TI Stellaris LM4F232 32位MCU开发方案

TIStellarisLM4F23232位MCU开发方案关键字：工业控制,运动控制,马达控制,仪器仪表,工厂自动化;医疗电子;消费类电子,手持设备,游戏机TI公司的StellarisLM4F232H5QD是基于ARMCortex™-M4F处理器核的32位MCU,工作频率80MHz,集成了系统定时器(SysTick),嵌套的向量中断控制器(NVIC),带时钟门的叫醒中断控制器(WIC),存储器保护单元(MPU),IEEE754兼容的单精度浮点单元(FPU)等,用于外设的8/16/32位专用并行总线,支持SDRAM,SRAM/闪存,FPGA和CPLD,主要用在低功耗手持智能设备,游戏机,家庭和商用定点监视和控制,运动控制,医疗仪器,测试测量设备,工厂自动化,防火和安全系统,智能电网,智能照明控制和交通.本文介绍了LM4F232H5QDMCU主要特性和方框图,评估板EK-LM4F232主要特性和方框图,电路图,材料清单和PCB元件布局图.TITexasInstrumentsistheindustryleaderinbringing32-bitcapabilitiesandthefullbenefitsofARM?Cortex™-M-basedmicrocontrollerstothebroadestreachofthemicrocontrollermarket.Forcurrentusersof8-and16-bitMCUs,Stellaris?withCortex-Moffersadirectpathtothestrongestecosystemofdevelopmenttools,softwareandknowledgeintheindustry.DesignerswhomigratetoStellarisbenefitfromgreattools,smallcodefootprintandoutstandingperformance.Evenmoreimportant,designerscanentertheARMecosystemwithfullconfidenceinacompatibleroadmapfrom$1to1GHz.Withblazingly-fastresponsiveness,Thumb-2technologycombinesboth16-bitand32-bitinstructionstodeliverthebestbalanceofcodedensityandperformance.Thumb-2uses26percentlessmemorythanpure32-bitcodetoreducesystemcostwhiledelivering25percentbetterperformance.TheTexasInstrumentsStellarisfamilyofmicrocontrollersbringshigh-performance32-bitcomputingtocost-sensitiveembeddedmicrocontrollerapplications.TheStellarisLM4FseriesofARMCortex-M4microcontrollersprovidestopperformanceandadvancedintegration.Theproductfamilyispositionedforcost-consciousapplicationsrequiringsignificantcontrolprocessingandconnectivitycapabilitiessuchas:■Lowpower,hand-heldsmartdevices■Gamingequipment■Homeandcommercialsitemonitoringandcontrol■Motioncontrol■Medicalinstrumentation■Testandmeasurementequipment■Factoryautomation■Fireandsecurity■SmartEnergy/SmartGridsolutions■Intelligentlightingcontrol■Transportation图1.Stellaris®LM4F232方框图图2.StellarisLM4F232H5QDMCU详细方框图StellarisLM4F232H5QDMCU主要特性:Stellaris®LM4F232评估板EK-LM4F232TheStellaris®LM4F232EvaluationBoard(EK-LM4F232)isanevaluationplatformfortheStellarisLM4F232H5QDARM®Cortex™-M4F-basedmicrocontroller.Theevaluationboard’sdesignhighlightstheLM4F232H5QDmicrocontroller’sUSB2.0On-The-Go/Host/Device(USBOTG/Host/Device)interface,12-bitAnalog-to-DigitalConverter(ADC),Real-TimeClock(RTC),andbattery-backedHibernationmodule.图3.评估板EK-LM4F232外形图评估板EK-LM4F232包括:TheEK-LM4F232evaluationkitcomeswiththefollowing:�StellarisEK-LM4F232evaluationboard�On-boardStellaris®In-CircuitDebugInterface(ICDI)�Cables–USBMini-BtoUSB-Aplugcable(fordebug)–USBMicro-AplugtoUSB-Areceptaclecable–USBMicro-BplugtoUSB-Aplugcable�USBFlashdrive�3VCR2032lithiumcoincellbattery�CDcontaining:–StellarisWare®PeripheralDriverLibraryandexamplesourcecode–Stellaris®FirmwareDevelopmentPackagewithexamplesourcecode–Quickstartapplicationwithsourcecode•Windowscompanionapplicationforquickstartapplication–Completedocumentation–Asupportedversionofoneofthefollowing:•Keil™RealView®MicrocontrollerDevelopmentKit(MDK-ARM)•IAREmbeddedWorkbench®developmenttools•SourceryCodeBenchdevelopmenttools•CodeRedTechnologiesdevelopmenttools•TexasInstruments’CodeComposerStudio™IDETheEK-LM4F232evaluationkitincludesthefollowingfeatures:�Stellaris®LM4F232H5QDmicrocontroller�Dataloggerdemoapplication–6screwterminals•4analoginputs(0-20V)•Power•Ground–3-axisanalogaccelerometer–2Analogtemperaturesensors•ExternalTMP20temperaturesensor•Internalmicrocontrollertemperaturesensor–Microcontrollercurrentshuntamplifier�96x64colorOLEDdisplay�USBMicro-ABconnectorforHost/Device/OTG�microSDcardslot�5user/navigationswitches�UserLED�Precision3.0Vreference�AvailableI/Obroughtouttoheaderson0.1grid�Debug–Stellaris®In-CircuitDebugInterface(ICDI)–Standard10-pinJTAGheader�ShuntresistorstomeasurecurrentonVBATandVDD�CoincellbackupbatteryforHibernatemode�Resetbutton图4.评估板EK-LM4F232方框图图5.评估板EK-LM4F232方框图(1)图6.评估板EK-LM4F232方框图(2)图7.评估板EK-LM4F232方框图(3)图8.评估板EK-LM4F232方框图(4)图9.评估板EK-LM4F232方框图(5)图10.评估板EK-LM4F232PCB元件布局图:顶层图11.评估板EK-LM4F232PCB元件布局图:底层评估板EK-LM4F232材料清单(BOM):AO-Electronics傲壹电子官网：中文网：