dsp与计算机的异步串行通信专业课程设计论文.doc

dsp与计算机的异步串行通信专业课程设计论文DSP与计算机的异步串行通信摘要进入21世纪之后，数字化浪潮正在席卷全球，数字信号处理器DSP（DigitalSignalProcessor）正是这场数字化革命的核心，无论在其应用的广度还是深度方面，都在以前所未有的速度向前发展。数字信号处理是利用计算机或专用处理设备，以数字的形式对信号进行分析、采集、合成、变换、滤波、估算、压缩、识别等加工处理，以便提取有用的信息并进行有效的传输与应用。本文提供了解决DSP与计算机异步串行通信的软硬件解决方案。采用TI公司的通用异步接收发送设备UART芯片完成数字信号处理器DSP与PC机之间的串行通信,可以避免常规的对DSP的多通道缓冲串口MCBSP复杂的软件编程模拟,不仅编程简单,传输能力强,而且实时性好,可靠性高。文中介绍了一种UART芯片TL16C550,并给出了它与TMS320VC5402连接的硬件电路以及软件编程方法。关键词：异步串口通信；DSP；TL16C550；TMS320VC5402SERIALCOMMUNICATIONBETWEENDSPANDCOMPUTERABSTRACTAfterenteringthe21stcentury,thedigitalizationtideissweepingtheglobe,DigitalSignalProcessor(DSPisthecoreoftheDigitalrevolution,nomatterintheapplicationofbreadthordepthisstillatanunprecedentedrateofforwarddevelopment.Digitalsignalprocessingistousecomputerorspecialtreatmentequipment,indigitalformonsignalisanalyzed,collection,synthesis,transform,filteringandestimation,compression,identificationprocessing,inordertoextractusefulinformationandeffectivetransmissionandapplications.ThispaperprovidesUARTforasolutiontocommunicationbetweenDSPandPC.TheserialcommunicationbetweenDSPandpersonalcomputercanberealizedbyusingUARTCMOSchipofTexasInstrumentsInc.,whichcanavoidwritingthecomplicatedsoftwareroutinefortheMcBSPofDSP,andhastheadvantagesofsimpleprogramminghightransmissioncapability,goodreliabilityandrealtimecapability.Inthispaper,weintroducebrieflyakindofUARTCOMSchipTL16C550andprovidethehardwarecircuitbetweenTL16C550andTMS320VC5402andthewayhowtoprogramit.Keywords:SerialCommunication;DSP;TL16C550;TMS320VC5402目录1概述…………………………………………………………………………………….……12设计总体方案………………………………………………………………………….…....23设计详细原理…………………………………….………………..……..…......................33.1TL16C550简介………………………………………………………………………...33.1.1TL16C550的特点………………………………………………………………33.1.2TL16C550的引脚功能…………………………………………………………33.1.3T