Keil-STM32F407评估开发方案.docx

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1、KeilSTM32F407砰估开发方案Keil公司的MCBSTM32F400评估板采纳ST公司的STM32F407IG器件，它是基于168MHZARMCor*ex™-M4的MCU,176弓脚BGA封装，具有IKBFlash&192KBRAM,外接存储器8MBNORFlash,512KBNANDFlash,2MBSRAM,8KBI2CEEPROM,采纳电阻触摸班的2.4时彩色QvGATFT1.CD,10/100以太网靠口，主要用在马达驱动和应用限制，医疗设备，工亚应用如P1.C,逆变雄，电窗中断器，打印机和扫描仪，告警系统,视筑互连，HVAC以及家庭音响设备.本文介用了STM

2、32F405xx和STM32F407XX主要将性，方根图，MCBSTM32F400评估板主要特性，技术指标，方据图以及电路图和PCB元件布局.STM32F405xx/STM32F407xx:ARMCOrteX-M432bMCU+FPU,210DMIPS,uptoIMBFIaSh/192+4KBRAN,USBOTGHS/FS,Ethernet,17TIMs,3ADCs,15conun.interfaces&CameraTheSTM32F405xxandSTM32F407xxfamilyisbasedonthehigh-performanceARMfiregzCortexitrade;-M

3、432-bitRISCcoreoperatingatafrequencyofupto168MHz.TheCortex-M4corefeaturesaFloatingpointunit(FPUsingleprecisionwhichsupportsallAR!singleprecisiondata-processinginstructionsanddatatypes.ItalsoimplementsafullsetofDSPinstructionsandamemoryprotectionunit(MPU)whichenhancesapplicationsecurity.TheCorteX-M4c

4、orewithFPUwillbereferredtoasCOrteX-M4Fthroughoutthisdocument-TheSTM32F4C5xxandSTM32F407familyincorporateshigh-speedembeddedmemories(Flashmemoryupto1Mbyte,upto192KbytesofSRAM),upto4KbytesofbackupSRAMrandanextensiverangeofenhanced1/0$andperipheralsconnectedtotwoAPBbusesztxoAHBbusesanda32-bitmulti-AHBb

5、usmatrix.Alldevicesofferthree12-bitADCs,twoDACs,alow-powerRTC,twelvegeneral-purpose16-bittimersincludingtwoPWMtimersformotorcontrol/twogenera!purpose32-bittimers.atruerandomnumbergenerator(RNG).Theyalsofeaturestandardandadvancedcommunicationinterfaces.eUptothreeI2CsThreeSPIsrtwoI2Ssfullduplex.Toachi

6、eveaudioclassaccuracytheI2SperipheralscanbeclockedviaadedicatedinternalaudioP1.1.orviaanexternalclocktoallowSynchronization.FourUSARTsplustwoUARTsAnUSBOTGfull-speedandaUSBOTGhigh-speedwithfull-speedcapability(withtheU1.PI),TwoCANsAnSD0MMCinterface*EthernetandthecamerainterfaceavailableonSTM32F407xde

7、vicesonly.NewadvancedperipheralsincludeanSDIOranenhancedflexiblestaticmemorycontrol(FSMC)interface(fordevicesofferedinpackagesof100pinsandmore),acamerainterfaceforCMOSsensors.TheSTM32F405andSTM32F407familyoperatesinthe4njash;40to+105°Ctemperaturerangefroma1.8to36vpowersupply.Thesupplyvoltagecand

8、ropto1.7vwhenthedeviceoperatesinthe0to70Sdeg;CtemperaturerangeandPDRisdisabled.Acomprehensivesetofpower-savingmodeallowsthedesignoflow-powerapplications.TheSTM32F405xxandST132F407xxfamilyoffersdevicesinfourpackagesrangingfrom64pinsto176pins.Thesetofincludedperipheralschangeswiththedevicechosen.ThesefeaturesmaketheSm32F405xxandSTM32F407xmicrocontrollerfamilysuitableforawiderangeofappllcations：STM32F405xxftSTM32F40,J主要取用：Motordriveandapplicationcontrol*MediCalequipment*Industrialapplications:P1.C/