STSTMFxx系列位ARMMCU开发方案.docx

STSTMFxx系列位ARMMCU开发方案.docx

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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-CEC

AdvancedperipheralsincludetwoSDMMCinterfaces,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：

ALPSADIIRJRC/NJRKECOTAXSeoulSemiconductorTIWalsinTechnology

STM32F779xx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. 

Memories 

Upto2MbytesofFlashmemoryorganizedintotwobanksallowingread-while-write

SRAM:

512Kbytes（including128KbytesofdataTCMRAMforcriticalreal-timedata）+16KbytesofinstructionTCMRAM（forcriticalreal-timeroutines）+4KbytesofbackupSRAM

Flexibleexternalmemorycontrollerwithupto32-bitdatabus:

SRAM,PSRAM,SDRAM/LPSDRSDRAM,NOR/NANDmemories

DualmodeQuad-SPI 

Graphics 

Chrom-ARTAccelerator™（DMA2D）,graphicalhardwareacceleratorenablingenhancedgraphicaluserinterface

HardwareJPEGcodec

LCD-TFTcontrollersupportinguptoXGAresolution

MIPI®DSIhostcontrollersupportingupto720p30Hzresolution

Clock,resetandsupplymanagement 

1.7Vto3.6VapplicationsupplyandI/Os

POR,PDR,PVDandBOR

DedicatedUSBpower

4-to-26MHzcrystaloscillator

Internal16MHzfactory-trimmedRC（1%accuracy）

32kHzoscillatorforRTCwithcalibration

Internal32kHzRCwithcalibration

Low-power 

Sleep,StopandStandbymodes

VBAT supplyforRTC,32×32bitbackupregisters+4KbytesbackupSRAM

3×12-bit,2.4MSPSADC:

upto24channels 

Digitalfiltersforsigmadeltamodulator（DFSDM）,8ch