#include <mega16.h>
#include <delay.h>
#asm // 1 Wire Bus functions
.equ __w1_port=0x15 ;PORTC
.equ __w1_bit=5
#endasm
#include <1wire.h>
#include <ds1820.h> // DS1820 Temperature Sensor functions
#define uchar unsigned char
#define uint unsigned int
flash uchar tab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
flash uchar wei_tab[]={0x00,0xf7,0xef,0xdf,0xbf}; //高到低
// Declare your global variables here
void display(uchar pos,uchar num)
{
//uint k;
PORTA=tab[num];
PORTC|=0x80; //开锁存
PORTD=wei_tab[pos]; //WEI1开
delay_ms(4); //延时
PORTC&=0xef; //锁存
delay_ms(2); //延时
PORTA=0x00; //灭灯
}
void main(void)
{
// Declare your local variables here
uchar teml,temh,a,b;
uint tem;
float tt;
PORTA=0xff;
DDRA=0xff;
PORTB=0x00;
DDRB=0x00;
PORTC=0x00;
DDRC=0xff;
PORTD=0x00;
DDRD=0xff;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// 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: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// 1 Wire Bus initialization
//w1_init();
while (1)
{
// Place your code here
w1_init();
w1_write(0xcc); //发转换命令
w1_write(0x44); //启动
delay_ms(750);
w1_init();
w1_write(0xcc); //读
w1_write(0xbe);
teml=w1_read();
temh=w1_read();
delay_ms(750); //延时
tem=temh;
tem=tem*256;
tem|=teml;
tt=tem*0.0625;
tem=tt*10+0.5;
///tem=ds1820_read_spd(0xbe);
///tem=0x16;
a=tem/100;
b=tem%100/10;
//a=4;b=5;
display(1,a);
delay_ms(2); //延时
display(2,b);
}
}
|
楼主
