基于单片机及nRF2401的无线通信模块

山东科技大学学士学位论文目录I摘要本文设计了一种以AT89S52单片机为控制核心的无线通信控制模块，详细说明了该系统的基本原理、主要电路、硬件框架以及软件框架。整个系统采用模块化设计，主要包括单片机与下位机之间的无线通信控制电路，以及无线通信模块与PC上位机之间基于串行接口RS-232标准的串行通信接口电路和USB高速通信接口电路。该通信控制系统通过PC上位机的RS-232串行通信和USB高速通信，从而通过无线通信控制模块形成与下位机的联系，控制下位机运动控制器，并且将通信接收的数据保存到扩展的存储器内。本模块的通信方法简便，除了可以进行远程实时控制外，还可广泛的应用于工业监控和数据采集系统。本系统具有性能可靠、抗干扰能力强、功耗低、性价比高等优点，在无线通信领域具有重要的应用价值和良好的发展前景。关键字：无线通信控制；AT89S52；nRF2401；串行通信山东科技大学学士学位论文目录IIAbstractThispaperintroducesadesignAT89S52singlechipcontrolwiththecoreofwirelesscommunicationcontrolmoduledesignsystem,detailedinstructionsonthesystemofbasicprinciple,hardwareframe,maincircuitandsoftwareframe.Thewholesystemusesmodulardesign,includingbetweenmicrocontrollerandlowerlevelcomputerwirelesscommunicationcontrolcircuit,andwirelesscommunicationmodulewithPCbasedonserialinterfacebetweentheRS-232standardserialcommunicationinterfacecircuitandUSBhigh-speedcommunicationinterfacecircuit.ThiscommunicationcontrolsystemthroughthePC'sRS-232serialcommunicationandUSBhigh-speedcommunications,thusthroughwirelesscommunicationcontrolmoduleformationandlowerlevelcomputerconnection,control,andamachinemotioncontrollerwillreceivedatastoragetocommunicationwithinthememoryexpansion.Thismodulecommunicationmethodissimple,remotingreal-timecontroloutside,stillcanbewidelyusedinindustrialsupervisorycontrolanddataacquisitionsystem.Thissystemhasreliableperformance,stronganti-jammingcapability,lowpowerconsumption,highperformance-to-priceadvantagesinwirelesscommunicationdomain,hasimportantapplicationvalueandgooddevelopmentprospect.Keywords:wirelesscommunicationcontrol;AT89S52;nRF2401;serialcomm-unication山东科技大学学士学位论文目录III目录1概述..................................................................................................................................11.1单片机控制的无线数据传输的意义..................................................................11.2无线通信系统的现状及发展..............................................................................21.3本设计的内容及设计指标..................................................................................31.4设计的基础知识..................................................................................................32系统设计方案..................................................................................................................42.1设计方案选择和论证..........................................................................................42.1.1无线通信方式的比较和选择..................................................................42.1.2微控制器的比较和选择..........................................................................52.1.3无线收发芯片的比较和选择..................................................................62.1.4串行通信方式比较和选择.....................................................................72.2系统组成和功能概述..........................................................................................83系统硬件设计................................................................................................................103.1RS-232串行通信接口电路设计......................................................................103.2USB通信接口电路设计....................................................................................113.2.1设计思路................................................................................................123.2.2USB转接芯片的选择............................................................................123.2.3硬件电路设计........................................................................................143.2.4硬件驱动程序安装................................................................................153.3nRF2401射频模块电路设计............................................................................153.3.1芯片结构................................................................................................153.3.2引脚说明................................................................................................163.3.3主要特点................................................................................................183.3.4工作模式................................................................................................193.3.5器件配置................................................................................................203.3.6应用电路................................................................................................213.4外部数据存储器扩展电路设计........................................................................223.5单片机最小系统电路设计................................................................................263.5.1电源电路................................................................................................263.5.2时钟电路设计........................................................................................273.5.3复位电路的设计....................................................................................283.5.4下载线接口电路设计............................................................................283.6各功能模块的整合及实现................................................................................294系统软件设计..............................................................