,andsatisfythetopicinthefunctionindexsignputforward。Requestaccordingtothetopic,wetakeamachineandtheFPGAsasthecore,assistingwiththeemulationelectriccircuitofthenecessity,designingasynthesizethetechnique(DDS)accordingtothedirectnumericalfrequencyarbitrarilyaformoccurrencemachine。
Thatsystemmainlyfromacomposingofsixfunc ,thefrequencycontrol,thefewmoldconversion,therangecontrol,LCDmanifestation,spreadpoweroutputmoldpiece。
Amongthem,aformwatchisbornandthefrequencycontrolispassthechangeaRAMofamachineisofaformformanddeliverthefrequencycontrolwordtowardFPGAtocarryout;thefewmoldconversionadoptionDACO8realization;themanifestationadoptionLCDmanifestationmoldpiece;thusgetrequestarbitrarilyaformoutput。
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