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RL78G13Promotion Board PIN IO
RL78G13PromotionBoardPINIOGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDJ2J1J2J1J2J1J2J1J2J1VDDVDDVDDVDDVDDVDDVDDVDDVDDVDDP140P10P140P10P140P10P140P10P140P10P141P11P141P11P141P11P141P11P141P11P00P12P00P12P00P12P00P12P00P12P01P13/TXDP01P13/TXDP01P13/TXDP01P13/TXDP01P13/TXDP02P14/RXD
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2022-09-28 15:31
RL78_G13开发板MCU_R5F100LEAFB_Datasheet
RL78_G13开发板MCU_R5F100LEAFB_DatasheetUser’sManualRL78/G1316User’sManual:Hardware16-BitSingle-ChipMicrocontrollersAllinformationcontainedinthesematerials,includingproductsandproductspecifications,representsinformationontheproductatthetimeofpublicationandissubjecttochangebyRenesasElectronicsCorp.withoutnotice.PleasereviewthelatestinformationpublishedbyRenesasElectronicsCorp.throughvariousmeans,includingtheRenesasElectronicsCorp.website(http://www.renesas.com).www.renesas.comRev.2.00Feb2012
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6.47 MB
2022-09-27 22:42
矩阵键盘控制数码管显示
矩阵键盘控制数码管显示
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2022-09-27 21:14
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2022-09-27 21:01
Easily Add Memory Security Monitoring and Control to Medical Sensors and Cons
Abstract:Thistutorialdescribeshow1-Wire®devicesaddelectroniccapabilitiestomanymedicalconsumables.Thearticleexplainshowthe1-Wireprotocoloperatesandintroducesthefunctionalitythat1-Wiretechnologyofferstotrackandmonitorconsumables.Thebenefitsof1-Wiretechnologyincludeassurancethattheconsumableiscalibratedtoahostinstrument;safeguardstotrackandsecurethequalitycontrolofthemedicalconsumable;memorytomonitorandpreventunsanitaryreuseofaconsumablewithalimitedlifespan;andsecuremechanismstoprotectagainstunauthorizedaftermarketconsumables.Custompackagingoptionsaccommodateawiderangeofconsumables.Maxim>AppNotes>1-WireDevicesInterfaceCircuitsMemorySecurityandAuthenticationTemperatureSensorsandThermalManagementKeywords:medicalsensor,medicalconsumable,ID,identification,control,serialnumber,monitor,anticlone,1-Wire,singlewire,electricalMay10,2010componentAPPLICATIONNOTE4702EasilyAddMemory,Security,Monitoring,andControltoMedicalSensorsandConsumablesAbstract:Thistutorialdescribeshow1-Wiredevicesaddelectroniccapabilitiestomanymedicalconsumables.Thearticleexplainshowthe1-Wireprotocoloperatesandintroducesthefunctionalitythat1-Wiretechnologyofferstotrackandmonitorconsumables.Thebenefitsof1-Wiretechnologyincludeassurancethattheconsumableiscalibratedtoahostinstrument;safeguardstotr
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2022-09-27 20:32
简单软件实现1_Wire®温度器件的硬件CRC校验和串行码流的误码检测
摘要:所有1-Wire温度器件均包含一个唯一的识别码,保存在只读存储器(ROM)内,该识别码在1-Wire总线中用作唯一的网络地址。另外,部分温度器件的暂存器还有一个CRC(循环冗余校验)字节用于1-Wire通信验证。本应用笔记以及附带的程序提供了一种简单途径,验证1-Wire器件之间通信的正确性,并检测串行数据流的误码。这种方法能够在每个器件中通过软件计算DOW(Dallas单线)CRC,并与器件的硬件CRC值进行对比。本文将以DS1822经济型1-Wire数字温度计为例进行说明。简单软件实现1-Wire温度器件的硬件CRC校验和串行码流的误码检测HrishikeshShindeDec18,2009摘要:所有1-Wire温度器件均包含一个唯一的识别码,保存在只读存储器(ROM)内,该识别码在1-Wire总线中用作唯一的网络地址。另外,部分温度器件的暂存器还有一个CRC(循环冗余校验)字节用于1-Wire通信验证。本应用笔记以及附带的程序提供了一种简单途径,验证1-Wire器件之间通信的正确性,并检测串行数据流的误码。这种方法能够在每个器件中通过软件计算DOW(Dallas单线)CRC,并与器件的硬件CRC值进行对比。本文将以DS1822经济型1-Wire数字温度计为例进行说明。CRC算法CRC(循环冗余校验)是串行数据流中检测误码最有效的方法,CRC校验能够使用户确保温度检测器件之间的数据传输正确,该方法对硬件需求最小。DOW(Dallas单线)CRC用于Maxim的1-Wire温度检测产品,例如:DS1821、DS1822和DS18B20。DOWCRC可以利用下列多项式表示:多项式=X8+X5+X4+1详细的CRC算法,请参考应用笔记27:“理解和运用MaximiButton产品中的循环冗余校验(CRC)”。从以下硬件电路的功能可以很容易理解CRC,通常表示为带反馈的移位寄存器,图1给出了DS1822的硬件电路框图。图1.CRC硬件模型ROM码CRC每个DS1822都在其ROM中保存了一个唯一的8字节识别码,该ROM码的最低有效字节为DS1822的1-Wire家族码:22h。随后6个字节是唯一的序列号,最高有效字节为CRC字节,由ROM码的前面7个字节计算得到。暂存器CRCDS
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2022-09-27 19:51
防止FPGA设计被盗版高性价比认证方案有效保护基于SRAM的FPGA设计IP
摘要:本应用笔记介绍了FPGA(现场可编程门阵列)及其如何保护系统的关键功能和知识产权(IP)。本文探讨了IP保护的各种途径。SHA-1质询-响应认证被认为是最安全的方法。本文提出了一种能够保护基于SRAM的FPGA设计IP的高性价比认证方案。介绍了DS28E01和DS28CN01器件的特性。防止FPGA设计被盗版:高性价比认证方案有效保护基于SRAM的FPGA设计IPBernhardLinke,首席技术专家Jan05,2010摘要:本应用笔记介绍了FPGA(现场可编程门阵列)及其如何保护系统的关键功能和知识产权(IP)。本文探讨了IP保护的各种途径。SHA-1质询-响应认证被认为是最安全的方法。本文提出了一种能够保护基于SRAM的FPGA设计IP的高性价比认证方案。介绍了DS28E01和DS28CN01器件的特性。本应用笔记发表于2008年7月的ElectronicDesign杂志及其网站。在过去20年中,FPGA(现场可编程门阵列)已经从原型开发工具演变为消费和工业应用的灵活解决方案。随着FPGA逻辑复杂性从几千个逻辑门升至数百万个逻辑门,器件可以容纳更多的系统关键功能(即知识产权,IP)。如今,设计者可以选择FPGA,利用各种技术保护配置数据―OTP(一次性可编程)反熔丝、基于闪存的可重复编程存储单元以及可重复编程、基于SRAM的可配置逻辑单元。由于配置数据存储于FPGA芯片,并且芯片具有防止存储数据读取的机制,反熔丝和基于闪存的解决方案都提供了相对安全的方案。此外,除非采用非常复杂的方法,例如解包、微探针、电压对比电子束显微镜和聚焦离子束(FIB)探测,来“窃听”硅体并使安全机制失效1,否则数据遭到破坏的可能性非常低(关于FPGA的简要背景资料,请参考附录A,FPGA工艺及相关事项)。然而,基于静态RAM(SRAM)的FPGA几乎没有任何安全措施保护IP(配置数据),防止数据被非法复制和剽窃。原因在于,一旦加载数据,则被存储于SRAM存储器单元,而该存储器很容易被侦测确定其内容。此外,缺乏一定的安全机制保护加载到芯片之前的配置数
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2022-09-27 19:23
One_Wire Network Controls Remote SPI Peripherals
Abstract:Toproducethe3-wireSPI™interfacerequiredbyaMAX7221displaycontroller(active-lowCS,DIN,andCLK),this1-Wire®networkseriallyaddressesthree1-Wireswitches(DS2413).ThefirstswitchcreatesChipSelectdirectly(active-lowCS),thesecondcreatestheserial-datalinedirectly(DIN),andthethirdswitch—withthehelpofthreeexclusive-ORgates—createstheserialclock(CLK).Maxim>Designsupport>Appnotes>1-WireDevices>APP4505Maxim>Designsupport>Appnotes>AnalogSwitchesandMultiplexers>APP4505Keywords:1-wirenetworks,1-wireswitches,SPIperipherals,edgedetector,oneshotNov11,2010APPLICATIONNOTE4505One-WireNetworkControlsRemoteSPIPeripheralsBy:MichaelPetersenAbstract:Toproducethe3-wireSPIinterfacerequiredbyaMAX7221displaycontroller(active-lowCS,DIN,andCLK),this1-Wirenetworkseriallyaddressesthree1-Wireswitches(DS2413).ThefirstswitchcreatesChipSelectdirectly(active-lowCS),thesecondcreatestheserial-datalinedirectly(DIN),andthethirdswitch―withthehe
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2022-09-27 19:13
Smart Cable Aids Quality Control and Authentication
Abstract:EmbeddingaDS2431(1-Wire®)chipinthenearendofacableallowsasystemprocessortoidentifyacable(manufacturingdate,revision,configuration,calibrationdata,etc.)andtoauthenticateit(topreventtheuseofinferiorcounterfeits).Maxim>AppNotes>1-WireDevicesSecurityandAuthenticationKeywords:smartcables,1-wirechips,counterfeitcablesOct15,2009APPLICATIONNOTE4623SmartCableAidsQualityControlandAuthenticationBy:BernhardLinkeAbstract:EmbeddingaDS2431(1-Wire)chipinthenearendofacableallowsasystemprocessortoidentifyacable(manufacturingdate,revision,configuration,calibrationdata,etc.)andtoauthenticateit(topreventtheuseofinferiorcounterfeits).ThisdesignideaappearedintheAugust27,2009issueofElectronicDesignmagazine.Electricalcablesremainofcriticalimportanceforinterconnectingequipment(Figure1).Yet,clonedandknock-offcablesarea
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2022-09-27 19:06
A Simple1_Wire®DAC
Abstract:Connectingtheoutputsofa1-Wireaddressableswitch(DS2408)toaresistornetworkallowsthe1-WireinterfacetocontrolasimpleDAC.ThisideaisillustratedbythepresentationofanLED-brightnesscontroller.Maxim>AppNotes>1-WireDevicesKeywords:1-Wireswitches,1-Wireinterface,currentmirrors,D/Aconverters,DACs,resistornetworksOct19,2009APPLICATIONNOTE4627ASimple1-WireDACBy:BernhardLinkeAbstract:Connectingtheoutputsofa1-Wireaddressableswitch(DS2408)toaresistornetworkallowsthe1-WireinterfacetocontrolasimpleDAC.ThisideaisillustratedbythepresentationofanLED-brightnesscontroller.AsimilarversionofthisarticlewaspublishedonSeptember29,2009onthePlanetAnalogwebsite.Amongdevicesavailablewitha1-Wireinterface,thebestknownarememories,temperaturesensors,batterymonitors,andaddressableswitches.One-WireADCsarealsoavailable,butno1-WireDACs.Youcan,however,buildasimple1-WireDACusingaddressa
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2022-09-27 19:03