单片机原理及应用（双语版·新形态版） 课件 第10章单片机的C语言程序设计

IntroductoryMicrocontrollerTheoryandApplicationsChapter11DesignofSystemsincorporatingtheMCS-51Pleasemakeasecuritysystemformyfactory需求分析功能规格约束条件Theft?Fire?Accident?Terrorism?Doors?Windows?Equipment?Vehicles?NotmorethanRMB50000软件测试硬件设计软件开发文件系统集成系统测试项目完成安装顾客估价 MOV DPTR,#DATA_ADDRESS MOV R7,#08hLOOP: SETB RS ;Selectdata

CLR RW ;Selectwrite

CLR A MOVC A,@A+DPTR MOV P0,A ;SendchartoLCD ACALL ENABLE_PULSE

ACALL WAIT_BUSY INC DPTR DJNZ R7,LOOP SJMP $DATA_ADDRESS: DB “SHANDONG” Question9.6.1611.4Enhancementsofthe8051增强功能(Page227)Theoriginal8751….UV紫外光谱eraserEPROMprogrammerFlashorEEPROMMemoryElectricallyErasableProgrammableRead-OnlyMemoryEEPROME2PROM电可擦除可编程只读存储器8951只读存储器Analog-to-DigitalConverter8051F321USBInterface(UniversalSerialBus)

89C5132Ethernet以太网InterfaceCS620810Base-ThubEthernetWirelessTransceiver无线电对讲机nRF24E1WirelessTransceiverCompanyTypeCompatibilityINTELMCS-51series系列Compatiblewith8051与8051兼容ATMELAT89X51serieswithFlashPhilips8XC552&89C66XseriesTexasMSP430LGGMS90/97seriesCygnalC8051Fhi-speedSOCMotorola68HC11seriesNot8051compatible与8051不兼容ARMARM10&ARM11seriesMicrochipPICseriesRISCdevicesPopularMicrocontrollersC8051F020Microcontroller100pinsMadebyCygnalC8051F020MicrocontrollerC8051F020Microcontroller100pinsMadebyCygnal8051instructionsetManySFRsC8051F020Microcontroller12-bitADC8-bitADC12-bitDACsComparatorsMultiplexersC8051F020Microcontroller8parallelports2serialports5timersC8051F020Microcontroller64kbyteCodeMemory4kbyteRAM22interruptsC8051F020MicrocontrollerTheWatchdogTimer看门狗定时器

Whydoesamicrocontrollerneedawatchdog?C8051F020MicrocontrollerTheWatchdogTimer看门狗定时器

SoftwareerrorscausingloopsLOOP: MOV A,#45h PUSH A DJNZ ACC,LOOP SJMP $ Runsforever–neverstopsStackfillstheinternalRAM1.SoftwareerrorC8051F020MicrocontrollerTheWatchdogTimer看门狗定时器

Softwareerrorcausingaloop2.Hardwareerror2.HardwareerrorProgramDataLightning闪电CodeMemoryC8051F020Microcontroller1.TheWDTisa21-bittimer.2.OnoverflowitRESETsthemicrocontroller.3.TheprogrammustreloadtheWDTto 0000hpreventaRESET.TheWatchdogTimer看门狗定时器

MOV WDTCN,#0A5hLOOP: MOV A,#45h PUSH A DJNZ ACC,LOOP MOV WDTCN,#0A5hReloadsWDTwith0000hSFRIfclock=2MHz,WDTtime=0.032-524ms.TheWatchdogTimer看门狗定时器

Intel8051MicrochipPICPICOCONTROLLERSMicrocontrollersproducedbyMicrochipUsespecialassemblylanguageClockInterruptCPUEEPROMProgramMemoryRAM(FileRegisters)I/OportsEEPROMDataMemoryA/D3TimersExternalinterruptCounterinputsTotimingcircuitsABC04PIC16C87228227132642552462372282192010191118121713161415MCLR/VppRA0/AN0RA1/AN1VssRC5RC4RB7/PGDRB6/PGCRB5RB4RB3RB2RB1RB0/INTOSC2OSC1RC0RC1RC2RC3VddVssRC7RC6PIC16F8726RA2/AN2RA3/AN3RA4/T0CKRA5/AN4MicrocontrollerSystemsExample1:MicrocontrollerSelf-Tester10VExample1:MicrocontrollerSelf-Tester10VExample1:MicrocontrollerSelf-Tester40-pinZIFsocket8751undertestPowerLEDPort0/1FailPort2/3FailChipOKResetZIF=ZeroInsertionForcemC8751testcircuit8751ZIFLoopbackconnectionforPorts0and1mCPort0/1Fail+5VLoopbackconnectionforPorts0and1mCPort0/1Fail+5VLoopbackconnectionforPorts2and3mCPort2/3FailChipOK+5VResetPrograminEPROMmemoryLOOP1: MOV P1,#0FFh ;P1isInput MOV P0,#0FFh ;P0=FFh MOV A,P1 CJNE A,P0,Fail01 DJNZ P0,LOOP1 ;DecP0LOOP2: MOV P0,#0FFh ;P0isInput MOV P1,#0FFh ;P1=FFh MOV A,P0 CJNE A,P1,Fail01 DJNZ P1,LOOP2 ;DecP1 SJMP TEST23Fail01: SETB LED01 SJMP $MicrocontrollerSystemsExample2:Micro-AGVAGV=AutomatedGuidedVehicle无人搬运车Micro-AGVLoadcompartmentBatteriesSensorsSteppermotor8051boardSteppermotorLeft/rightsensorsFrontsensorRestartMicro-AGVCircuitConnectionsInterfaceSteppermotorInterfacePulsedurationmsVehiclespeedm/sElectricityconsumptionC/m.02.04.06.08.10.122040608020406080100120ElectricityconsumptionSpeedMicrocontrollerSystemsExample3: FurnaceTemperatureControl

炉膛温度控制BoltManufacturersAfricaBulawayoProductsBolts螺栓Nails钉子Screws螺钉Boltshaping形成

duringforging锻造Forgingfurnace锻炉forboltsProblems…. Incorrecttemperatures Wastingfuel浪费燃料MicrocontrollerSystem8031ADCAmplifierFurnaceGearSystemStepperMotorsLCDDisplayKeyPadPCCOMPUTERISEDHEAT-TREATMENTmC8051BurnerunitAirinletFlameoutletFuelinletAir/fuelmixturecontrolBurnerunitBurnerunitformixingfuelandairBurnerunitformixingfuelandairMixturecontrolSteppermotorSteppermotorontheburnerunitTransducerSignalconditionerA/DconverterComparatorControllerSet-pointinputHea