【導(dǎo)讀】隨著信號發(fā)生器的發(fā)展，它在電子測試、電子設(shè)計(jì)、模擬仿真、通信工程中，工作中的效率，在電子技術(shù)和信號仿真應(yīng)用中已發(fā)揮了巨大的作用。紹了基于TMS320VC5416DSP的信號發(fā)生器的設(shè)計(jì)。應(yīng)用廣泛等特點(diǎn)。該系統(tǒng)的核心芯片TMS320VC5416DSP是TI公司生產(chǎn)的16位定點(diǎn)處理芯片，它有運(yùn)算速度快、具有可編程特性、接口靈活和外圍電路豐富等特點(diǎn)。通過軟件調(diào)試后，所要求的波形都能按要求實(shí)現(xiàn)。由于設(shè)計(jì)的時(shí)間短等原因，本次設(shè)計(jì)只是原理性的設(shè)計(jì)，要達(dá)到實(shí)用，還有許多的工作要做。在設(shè)計(jì)中還有許多不足之處，需要進(jìn)一步改進(jìn)。

　　

【正文】 elopment Environment(IDE)an open and standardized target operating systeman algorithm interoperability standardthirdparty access,to allow enhancementsA software model based on a standard,universally applicable environment,can give engineers the freedom to invent and to move products from concept to market more article describes the concepts and technology behind such a framework,along with its overall benefits to DSP engineers. is the Critical Path to Product DifferentiationHardware innovation has fueled DSP growth,paced not only by Moore’s Law,but also by superior architectures that provide:unprecedented performanceflexibilitylow power consumption low costperMIP 31higher onchip integrationThese dramatic advances present software developers with a challenge,because DSP software innovation has historically lagged behind processor is no Moore’s Law for hardware bees increasingly powerful and consumes less power at lower cost,the key differentiation between DSP vendors and their products is how effectively and efficiently product engineers can design and develop new or enhanced DSPbased software applications.DSP application requirements are being more plex,and programmers must create these applications quickly from concept to achieve this goal,modularity and reuse are being the strategyofchoice for the DSP software industry.No longer are DSP vendors scoring design wins based on silicon DSP sales professionals,the typical sales pitch has evolved from an 80% hardware,20% software solution,to a solution that still requires hardware capability and provides an equally important set of development tools that can substantially reduce the time needed to produce application software. are ImportantA prehensive standardsbased software development environment allows an engineer to fully utilized the realtime processing power of digital signal an environment should include:tandards for application interoperability at the algorithm level scalable realtime operating systempen integrated development toolseusable modular software and plugin tools from well supported works of thirdparty developers.The purpose of bringing these four ponents together is to:nable development to begin quicklyllow engineers to use optimized thirdparty software 32horten the time to market for DSPbased productThe availability of standardsbased tools and thirdparty software will ease the development and integration burden placed on DSP programmers,allowing them valuable time and resource to invest in creating innovative applications. for DSP Algorithms to InteroperateThe DSP market has classically suffered from a lack of standardization in software algorithms,crating limited modularity and limited lack of programming interface standards has forced DSP design engineers to reuse code that programmers never intended for reuse,in an attempt to salvage existing algorithm approach is sometimes ineffective,requiring valuable resources to reengineer poorly documented code. Because programmers monly provide algorithms in the form of object code and not source code,it can be difficult or impossible for system integrators to know what assumptions particular algorithms have made about the underlying hardware in the deployed product.Standardizing DSP algorithms reduces many of these unknowns and increases developers’ confidence in thirdparty standard,such as the express DSP algorithm interoperability standard for TMS320 DSP form Texas Instruments,enables engineers to easily integrate modular,reusable,multifunction applications into application programs by developers of all experience engineers can solve DSP challenges with far less effort than without these standards,they can focus their resources on adding real value and market differentiating features. Realtime Operating SystemA realtime operating system provides the basic runtime system services needed for all DSP operating system 33ponents are analogous to the wiring and plumbing that make up the fundamental infrastructure of a operating system should provide:data bufferingmemory handlinginterrupt handlingservices for gathering statisticsscheduling eventsdata loggingTo meet the needs of DSP applications,a realtime operating system shoule have:minimal runtime overheada small code footprintinteroperable tools and application supportrealtime performance monitoringenhanced manufacturing test and field diagnosticsIf engineers can provide the operating system with standard data capture,statistics,and eventlogging facilities instruments,then DSP programmers can design their applications to use a standard DSP kernel with which to probe,trace,and monitor during realtime facilities such as these,which are already mon in the micro controller and microprocessor world,lay the groundwork for a vide variety of thirdparty tools,including:dynamic 3rdparty application pluginsdynamic debuggersfield diagnostics toolsmanufacturing tests DSP/BIOSThe DSP/BIOS from Texas Instruments provides a set of kernel 34functions that collect information during application execution ,using TI’s Realtime Data Exchange (RTDX) emulation DSP target application invokes RTDX services by embedded calls within tis program threads and munication drivers that manage the realtime data information collected during realtime execution allows engineers to find and fix timing problems during the final project integration phase,without halting the also allows programmers to monitor DSP resource utilization,resulting in more efficient,higher performance code. Integrated Development EnvironmentThe third leg of an effective DSP tools platform is a set of unified host and target tools in a single open development tools al