评估开发方案

KeilSTM32F407评估开发方案Keil企业旳MCBSTM32F400评估板采用ST企业旳STM32F407IG器件,它是基于168MHzARMCortex™-M4旳MCU,176引脚BGA封装,具有1MBFlash&192KBRAM,外接存储器8MBNORFlash,512MBNANDFlash,2MBSRAM,8KBI2CEEPROM,采用电阻触摸屏旳2.4吋彩色QVGATFTLCD,10/100以太网端口,重要用在马达驱动和应用控制,医疗设备,工业应用如PLC,逆变器,电路中断器,打印机和扫描仪,告警系统,视频互连,HVAC以及家庭音响设备.本文简介了STM32F405xx和STM32F407xx重要特性,方框图,MCBSTM32F400评估板重要特性,技术指标,方框图以及电路图和PCB元件布局图.STM32F405xx/STM32F407xx:ARMCortex-M432bMCU+FPU,210DMIPS,upto1MBFlash/192+4KBRAM,USBOTGHS/FS,Ethernet,17TIMs,3ADCs,15erfaces&cameraTheSTM32F405xxandSTM32F407xxfamilyisbasedonthehigh-performanceARM®Cortex™-M432-bitRISCcoreoperatingatafrequencyofupto168MHz.TheCortex-M4corefeaturesaFloatingpointunit(FPU)singleprecisionwhichsupportsallARMsingleprecisiondata-processinginstructionsanddatatypes.ItalsoimplementsafullsetofDSPinstructionsandamemoryprotectionunit(MPU)whichenhancesapplicationsecurity.TheCortex-M4corewithFPUwillbereferredtoasCortex-M4Fthroughoutthisdocument.TheSTM32F405xxandSTM32F407xxfamilyincorporateshigh-speedembeddedmemories(Flashmemoryupto1Mbyte,upto192KbytesofSRAM),upto4KbytesofbackupSRAM,andanextensiverangeofenhancedI/OsandperipheralsconnectedtotwoAPBbuses,twoAHBbusesanda32-bitmulti-AHBbusmatrix.Alldevicesofferthree12-bitADCs,twoDACs,alow-powerRTC,twelvegeneral-purpose16-bittimersincludingtwoPWMtimersformotorcontrol,twogeneral-purpose32-bittimers.atruerandomnumbergenerator(RNG).Theyalsofeaturestandardandadvancedcommunicationinterfaces.●UptothreeI2Cs●ThreeSPIs,twoI2Ssfullduplex.Toachieveaudioclassaccuracy,theI2SperipheralscanbeclockedviaadedicatedinternalaudioPLLorviaanexternalclocktoallowsynchronization.●FourUSARTsplustwoUARTs●AnUSBOTGfull-speedandaUSBOTGhigh-speedwithfull-speedcapability(withtheULPI),●TwoCANs●AnSDIO/MMCinterface●EthernetandthecamerainterfaceavailableonSTM32F407xxdevicesonly.NewadvancedperipheralsincludeanSDIO,anenhancedflexiblestaticmemorycontrol(FSMC)interface(fordevicesofferedinpackagesof100pinsandmore),acamerainterfaceforCMOSsensors.TheSTM32F405xxandSTM32F407xxfamilyoperatesinthe–40to+105°Ctemperaturerangefroma1.8to3.6Vpowersupply.Thesupplyvoltagecandropto1.7Vwhenthedeviceoperatesinthe0to70°CtemperaturerangeandPDRisdisabled.Acomprehensivesetofpower-savingmodeallowsthedesignoflow-powerapplications.TheSTM32F405xxandSTM32F407xxfamilyoffersdevicesinfourpackagesrangingfrom64pinsto176pins.Thesetofincludedperipheralschangeswiththedevicechosen.ThesefeaturesmaketheSTM32F405xxandSTM32F407xxmicrocontrollerfamilysuitableforawiderangeofapplications:STM32F405xx和STM32F407xx重要应用:●Motordriveandapplicationcontrol●Medicalequipment●Industrialapplications:PLC,inverters,circuitbreakers●Printers,andscanners●Alarmsystems,videointercom,andHVAC●HomeaudioappliancesSTM32F405xx和STM32F407xx重要特性:■Core:ARM32-bitCortex™-M4CPUwithFPU,Adaptivereal-timeaccelerator(ARTAccelerator™)allowing0-waitstateexecutionfromFlashmemory,frequencyupto168MHz,memoryprotectionunit,210DMIPS/1.25DMIPS/MHz(Dhrystone2.1),andDSPInstructions■MemoriesUpto1MbyteofFlashmemory–Upto192+4KbytesofSRAMincluding64-KbyteofCCM(corecoupledmemory)dataRAM–FlexiblestaticmemorycontrollersupportingCompactFlash,SRAM,PSRAM,NORandNANDmemories■LCDparallelinterface,8080/6800modes■Clock,resetandsupplymanagement–1.8Vto3.6VapplicationsupplyandI/Os–POR,PDR,PVDandBOR–4-to-26MHzcrystaloscillator–Internal16MHzfactory-trimmedRC(1%accuracy)–32kHzoscillatorforRTCwithcalibration–Internal32kHzRCwithcalibration●Lowpower–Sleep,StopandStandbymodes–VBATsupplyforRTC,20×32bitbackupregisters+optional4KBbackupSRAM■3×12-bit,2.4MSPSA/Dconverters:upto24channelsand7.2MSPSintripleinterleavedmode■2×12-bitD/Aconverters■General-purposeDMA:16-streamDMAcontrollerwithFIFOsandburstsupport■Upto17timers:uptotwelve16-bitandtwo32-bittimersupto168MHz,eachwithupto4IC/OC/PWMorpulsecounterandquadrature(incremental)encoderinput■Debugmode–Serialwiredebug(SWD)&JTAGinterfaces–Cortex-M4EmbeddedTraceMacrocell™1.TheWLCSP90packagewillsoonbeavailable.■Upto140I/Oportswithinterruptcapability–Upto136fastI/Osupto84MHz–Upto1385V-tolerantI/Os■Upto15communicationinterfaces–Upto3×I2Cinterfaces(SMBus/PMBus)–Upto4USARTs/2UARTs(10.5Mbit/s,ISO7816interface,LIN,IrDA,modemcontrol)–Upto3SPIs(37.5Mbits/s),2withmuxedfull-duplexI2StoachieveaudioclassaccuracyviainternalaudioPLLorexternalclock–2×CANinterfaces(2.0BActive)–SDIOinterface■Advancedconnectivity–USB2.0full-speeddevice/host/OTGcontrollerwithon-chipPHY–USB2.0high-speed/full-speeddevice/host/OTGcontrollerwithdedicatedDMA,on-chipfull-speedPHYandULPI–10/100EthernetMACwithdedicatedDMA:supportsIEEE1588v2hardware,MII/RMII■8-to14-bitparallelcamerainterfaceupto54Mbytes/s■Truerandomnumbergenerator■CRCcalculationunit■96-bituniqueID■RTC:subsecondaccuracy,hardwarecalendar图1.STM32F405xx和STM32F407xx方框图MCBSTM32F400评估板TheMCBSTM32F400EvaluationBoardshipswiththeSTM32F407IGdevicethatisasupersetofseveralotherdevicevariantsoftheSTM32F407xmicrocontrollerseries.TheMCBSTM32F200andMCBSTM32F400boardscontainallthehardwarecomponentsrequiredinasingle-chipSTM32xsystem.TheKeilMCBSTM32F400EvaluationBoardenablesyoutocreateandtestworkingprogramsbasedontheSTMicroelectronicsSTM32F4xxseriesofARMCortex™-M4processor-baseddevices.MCBSTM32F400评估板重要特性:168MHzSTM32F407IGARMCortex™-M4processor-basedMCUin176-pinBGAOn-ChipMemory:1MBFlash&192KBRAMExternalMemory:8MBNORFlash,512MBNANDFlash,2MBSRAM,8KBI2CEEPROMwithNFCinterface2.4inchColorQVGATFTLCDwithresistivetouchscreen10/100EthernetPortUSB2.0FullSpeed-USB,USB-OTG,&USBHostUSB2.0HighSpeed-USB,USB-OTG,&USBHost1CANInterfaceSerial/UARTPortMicroSDCardInterface5-positionJoystick3-axisdigitalAccelerometer3-axisdigitalGyroscopeAnalogVoltageControlforADCInput(potentiometer)AudioCODECwithLine-In/OutandSpeaker/MicrophoneDigitalMicrophoneDigitalVGACameraPush-ButtonsforReset,Wakeup,TamperandUser8LEDsdirectlyconnectedtoportpinsPowerSupplyvia:HighSpeedandFullSpeedUSB(micro)connectorsPowerjack(8V-12V)withVoltageRegulatorcapabletosupplybothUSBhostinterfaces(500mAeach)DebugInterfaceConnectors20pinJTAG(0.1inchconnector)10pinCortexdebug(0.05inchconnector)20-pinCortexdebug+ETMTrace(0.05inchconnector)图2.MCBSTM32F400评估板外形图NoteTheMCBSTM32F200andMCBSTM32F400usethesamebaseboardandon-chipperipherals.OnlytheMCUisdifferentbetweenthetwoboards.MCBSTM32F400评估板技术指标:FeatureMCBSTM32F400BoardMCUVendorSTMCUSTM32F407IGXTAL25MHzARMProcessorCortex-M4MCUClock168MHzPrototypingAreaDimensions(inches)4.875x6.69Dimensions(mm)124x170MemoryExternalRAM2MExternalFlash8M/512MI/OPushButtons4I/OPortLEDs8AnalogInput(Potentiometer)AnalogOutput(Speaker)SerialPorts3CANPorts2USBDeviceInterfaceUSBHost/OTGEthernetInterface10/100SDCardInterfaceLCDQVGACameraDebugInterfaceJTAGInterfaceSWD