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1、STSTM32F407xx系列32位MCU开发方案关键字：工业控制,马达驱动,PLC,逆变器;消费电子,HVAC,家庭音响设备ST公司的STM32F407xx系列产品是基于ARM®Cortex™-M4内核的32位RISCMCU,工作频率高达168MHz.Cortex-M4内核具有单精度浮点单元(FPU),支持所有的ARM单精度数据处理指令和数据类型,还能实现所有的DSP指令集和存储器保护单元(MPU),增强了应用保密性,主要用在马达驱动和应用控制,医疗设备,工业设备如PLC,逆变器,电路中断器,打印机和扫描仪以及消费类电子如HVAC,家庭音响设备等.本文介
2、绍了STM32F407xx系列主要特性,框图,以及STM3240G-EVAL评估板主要特性,框图,电路图,材料清单和PCB元件布局图.TheSTM32F405xxandSTM32F407xxfamilyisbasedonthehigh-performanceARM®Cortex™-M432-bitRISCcoreoperatingatafrequencyofupto168MHz.TheCortex-M4corefeaturesaFloatingpointunit(FPU)singleprecisionwhichsupportsallARMsingle-pr
3、ecisiondata-processinginstructionsanddatatypes.ItalsoimplementsafullsetofDSPinstructionsandamemoryprotectionunit(MPU)whichenhancesapplicationsecurity.TheCortex-M4corewithFPUwillbereferredtoasCortex-M4Fthroughoutthisdocument. TheSTM32F405xxandSTM32F407xxfamilyincorporateshigh-speed
4、embeddedmemories(Flashmemoryupto1Mbyte,upto192KbytesofSRAM),upto4KbytesofbackupSRAM,andanextensiverangeofenhancedI/OsandperipheralsconnectedtotwoAPBbuses,threeAHBbusesanda32-bitmulti-AHBbusmatrix.Alldevicesofferthree12-bitADCs,twoDACs,alow-powerRTC,twelvegeneral-purpose16-bittimer
5、sincludingtwoPWMtimersformotorcontrol,twogeneral-purpose32-bittimers.atruerandomnumbergenerator(RNG). STM32F407xx系列主要特性: Theyalsofeaturestandardandadvancedcommunicationinterfaces. •UptothreeI2Cs•ThreeSPIs,twoI2Ssfullduplex.Toachieveaudioclassaccuracy,theI2Speripheralscanbeclockedv
6、iaadedicatedinternalaudioPLLorviaanexternalclocktoallowsynchronization.•FourUSARTsplustwoUARTs•AnUSBOTGfull-speedandaUSBOTGhigh-speedwithfull-speedcapability(withtheULPI), •TwoCANs•AnSDIO/MMCinterface•EthernetandthecamerainterfaceavailableonSTM32F407xxdevicesonly.Newadvancedperiph
7、eralsincludeanSDIO,anenhancedflexiblestaticmemorycontrol(FSMC)interface(fordevicesofferedinpackagesof100pinsandmore),acamerainterfaceforCMOSsensors.RefertoTable2:STM32F405xxandSTM32F407xx:featuresandperipheralcountsforthelistofperipheralsavailableoneachpartnumber. TheSTM32F405xxan
8、dSTM32F407xxfamilyoperatesinthe–4
