micro processor which connect to it, at last, the data successfully to the destination, the another computer. What we done achieve the transparent transmission of data.

Keywords: nRF903SE, STC11L04E, wireless communication

摘要 I
ABSTRACT II
第1章引言 1
1.1设计背景 1
1.2 设计目标 1
第2章系统方案比较 2
2.1 传输模块方案比较 2
2.2 微处理器选择比较 3
2.3 方案论证 3
第3章系统总体设计和主要芯片选择 4
3.1 系统总体设计 4
3.2 主要芯片介绍 4
3.2.1 STC11L04E 4
3.2.2 nRF903SE 5
第4章系统硬件设计 6
4.1 电源模块 6
4.2 串口通信模块 6
4.3 无线通信模块 7
4.3.1 模块芯片及外围电路 8
4.3.2 模块性能及特点 8
4.3.3 接口电路管脚说明 9
4.3.4 SPI时序 10
4.3.5 无线通信模块电路 10
4.4 微处理器外围电路 11
第5章系统软件设计 12
5.1 主程序 12
5.2 串口设定驱动程序 12
5.3 nRF903模块驱动程序 12
5.3.1模拟SPI 12
5.3.2模块复位 13
5.3.3读写nRF903内部寄存器 14
第6章系统调试 16
6.1 硬件调试 16
6.2 软件调试 16
第7章毕业设计总结 18
致谢 19
参考文献 20
附录I: 系统原理图 21
附录Ⅱ: 源代码 22

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