基于FPGA的信号发生器设计论文摘要信号发生器是数字设备运行工作中必不可少的一部分，没有良好的信号源，最终就会导致系统不能够正常工作，更不必谈什么实现其它功能了。本次论文主要研究了基于FPGA的函数信号发生器的设计思路与软硬件实现。首先介绍了本次设计任务的总体设计方案，以及该方案中涉及的知识点，所使用的软件及硬件基本知识。在此基础上进行了硬件电路的设计，主要采用DDS（直接数字频率合成）方案，采用了Altera公司的低成本cycloneII系列FPGA的EP2C5QC8作为核心芯片，构建了外围的0832DA转换电路，以及1MHZ低通滤波电路。再次介绍系统软件的设计过程，给出了FPGA自底向上的设计思路，以及各个底层模块的设计原理与思路分析，最后介绍了相关软件的应用知识。最后一段介绍了论文的相关结论，进行仿真调试的过程。实现了设计任务的频率从100HZ到1MHZ可调，幅度从0.1V到5V可调的功能。系统的设计方案和设计过程具有参考和学习价值。关键词：信号发生器FPGAModelsimVerilog语言AbstractThesignalgeneratorisanessentialpartoftheworkofdigitalI基于FPGA的信号发生器设计论文equipmentoperation,withoutagoodsource,andultimatelywillcausethesystemtoworkproperly,nottotalkabouttheachievementofotherfeatures.ThisthesisstudiedthesoftwareandhardwaredesignoftheFPGA-basedSignalGenerator.Firstintroducedtheoveralldesignofthedesigntask,andknowledgeinvolvedintheprogram,usebasicsoftwareandhardwareknowledge.Onthisbasis,thehardwarecircuitdesign,usingDDS(DirectDigitalFrequencySynthesizer)program,usingAltera'slow-costcycloneIIFPGAseriesEP2C5QC8corechiptobuildaperipheral0832DAconversioncircuit,and1MHZlowpassfiltercircuit.Re-introducethesystemsoftwaredesignprocess,givenFPGAdesignideasfromthebottomup,aswellasthedesignprinciplesandideasofthebottommodule,andfinallyintroducedasoftwareapplicationknowledge.Thelastparagraphoftheconclusionsofthepaper,simulationdebuggingprocess.Designtaskfrequencyisadjustablefrom100HZto1MHZfunctionoftheadjustablerangefrom0.1Vto5V.Systemdesignanddesignprocesshasareferenceandlearningvalue.Keywords:Signalgenerator，FPGA，Modlesim，VerilogHDL目录摘要.................................................................................................................IABSTRACT...................................................................................................II目录..............................................................................................................III前言................................................................................................................11概述.............................................................................................................3II基于FPGA的信号发生器设计论文1.1FPGA简介............................................................................................31.2MODELSIM简介.....................................................................................81.3DDS基本原理介绍..............................................................................92设计方案...................................................................................................122.1总体设计思路.....................................................................................122.2方案论证.............................................................................................132.2.1方案一..........................................................................................132.2.2方案二.........................................................................................
