无线红外模块-AVR程序代码

ID:51024 · 发表于 2014-7-12 01:56

以前学的AVR写的一些程序，分享一下

#include

#include

#define uint unsigned int

#define uchar unsigned char

// Alphanumeric LCD Module functions

#asm

.equ __lcd_port=0x18 ;PORTB

#endasm

#include

uchar startflag=0,bitnum,irtime,irprosok,irreceok;

uchar irdata[33],dis[8],ircode[4];

// External Interrupt 0 service routine

interrupt [EXT_INT0] void ext_int0_isr(void)

{

if(startflag==1)

{

      if(irtime>=32)

            {

               bitnum=0;

            }

      irdata[bitnum]=irtime;

      irtime=0;

      bitnum++;

      if(bitnum==33)

               {

                     bitnum=0;

                     irreceok=1;

               }

               }

if(startflag==0)

{

startflag=1;

irtime=0;

}

}

// Timer 0 output compare interrupt service routine

interrupt [TIM0_COMP] void timer0_comp_isr(void)

{

irtime++;

}

void irpros(void)

{

uchar k,value,i,j;

k=1;

for(j=0;j<4;j++)

{

for(i=0;i<8;i++)

{

value=value>>1;

if(irdata[k]>6)

{

value=value|0x80;

}

k++;

}

ircode[j]=value;

}

irprosok=1;

}

void irwork(void)

{

dis[0]=ircode[0]/16;

dis[1]=ircode[0];

dis[2]=ircode[1]/16;

dis[3]=ircode[1];

dis[4]=ircode[2]/16;

dis[5]=ircode[2];

dis[6]=ircode[3]/16;

dis[7]=ircode[3];

}

void display_lcd()

{

lcd_gotoxy(0,0);

lcd_putchar(dis[0]+48);

lcd_putchar(dis[1]+48);

lcd_putchar(dis[2]+48);

lcd_putchar(dis[3]+48);

lcd_putchar(dis[4]+48);

lcd_putchar(dis[5]+48);

lcd_putchar(dis[6]+48);

lcd_putchar(dis[7]+48);

}

// Declare your global variables here

void main(void)

{

// Declare your local variables here

// Input/Output Ports initialization

// Port A initialization

// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In

// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T

PORTA=0x00;

DDRA=0x00;

// Port B initialization

// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In

// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T

PORTB=0x00;

DDRB=0x00;

// Port C initialization

// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In

// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T

PORTC=0x00;

DDRC=0x00;

// Port D initialization

// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In

// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T

PORTD=0x00;

DDRD=0x00;

// Timer/Counter 0 initialization

// Clock source: System Clock

// Clock value: 62.500 kHz

// Mode: CTC top=OCR0

// OC0 output: Disconnected

TCCR0=0x0C;

TCNT0=0x00;

OCR0=0x0f;

// Timer/Counter 1 initialization

// Clock source: System Clock

// Clock value: Timer 1 Stopped

// Mode: Normal top=FFFFh

// OC1A output: Discon.

// OC1B output: Discon.

// Noise Canceler: Off

// Input Capture on Falling Edge

// Timer 1 Overflow Interrupt: Off

// Input Capture Interrupt: Off

// Compare A Match Interrupt: Off

// Compare B Match Interrupt: Off

TCCR1A=0x00;

TCCR1B=0x00;

TCNT1H=0x00;

TCNT1L=0x00;

ICR1H=0x00;

ICR1L=0x00;

OCR1AH=0x00;

OCR1AL=0x00;

OCR1BH=0x00;

OCR1BL=0x00;

// Timer/Counter 2 initialization

// Clock source: System Clock

// Clock value: Timer 2 Stopped

// Mode: Normal top=FFh

// OC2 output: Disconnected

ASSR=0x00;

TCCR2=0x00;

TCNT2=0x00;

OCR2=0x00;

// External Interrupt(s) initialization

// INT0: On

// INT0 Mode: Falling Edge

// INT1: Off

// INT2: Off

GICR|=0x40;

MCUCR=0x02;

MCUCSR=0x00;

GIFR=0x40;

// Timer(s)/Counter(s) Interrupt(s) initialization

TIMSK=0x02;

// Analog Comparator initialization

// Analog Comparator: Off

// Analog Comparator Input Capture by Timer/Counter 1: Off

ACSR=0x80;

SFIOR=0x00;

// LCD module initialization

lcd_init(16);

// Global enable interrupts

#asm("sei")

while (1)

   {if(irreceok)

   {

   irpros();

   irreceok=0;

   }

   if(irprosok)

   {

   irwork();

   irprosok=0;

   }

   display_lcd();

   };

}

ID:143447 · 发表于 2017-6-29 10:18

谢谢分享不错

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