激光引擎分析

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1、XS2VCC3]VCCTRIGWAKEDLEDBPRPWRDWNRTSCTSTXDRXDGNI)VBATTNCl丄ARN「WAKER210K专WAKEV10ENGDLEDR310K

2、:TRIGWAKEDLEDBPRFVMRDWNRTSCTSTXDRXDGNDVDATTNCSE923

3、R5lOOkQ电子秤扫描模块接口如下所示:SE923vccV6WF1N4148R14lOOkQ采集器和电子秤扫描模块中电路图最大区别在于上拉电阻的阻值（采集器屮为100K,电子秤扫描模块为10K）o引脚定义以下是SE955引脚定义MnemonicNo.TypeDescriptionVBAH2IPowerSupplyPowersupplyvoltage.SE-955-I100R/E100R3.0to36VDCSE-955-I105R/E

4、105R3.2to5.5VDC.GND3Ground:0VreferenceAIM/WAKt*11IWakeUp:WhentheSE-955isinlowpowermode,pulsingthispmlowfor200nsecawakenstheSt-955.AIMThispinprovidesahardwiredtriggerlinethatcreatesanAIMpattern(aspot).Thisspotallowspositioningthebarcodeandlaserbeamalignmenttomaximizethes

5、cancapabilityoftheSF-955AimmodeisnotsupportedontheSE-955-E100R.FLASH.DWLD*11FlashDownLoadDonotdrivehigh.Pulllowfordownload.RXD41ReceivedData:Serialinputport.CTS，61CleartoSend:Serialporthandshakingline.TRIG*121Trigger:Hardwaretriggeringline.DrivingthispinlowcausestheSE-9

6、55tostartascananddecodesession.VbattSE-955>l100R/E100RaMinMaxTVILVBAnx0.2>100k[VIHVBAnxO8WPUT1vSE-955-I105R/E105RVR£G-3.3VMin.Max.TV

7、t0.28V100k1Vih2.26VINPUTII1/11_1lx]/SCHOTTKYDIOOCMnemonicPinNo.TypeDescriptionTXDRTS*PWRDWNBPR・DLED*以下是H50TransminedData:Serialoutputport

8、.70RequesttoSend:Serialporthandshakingline.80PowerDownReadyWhenhigh,thedecoderisinlowpowermode.90Beeper*:Lowcurrentbeeperoutput.,00DecodeLED:LowcurrentdecodeLEDoutput.oneyWell的引脚定义：PinNumberTTLlevel232Input/Output1232InvInput2VinPower3GNDPower4(n)RXD2,4Input5(n)TxD2Outp

9、ut6(n)CT&24Input7(n)RTS1Output8PWRDWN3Output9nBEEPEROutput10nGoodReadOutput11nWAKE/AIMInput12nTrigInput/OutputSignalDescription232INVInput・TTLlevel232polaritycontrolwith33.2kohmpull-down.ConnecttogroundorUARTtoUARTserialsignalpolarityandoverrideinternalpolaritycontrol.T

10、hissignalcanalsobedriventoalogichightoinverttheRS232signalpolarity.Thereisnointernalpolaritycontrol.VinPower一S