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TIMSP430F522x系列MCU蓝牙和音频源参考设计TI公司的MSP430F522x和MSP430F521x系列是超低功耗混合信号MCU,包括了功能强大的16位RISCCPU,16位寄存器,具有最高代码效率的常数发生器,四个16位计时器,高性能10位ADC两个通用串行通信接口(USCI),硬件乘法器DMA比较器和带告警功能的RTC模块.主要用于模拟和数字传感器系统,通用应用以及数据采集.本文介绍了MSP430F522x主要特性,MSP430F5229/27和MSP430F5219/17功能框图,蓝牙和MSP430音频参考设计BT-MSPAUDSOURCE板主要特性,电路图和材料清单,PCB设计文件.TheTexasInstrumentsMSP430familyofultra-low-powermicrocontrollersconsistsofseveraldevicesfeaturingdifferentsetsofperipheralstargetedforvariousapplications.Thearchitecture,combinedwithextensivelow-powermodes,isoptimizedtoachieveextendedbatterylifeinportablemeasurementapplications.Thedevicefeaturesapowerful16-bitRISCCPU,16-bitregisters,andconstantgeneratorsthatcontributetomaximumcodeefficiency.Thedigitallycontrolledoscillator(DCO)allowsthedevicetowakeupfromlow-powermodestoactivemodein3.5µs(typical).TheMSP430F522xseriesaremicrocontrollerswithfour16-bittimers,ahigh-performance10-bitADC,twouniversalserialcommunicationinterfaces(USCIs),ahardwaremultiplier,DMA,acomparator,andanRTCmodulewithalarmcapabilities.TheMSP430F521xseriesincludealloftheperipheralsoftheMSP430F522xserieswiththeexceptionoftheADC.AlldeviceshaveasplitI/Osupplysystemthatallowsforaseamlessinterfacetootherdevicesthathaveanominal1.8-VI/Ointerfacewithouttheneedforexternalleveltranslation.Typicalapplicationsincludeanaloganddigitalsensorsystems,dataloggers,andvariousgeneral-purposeapplications.MSP430F522x主要特性:DualSupplyVoltageDevicePrimarySupply(AVCC,DVCC):PoweredFromExternalSupply:3.6VDownto1.8VUpto22General-PurposeI/OWithuptoFourExternalInterruptsLow-VoltageInterfaceSupply(DVIO):PoweredFromSeparateExternalSupply:1.62Vto1.98VUpto31General-PurposeI/OWithupto12ExternalInterruptsSerialCommunicationsUltra-LowPowerConsumptionActiveMode(AM):AllSystemClocksActive290µA/MHzat8MHz,3.0V,FlashProgramExecution(Typical)150µA/MHzat8MHz,3.0V,RAMProgramExecution(Typical)StandbyMode(LPM3):Real-TimeClock(RTC)WithCrystal,Watchdog,andSupplySupervisorOperational,FullRAMRetention,FastWakeup:1.9µAat2.2V,2.1µAat3.0V(Typical)Low-PowerOscillator(VLO),General-PurposeCounter,Watchdog,andSupplySupervisorOperational,FullRAMRetention,FastWakeup:1.4µAat3.0V(Typical)OffMode(LPM4):FullRAMRetention,SupplySupervisorOperational,FastWakeup:1.1µAat3.0V(Typical)ShutdownMode(LPM4.5):0.18µAat3.0V(Typical)WakeupFromStandbyModein3.5µs(Typical)16-BitRISCArchitecture,ExtendedMemory,upto25-MHzSystemClockFlexiblePower-ManagementSystemFullyIntegratedLDOWithProgrammableRegulatedCoreSupplyVoltageSupplyVoltageSupervision,Monitoring,andBrownoutUnifiedClockSystemFLLControlLoopforFrequencyStabilizationLow-PowerLow-FrequencyInternalClockSource(VLO)Low-FrequencyTrimmedInternalReferenceSource(REFO)32-kHzWatchCrystals(XT1)High-FrequencyCrystalsupto32MHz(XT2)16-BitTimerTA0,Timer_AWithFiveCapture/CompareRegisters16-BitTimerTA1,Timer_AWithThreeCapture/CompareRegisters16-BitTimerTA2,Timer_AWithThreeCapture/CompareRegisters16-BitTimerTB0,Timer_BWithSevenCapture/CompareShadowRegistersTwoUniversalSerialCommunicationInterfacesUSCI_A0andUSCI_A1EachSupport:EnhancedUARTWithAutomaticBaudRateDetectionIrDAEncoderandDecoderSynchronousSPIUSCI_B0andUSCI_B1EachSupport:I2CSynchronousSPI10-BitAnalog-to-DigitalConverter(ADC)WithInternalReference,Sample-and-HoldComparatorHardwareMultiplierSupports32-BitOperationsSerialOnboardProgramming,NoExternalProgrammingVoltageNeededThreeChannelInternalDMABasicTimerWithRTCFeatureMSP430F522x应用:•AnalogandDigitalSensorSystems•General-PurposeApplications•DataLoggers图1.MSP430F5229/27功能框图图2.MSP430F5219/17功能框图图3.MSP430F5214/12功能框图蓝牙和MSP430音频参考设计TheBluetoothandMSP430AudioSourcereferencedesigncanbeusedbycustomerstocreateavarietyofapplicationsforlow-end,low-poweraudiosourcesolutionsforapplicationsincludingtoys,projectors,smartremotesandanyaudiostreamingaccessories.Thisreferencedesignisacost-effectiveaudioimplementationandwithfulldesignfilesprovidedallowsyoutofocusyoureffortsonapplicationandendproductdevelopment.ThisreferencedesignalsoprovidestheTIBluetoothStack.Thisdesigniscompliantwiththefollowingstandards:•FCC/ICRegulatoryCompliance•FCCPart15ClassACompliant•ICICES-003ClassACompliantThiskitcontains:•OneBT-MSPAUDSOURCEboard•Onemini-USBcable•Onestereoaudiocablewith3.5-mmplugconnectors蓝牙和MSP430音频参考设计主要特性:EnablesBluetoothaudio(SBCencode/decode)withlowcost,lowpowerMSP430F5229DesignoffloadsaudioprocessingfromMCUtotheBluetoothdevicewhichenableslowpoweraudioCost-effectivelowendwirelessaudiosolutionwithafourlayerlayoutandQFNpackagesCoreofthesolutionisTI’sSimpleLink™CC2564whichoffersbest-in-classBluetoothperformance(+12dBmoutputpower)leadingtorobustconnectionoverlongrangeCC256xandTIBluetoothStackbothhaveBluetoothSubsystemQDIDsallowingyoutoonlyneedaBluetoothEndProductListingThiscircuitdesignistestedandincludesfirmware,demoandwikipageforquickstartguide.图4.BT-MSPAUDSOURCE板外形图图5.音频源线输入连接图AO-Electronics傲壹电子官网：中文网：板电路图(1)图7.BT-MSPAUDSOURCE板电路图(2)图8.BT-MSPAUDSOURCE板电路图(3)图9.BT-MSPAUDSOURCE板电路图(4)