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TI新型DSP的解决方案关键字：tms320dm642,定点dsp,超长指令字Keywords：tms320dm642，fixed-pointDSP，very-long-instruction-word(VLIW)DM642评估模块（EVM）是一种基于TMS320C642DSP的低成本高性能的视频和影像开发平台，旨在迅速实现多通道，多种格式数码相机和其他面向未来应用的应用开发套件。基本特点：Tms320dm642是TI公司C6000系列DSP中最新的定点DSP，其核心是C6416型高性能数字信号处理器，具有极强的处理性能，高度的灵活性和可编程性，同时外围集成了非常完整的音频、视频和网络通信等设备及接口，特别适用于机器视觉、医学成像、网络视频监控、数字广播以及基于数字视频/图像处理的消费类电子产品等高速DSP应用领域。方案特点：DevelopedinconjunctionwithSpectrumDigital,thisPCIformfactorEVMincludesthenecessarycomponentstoenableyouto:StartapplicationsoftwaredevelopmentimmediatelyUnderstandDSPfunctionalityforvideoexpertsBuildvideo,audio&internetstreamingfunctionalityintoexistingdesignsSimplifyoverallsystemdesignDifferentiateyourproductwithcuttingedgesoftwareDesignforflexibilitytorespondtoevolvingstandardsSupportedbyawardwinningeXpressDSPhosttoolsandtargetsoftware,usershavetheuniqueabilitytoquicklyandeasilyintegrateeXpressDSP-compliantalgorithmsfromoveronehundredTIthirdpartiesintotheincludedstarterwaretoacceleratecompletionofyourevaluationanddevelopmentofdigitalmediasolutions.DM642EVMHardwarefeatures:DSP&Memory720MhzDM642DSP4MBytesFlash,32MBof133MHzSDRAMand256kbitI2CEEPROMVideoCapture3FemaleRCAconnectorsforcompositevideoinput(NTSC,PAL)1FemaleS-Videoconnectorforcomponent(Y-C)videoinput(NTSC,PAL)VideoDisplayTVP5150/5146VideoDecoder3FemaleRCAconnectors(1forcompositevideooutput,and3forRGBoutputorHDTV)1FemaleS-VideoconnectorforRGBmonitoroutput1Female15-pinVGAconnectorforRGBmonitoroutputOn-ScreenDisplaysupport(OSDFPGA)Audio2ChannelLineIn(stereo),8kHzto96kHzsamplingrate2ChannelLineOut(stereo)1MicrophoneInput(mono)ConnectivityCanbeusedasaPCIplug-incardorstand-alonewithanexternalpowersupplybrick(+5V)10BASE-Tor100Base-TXusingsingleRJ-45connectorDualUARTinterfaceDaughtercardinterfaceforvideoportandmemorybusexpansion参考原理图：原理图1原理图2原理图3原理图4