基于A2F200設計的智能混合信號FPGA開發(fā)技術SmartFusion器件是基于愛特的快閃技術而開發(fā)，為需要真正的單芯片系統(tǒng)的硬件和嵌入式系統(tǒng)設計師提供比傳統(tǒng)專屬功能微控制器更大的靈活性，而成本又比現有使用軟核處理器的FPGA低得多。SmartFusion是行業(yè)唯一集成FPGA、ARM?Cortex?-M3處理器硬核，以及可編程模擬資源于一體的器件，能夠實現完全可定制系統(tǒng)設計和IP保護能力，而且易于使用。主要優(yōu)點:完全可定制系統(tǒng)設計能力讓設計人員能夠使用真正所需的功能特性去開發(fā)產品實現創(chuàng)新性和差異性，提高競爭力利用片上FPGA實現最后一分鐘的功能修改利用應用可編程(in-applicationprogramming)進行現場升級，使設計符合最新要求可為FGPA架構內的個別算法試驗硬件加速知識產權(IP)保護能力完整的單芯片（SoC）方案提供內在快閃FPGAIP保護能力微控制器和FPGA接口沒有暴露在外啟動時無須加載位流(bit-stream)，免除安全風險安全系統(tǒng)內編程(ISP)帶有通過JTAG提供的128位先進加密標準FlashLock?防止反向讀取FPGA內容利用客戶可編程器件密鑰避免器件過建(overbuilding)易用性提高生產率只須采用一個平臺，即可構建整個產品系列同時為FPGA和嵌入式設計人員而設的集成設計環(huán)境利用簡單的GUI工具，即可對復雜的可編程模擬資源進行配置提供來自Keil?、IARSystems?和GNU業(yè)界領先的編譯和調試工具Micrium提供實時操作系統(tǒng)(RTOS)和中間件支持SmartFusion

圖1。SmartFusion方框圖圖2。SmartFusion系統(tǒng)架構圖SmartFusion系列參數表：SmartFusion系列的應用：馬達控制：SmartFusionintelligentmixedsignalFPGAsareuniquelysuitedtoactivemotorcontrolforpermanentmagnetmotors,servomotors,seriesmotors,separatelyexcitedmotorsandalternatingcurrentinductionmotors.ASmartFusionFPGAcanactivelymanagemultipleelectricmotors,includingstartandstop,controlofrotationaldirection,speedandtorque,protectionagainstmotoroverloadsorfaultsandactivecontrolusingclosedloopperformancealgorithms.SmartFusionon-chipresourcesallowyoutomonitormotorperformanceinrealtimewithorwithoutdedicatedencoders,applyingcorrectivecontrolsignalstomaintaincommandeddirection,speedandtorqueanddeliverprecisemotorpositioncontrol.Actel’smotorcontrolpartner,PowerandControlDesign,Inc.,hasproducedaSmartFusionMotorControlDevelopmentKitthatenablesdemonstrationandbenchtopdevelopmentofyourworld-classpermanentmagnetmotorcontrolproducts.Thekitincludesfivereferencedesignswithsourcefiles:?TrapezoidalusingHalleffectsensorfeedback?SinusoidalusingHalleffectsensorfeedback?Sinusoidalwithencoderfeedback?Sensorlesstrapezoidalwithback-EMFfeedback?Ethernetinteractivecontrolofmotors圖3。馬達控制開發(fā)套件工業(yè)自動化：TherangeofperipheralsSmartFusionoffersfortheCortex-M3processorandtheflexibilityofitsFPGAfabricmakethedeviceidealforindustrialautomation.TheSmartFusionDevelopmentKitsupportsEthernet,EtherCAT,CAN,UART,I2CandSPIhardware,whilefirmwarecanbeusedforvariousotherinterfacestandardssuchasModbus?andPROFIBUSforindustrialnetworking.Withtheuseoftheprogrammableanalogforsensingandanalogoutputs,SmartFusioncanalsobeusedinindustrialcontrolapplications,includinggateways,sensing,actuatorsandI/Odevices.Thelistbelowdescribeshowthevarioussectionsofthedevicecouldbeusedinindustrialautomation.MicrocontrollerSubsystem?ARMCortex-M3runningFieldbusprotocolstack?EthernetMAC–standardprotocolsFPGAFabric?MultipleRS485capableUARTs-PROFIBUS,Modbus,WorldFIP,P-NET?HighSpeedManchesterEncoding/Decoding?CANAnalog?ADCforsensing?DACforexcitation圖4。工業(yè)自動化應用框圖ActelSmartFusion?開發(fā)工具套件ActelSmartFusion?開發(fā)工具套件備有功能齊全的開發(fā)電路板，讓用戶可以試用世界唯一帶有ARM?Cortex?-M3硬核處理器和可編程模擬資源的FPGA器件。該器件包含片上閃存和片上SRAM存儲器，以及附加的片外存儲器。這塊電路板能夠通過以太網和HyperTerminal進行通信。它還包括LED、開關、OLED，和包括有電壓軌監(jiān)控、電流POT、溫度二極管及采用有源雙極預定標器(ABPS)的電壓掃描等豐富的模擬測試功能。聯(lián)網接口包括以太網PHY、EtherCAT、CAN、UART和RS485。TheboardsupportsaSmartFusiondeviceinanFG484package.ToenabletheMSS,analog,andevaluationoffeatures,theboardincludesthefollowing:?Ethernet,EtherCATandUSB-to-UARTinterfaceforcommunicationwithEthernetandUARTperipheralsoftheSmartFusionMSS?SRAM,parallelflash,SPIflashandEEPROMthatinterfacewithEMC,SPI,andI2CperipheralsoftheSmartFusionMSS?Digital-to-analogconverter(DAC)thatinterfaceseithertoSPIport0OrSPIport1oftheSmartFusionMSS?Organiclight-emittingdiode(OLED)thatinterfaceswitheitherSPIorI2CperipheralsoftheSmartFusionFPGAMSS?I2Cinterface,temperaturemonitoring?Mixed-signalheaderfordaughtercardinterfacing?RVIheaderforapplicationprogramminganddebugfromeitherKeil?ULINK?orIARJ-link?TheboardincludesaFlashPro4programmingheadertoenableprogramminganddebuggingfromActeldesigntoolsFlashPointandSoftConsole.TheRoHS-compliantSmartFusion?DevelopmentKit(A2F-DEV-KIT)enablesdesignerstodevelopapplicationsthatinvolveoneormoreofthefollowing:?Microcontrollerapplications?Real-timeoperatingsystem(RTOS)/OSdevelopment?EmbeddedARM?Cortex?-M3–basedsystems?Motorcontrol?Systemmanagement?Powersequencing,trimming,andmanagement?Touchscreendisplaycontrol?Audioprocessing?FieldBus?demonstrator?EtherCAT??IndustrialnetworkTheboardalsoprovidesastandard100-pinmixed-signalheaderforinterfacingtotheanalogpins.Thisprovidesaccessforplugginginadaughterboardwithamixed-signalinterface.圖5。ActelSmartFusion?開發(fā)板外形圖ActelSmartFusion?開發(fā)板主要元件列表：圖6。SmartFusion