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STSTM32F779xx系列32位ARMMCU开发方案时间：2016-06-2110:07:15作者：ST来源：中电网ST公司的STM32F777xx,STM32F778Ax和STM32F779xx系列是基于工作频率高达216MHz的高性能ARM®Cortex®-M732位RISC核,集成多达2MB闪存,512KBSRAM,16KBTCMRAM,4KB备份SRAM和各种外设,主要用在马达驱动和工业控制,医疗电子,家用音频设备,可穿戴智能手表,PLC,逆变器和电路中断器,打印机和扫描仪,告警系统,视频连接和HVAC,移动应用和物联网(IoT).本文介绍了STM32F779xx系列主要特性,框图,评估板STM32F779I-EVAL主要特性,框图,电路图,材料清单和PCVB元件布局图.TheSTM32F777xx,STM32F778AxandSTM32F779xxdevicesarebasedonthehigh-performanceARM®Cortex®-M732-bitRISCcoreoperatingatupto216MHzfrequency.TheCortex®-M7corefeaturesafloatingpointunit(FPU)whichsupportsARM®double-precisionandsingle-precisiondata-processinginstructionsanddatatypes.ItalsoimplementsafullsetofDSPinstructionsandamemoryprotectionunit(MPU)whichenhancestheapplicationsecurity.TheSTM32F777xx,STM32F778AxandSTM32F779xxdevicesincorporatehigh-speedembeddedmemorieswithaFlashmemoryupto2Mbytes,512KbytesofSRAM(including128KbytesofDataTCMRAMforcriticalreal-timedata),16KbytesofinstructionTCMRAM(forcriticalreal-timeroutines),4KbytesofbackupSRAMavailableinthelowestpowermodes,andanextensiverangeofenhancedI/OsandperipheralsconnectedtotwoAPBbuses,twoAHBbuses,a32-bitmulti-AHBbusmatrixandamultilayerAXIinterconnectsupportinginternalandexternalmemoriesaccess.Allthedevicesofferthree12-bitADCs,twoDACs,alow-powerRTC,twelvegeneral-purpose16-bittimersincludingtwoPWMtimersformotorcontrol,twogeneral-purpose32-bittimers,atruerandomnumbergenerator(RNG),andacryptographicaccelerationcell.Theyalsofeaturestandardandadvancedcommunicationinterfaces.•UptofourI2Cs•SixSPIs,threeI2Ssinhalf-duplexmode.Toachieveaudioclassaccuracy,theI2SperipheralscanbeclockedviaadedicatedinternalaudioPLLorviaanexternalclocktoallowsynchronization.•FourUSARTsplusfourUARTs•AnUSBOTGfull-speedandaUSBOTGhigh-speedwithfull-speedcapability(withtheULPI)•ThreeCANs•TwoSAIserialaudiointerfaces•TwoSDMMChostinterfaces•Ethernetandcamerainterfaces•LCD-TFTdisplaycontroller•Chrom-ARTAccelerator™•SPDIFRXinterface•HDMI-CECAdvancedperipheralsincludetwoSDMMCinterfaces,aflexiblememorycontrol(FMC)interface,aQuad-SPIFlashmemoryinterface,acamerainterfaceforCMOSsensorsandacryptographicaccelerationcellTheSTM32F777xx,STM32F778AxandSTM32F779xxdevicesoperateinthe–40to+105℃temperaturerangefroma1.7to3.6Vpowersupply.DedicatedsupplyinputsforUSB(OTG_FSandOTG_HS)andSDMMC2(clock,commandand4-bitdata)areavailableonallthepackagesexceptLQFP100foragreaterpowersupplychoice.TheSTM32F777xx,STM32F778AxandSTM32F779xxdevicesofferdevicesin10packagesrangingfrom100pinsto216pins.Thesetofincludedperipheralschangeswiththedevicechosen.ThesefeaturesmaketheSTM32F777xx,STM32F778AxandSTM32F779xxmicrocontrollerssuitableforawiderangeofapplications:•Motordriveandapplicationcontrol•Medicalequipment•Industrialapplications:PLC,inverters,circuitbreakers•Printers,andscanners•Alarmsystems,videointercom,andHVAC•Homeaudioappliances•Mobileapplications,InternetofThings•Wearabledevices:smartwatches.AO-Electronics傲壹电子官网：中文网：系列主要特性:Core:ARM®32-bitCortex®-M7CPUwithDPFPU,ARTAccelerator™andL1-cache:16KbytesI/Dcache,allowing0-waitstateexecutionfromembeddedFlashandexternalmemories,upto216MHz,MPU,462DMIPS/2.14DMIPS/MHz(Dhrystone2.1),andDSPinstructions.MemoriesUpto2MbytesofFlashmemoryorganizedintotwobanksallowingread-while-writeSRAM:512Kbytes(including128KbytesofdataTCMRAMforcriticalreal-timedata)+16KbytesofinstructionTCMRAM(forcriticalreal-timeroutines)+4KbytesofbackupSRAMFlexibleexternalmemorycontrollerwithupto32-bitdatabus:SRAM,PSRAM,SDRAM/LPSDRSDRAM,NOR/NANDmemoriesDualmodeQuad-SPIGraphicsChrom-ARTAccelerator™(DMA2D),graphicalhardwareacceleratorenablingenhancedgraphicaluserinterfaceHardwareJPEGcodecLCD-TFTcontrollersupportinguptoXGAresolutionMIPI®DSIhostcontrollersupportingupto720p30HzresolutionClock,resetandsupplymanagement1.7Vto3.6VapplicationsupplyandI/OsPOR,PDR,PVDandBORDedicatedUSBpower4-to-26MHzcrystaloscillatorInternal16MHzfactory-trimmedRC(1%accuracy)32kHzoscillatorforRTCwithcalibrationInternal32kHzRCwithcalibrationLow-powerSleep,StopandStandbymodesVBATsupplyforRTC,32×32bitbackupregisters+4KbytesbackupSRAM3×12-bit,2.4MSPSADC:upto24channelsDigitalfiltersforsigmadeltamodulator(DFSDM),8channels/4filters2×12-bitD/AconvertersGeneral-purposeDMA:16-streamDMAcontrollerwithFIFOsandburstsupportUpto18timers:uptothirteen16-bit(1xlow-power16-bittimeravailableinStopmode)andtwo32-bittimers,eachwithupto4IC/OC/PWMorpulsecounterandquadrature(incremental)encoderinput.All15timersrunningupto216MHz.2xwatchdogs,SysTicktimerDebugmodeSWD&JTAGinterfacesCortex®-M7TraceMacrocell™Upto168I/OportswithinterruptcapabilityUpto164fastI/Osupto108MHzUpto1665V-tolerantI/OsUpto28communicationinterfacesUpto4I2Cinterfaces(SMBus/PMBus)Upto4USARTs/4UARTs(12.5Mbit/s,ISO7816interface,LIN,IrDA,modemcontrol)Upto6SPIs(upto54Mbit/s),3withmuxedsimplexI2Sforaudio2xSAIs(serialaudiointerface)3×CANs(2.0BActive)and2xSDMMCsSPDIFRXinterfaceHDMI-CECMDIOslaveinterfaceAdvancedconnectivityUSB2.0full-speeddevice/host/OTGcontrollerwithon-chipPHY