ATmega16电压测量实例

1、ThisprogramwasproducedbytheCodeWizardAVRV2.04.4aAdvancedProject:Version:Date:2011-07-30Author:NeVaDaCompany:Comments:Chiptype:ATmega16Programtype:ApplicationAVRCoreClockfrequency:8.000000MHzMemorymodel:SmallExternalRAMsize:0DataStacksize:256#include#include/DeclareyourglobalvariablesherecharLCD_716=

2、0 x3f,0 x06,0 x5b,0 x4f,0 x66,0 x6d,0 x7d,0 x07,0 x7f,0 x6f,0 x77,0 x7c,0 x39,0 x5e,0 x79,0 x71;chardis_buff4;unsignedintvotage=0;unsignedintvot1;/Timer0overflowinterruptserviceroutineinterruptTIM0_OVFvoidtimer0_ovf_isr(void)/Placeyourcodehere/Readthe8mostsignificantbits/oftheADconversionresultPORTC

3、.7=PORTC.7;delay_us(20);while(ADCSRA&0 x10)=0);ADCSRA|=0 x10;vot1=ADCW;votage=(unsignedlong)vot1*5000/1024;voiddisplay(unsignedintvot)/movevottodis_buffchari;charj;for(i=0;i4;i+)dis_buffi=vot%10;vot/=10;/dis_bufftoLEDsfor(j=0;j=3;j+)PORTC=LCD_7dis_buffj;PORTA=(1j);delay_ms(2);PORTA=0 x0f;voidmain(vo

4、id)/Declareyourlocalvariableshere/Input/OutputPortsinitialization/PortAinitialization/Func7=InFunc6=InFunc5=InFunc4=InFunc3=OutFunc2=OutFunc1=OutFunc0=Out/State7=TState6=TState5=TState4=TState3=0State2=0State1=0State0=0PORTA=0 x00;DDRA=0 x0F;/PortBinitialization/Func7=InFunc6=InFunc5=InFunc4=InFunc3

5、=InFunc2=InFunc1=InFunc0=In/State7=TState6=TState5=TState4=TState3=TState2=TState1=TState0=TPORTB=0 x00;DDRB=0 x00;/PortCinitialization/Func7=InFunc6=OutFunc5=OutFunc4=OutFunc3=OutFunc2=OutFunc1=OutFunc0=Out/State7=TState6=0State5=0State4=0State3=0State2=0State1=0State0=0PORTC=0 x00;DDRC=0 xFF;/Time

6、r/Counter0initialization/Clocksource:SystemClock/Clockvalue:Timer0Stopped/Mode:Normaltop=FFh/OC0output:DisconnectedTCCR0=0 x03;TCNT0=0 x00;OCR0=0 x00;/ExternalInterrupt(s)initialization/INT0:Off/INT1:Off/INT2:OffMCUCR=0 x00;MCUCSR=0 x00;/Timer(s)/Counter(s)Interrupt(s)initializationTIMSK=0 x01;/Anal

7、ogComparatorinitialization/AnalogComparator:Off/AnalogComparatorInputCapturebyTimer/Counter1:OffACSR=0 x80;SFIOR=0 x00;/ADCinitialization/ADCClockfrequency:1000.000kHz/ADCVoltageReference:AREFpin/ADCAutoTriggerSource:Timer0Overflow/Onlythe8mostsignificantbitsof/theADconversionresultareusedADMUX=0 x47;ADCSRA=