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1、__________________________________________________TianjinUniversityofTechnologyandEducation毕业设计专业:班级学号:学生姓名:指导教师:二〇一〇年六月收集于网络,如有侵权请联系管理员删除__________________________________________________无线传输装置的设计与制作[摘要]无线传输通信技术,通常工作于ISM(工业、科学、医疗)频段,因其功率小、开发简单快速而在工业、民
2、用等领域应用广泛。本装置基于微功耗单片射频收发器nRF905设计,nRf905采用VLSIShockBurst技术,ShockBurst工作模式的特点是自动产生前导码和CRC(循环冗余校验),降低在应用中的平均电流消耗;采用Atmel公司的高性能、低功耗8位处理器ATmega16完成数据的处理和控制,ATmega16与nRF905之间的双向数据传输使用SPI接口。输出显示采用微功耗、体积小、显示内容丰富、超薄轻巧3V供电的液晶MC1602。输入键盘采用4×4中断式键盘,减少键盘查询过程对MCU的占用
3、时间。在完成硬件电路和系统软件调试后,实现了手持型的英文短信机,在100m通信距离,该无线传输装置工作稳定,能实现数据的有效传输,具有低功耗、抗干扰能力强、易携带等优点。[关键词]无线传输;英文短信机;ATmega16;nRF905;MC1602收集于网络,如有侵权请联系管理员删除__________________________________________________Wirelesstransmissionequipmentdesignandfabrication[Abstract]Wi
4、relesscommunicationstechnology,usuallyworkintheISM(industrial,scientific,medical)band,Itwasextensivelyappliedtotheindustrial,civilianinfieldsbecauseoftheirpowerofsmall,simpleandrapiddevelopment.Thisdevicebasedonmicro-powersingle-chipRFtransceivernRF905
5、design,nRf905byVLSIShockBursttechnology,ShockBurstmodeofoperationischaracterizedbyautomaticprecursorcodeandCRC(cyclicalredundancychecking),reducingtheapplicationoftheaveragecurrentconsumption,usingAtmel'shighperformance,low-powereightbitprocessorATmega
6、16completeddataprocessandcontrol,ATmega16andnRF905two-waydatatransmissionbetweentheuseoftheSPIinterface.OutputusingLCDMC1602withmicro-power,smallsize,showrichincontent,ultra-thinlightweight3Vpowersupply.Theinputkeyboarduses4×4-keyboardwithinterruptiont
7、oreducethekeyboardfortheprocessoccupationMCU'stime.afterthedebuggingofhardwareandsystemsoftwareimplementahand-heldmachinemessageinEnglish,onthe100mdistance,thewirelessdevicesworkstability,messagecantransmissedeffectively,withlowpower,anti-interferencec
8、apabilityandeasyBring.[Keywords]wirelesstransmission;English-SMS;ATmega16;nRF905;MC1602收集于网络,如有侵权请联系管理员删除__________________________________________________目录0引言-------------------------------------------------------------------11无线传输装置的