基于FPGA设计与实现UART

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Wewillcontinuetoimprovethecompany'sinternalcontrolsystem,andsteadyimprovementinabilitytomanageandcontrol,optimizebusinessprocesses,toensuresmoothprocesses,responsibilitiesinplace;tofurtherstrengtheninternalcontrols,playacontrolpostindependentoversightroleofevaluationcomplyingwiththird-partyresponsibility;toactivelymakeuseofinternalaudittoolsdetectpotentialmanagement,streamline,standardizerelatedtransactions,strengtheningoperationsinaccordancewithlaw.Deepeningtheinformationmanagementtoensurefullcommunicationzeroresistance.ToconstantlyperfectERP,andBFS++,andPI,andMIS,andSCM,informationsystembasedconstruction,fullintegrationinformationsystem,achievedinformationresourcesshared;toexpandPortalsystemapplicationofbreadthanddepth,playinformationsystemonenterpriseofAssistantrole;toperfectdailyrunmaintenanceoperationofrecords,promoteproblemreasonsanalysisandsystemhandover;tostrengtheningBFS++,andERP,andSCM,technologyapplicationoftraining,improveemployeesapplicationinformationsystemofcapacityandlevel.Humanisticcaretoensurezero.TostrengtheningHumanitiescare,continuestofostercompanywindclear,andgasare,andheartShunofcultureatmosphere;strengtheninglovehelpedtrapped,caredifficultemployees;carriedoutstyleactivities,richemployeeslife;strengtheninghealthandlabourprotection,organizationcareerhealthmedical,controlcareeragainst;continuestoimplementationpsychologicalwarningpreventionsystem,trainingemployeeshealthofcharacter,andstableofmoodandenterprisingofattitude,createdfriendlyfraternityofHumanitiesenvironment.Tostrengthenriskmanagement,ensurethatthebusinessofzerorisk.Tostrengthenedbusinessplansmanagement,willbusinessbusinessplanscovertoalllevel,ensurethebusinesscancontrolincontrol;tocloseconcernfinancial,andcoalelectriclinkage,andenergy-savingscheduling,nationalpolicytrends,strengtheningtrack,activeshould;toimplementationState-ownedassetsmethod,furtherspecificationbusinessfinancialmanagement;toperfectrisktubecontrolsystem,achievedriskrecognition,andmeasure,andassessment,andreport,andcontrolfeedbackofclosedringmanagement,improveriskpreventioncapacity.Tofurtherstandardizetrading,andstrivetoachieveaccordingtolaw,standardizeandfair.Innovationofperformancemanagement,toensurethatpotentialemployeeszerofly.Tostrengthenperformancemanagement,processcontrol,enhanceemployeeevaluationandlevelsofeffectivecommunicationtoimproveperformancemanagement.Tofurtherquantifyandrefineemployeestandards...Work,fullplayparty,andbranch,andmembersinfivetypeEnterpriseconstructionintheofcorerole,andfightingfortressroleandpioneermodelrole;tocontinuestostrengtheningfourgoodleadershipconstruction,fullplaylevelscadresinenterprisedevelopmentinthe门急诊医技楼外脚手架采用悬挑式单排脚手架,基础回填后改为落地式双排脚手架,脚手架搭设高度为23m。病房医技楼外脚手架采用悬挑双排脚手架,分四次悬挑ofbackbonebackbonerole;tofullstrengtheningmembersyouthwork,fullplayyouthemployeesincompanydevelopmentintheofforcerole;toimproveindependentCommissionagainstcorruptionworklevel,strengtheningonenterprisebusinesskeylinkofeffectivenessmonitored.,Andmaintainstability.Tofurtherstrengthenpublicityandeducation,improvetheoveralllegalsystem.Wemuststrengthensafetymanagement,establishandimprovetheeducation,supervision,andevaluationasoneofthetrafficsafetymanagementmechanism.ToconscientiouslysumuptheOlympicsecuritycontrols,promotingintegratedmanagementtoahigherlevel,higherstandards,ahigherlevelofdevelopment.Employees,todayislunarcalendaronDecember24,theoxBellisabouttoring,atthistimeofyear,weclearlyfeelthepulseoftheXXpowergenerationcompanytoflourish,tomoreclearlyhearXXpowergenerationcompaniesmatureandsymmetrybreathing.Recallingpastoneanotheracrossarailing,weareenthusiasticandfullofconfidence.Futuredevelopmentopportunities,wemoreexcitingfightmorespirited.Employees,letustogetheracross2013fullofchallengesandopportunities,tocreateagreen,low-costoperation,fullofhumanecareofaworld-classpowergenerationcompanyandworkhard!TheoccasionoftheSpringFestival,mysincerewishthatyouandthefamiliesofthestaffinthenewyear,goodhealth,happy,happy基于FPGA设计与实现UARTUART(即UniversalAsynchronousReceiverTransmitter通用异步收发器)是广泛使用的串行数据传输协议。UART允许在串行链路上进行全双工的通信。---串行外设用到RS-232异步串行接口,本实验室平台用的是MAXIM公司生产的MAX23。MAX232可以将串口设备需要发送的TTL/CMOS逻辑电平转换为RS-232逻辑电平,同时也可以将要接收的RS-232逻辑电平转换为TTL/CMOS逻辑电平。本实验通过编写VHDL语言程序,实现数据在实验平台与PC之间通过串口进行收发,基于FPGA器件设计与实现UART。一UART基本知识UART是通过串行传送数据而实现通信的,它的帧格式如下:---包括线路空闲状态(高电平)、起始位(低电平‘0’)、5~8位数据位、可选的校验位和停止位(可为1、1.5、2位)。这种格式是由起始位和停止位来实现字符的同步。另外,UART在国际上有一标准的波特率系列,在本实验中采用的波特率为9600HZ。二管脚锁定及功能说明1、时钟clk锁定在4MHZ的频率,是本实验箱的28号管脚的第三个针脚;2、复位键reset锁在105号管脚,用来复位;3、数据输入端口din[7..0]为117——124,实验8位数据输入;4、输入使能口trans_lock为57,按一次输入一位数据;5、接收数据dout[7..0]显示为85——96,显示接收的数据6、接收出错信号frame_erro锁在74,为1则表示接收有误;7、接收完毕frame_end信号为75,为1表示接收完毕为0则表示正在接收,不允许发送;8、发送完毕信号trans_end为76,为1表示发送完毕,为0则表示正在发送,不允许接收。Wewillcontinuetoimprovethecompany'sinternalcontrolsystem,andsteadyimprovementinabilitytomanageandcontrol,optimizebusinessprocesses,toensuresmoothprocesses,responsibilitiesinplace;tofurtherstrengtheninternalcontrols,playacontrolpostindependentoversightroleofevaluationcomplyingwiththird-partyresponsibility;toactivelymakeuse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