main.c

DS18B20 for 8051 in C51

//---------------------------------------
// Example read and write DS1820
// for AT89S52
// KEIL C51 v7.5
// www.GetMicro.com
//---------------------------------------
#include<reg8252.h>
#include<stdio.h>
#include<ds1820.h>
#include<serial.h>

unsigned char MyTemp[9];

//---------------------------------------
// Main program
//---------------------------------------
void main(void)
{
    unsigned char tp,tpd,i;
	InitSerial();  		// Initialize serial port
	while(1)
	{
		ReadTemp(&MyTemp[0]);        
		tp  = MyTemp[0] >> 1;
		tpd = ((MyTemp[0] >> 1)&1) ? 5:0;		
		putchar(0x0C);  // clear Hyper terminal
        printf("%bu Temperature : %2bu.%bu\r\n",i++,tp,tpd);	    
		DelayMs(200);
	}
}