please tell me

[i'm child]

dear all....

i want to read temperature from TC74. but when i run this code i read
temperature =-1 why?

what wrong!! please tell me



#include<18f452.h>


#device ADC=10 //use ADC 8 bit convision
#use delay(clock=4000000)
#use rs232(baud=9600,xmit=PIN_C6,rcv=PIN_C7)
#use I2C(master,sda=PIN_C4,scl=PIN_C3)

//Define address on Temperature Sensor :0100 1101
#define Sensor_ID 0b01001101
#include<stdlib.h>
#include "input.c"


unsigned int TempRead(void){
unsigned int Data;

i2c_start();
i2c_write(Sensor_ID);
Data=i2c_read(0);
i2c_stop();
delay_ms(200);
return(Data);
}


void main(void){
unsigned int Data;
int16 readin; //variable readin---->buffer read in
set_tris_b(0xF0); //set tris b for low nibble as output
output_b(0x00);// Clear port B


setup_adc_ports(RA0_ANALOG); //Select RA0 to analog
setup_adc(ADC_CLOCK_INTERNAL);//Select internal clock
set_adc_channel(0);//Select channel


Printf("\t\t ..::Hello world This is a testing a RS-232::..\n\r");

for(;;){
Data=TempRead();
printf("this is temperature : %d C' \n\r",Data);
readin=read_adc(); //Read in and assigned in readin variable
printf("ADC value is : %w \n\r",readin);


if(readin<0>0 && readin <255>255 && readin <512>512 && readin <767>767 && readin <=1023){
output_b(0x0F);
delay_ms(500);

}
}//for loop
}//main

[PCM programmer]

Use the sample code for the TC74 shown in the link below:
http://www.ccsinfo.com/forum/viewtopic.php?t=28089&start=10

[arunb]

Hi,

[i'm child]

Thank alot PCM programmer.