/Designs/Thermometer/SW/ds1820.c
0,0 → 1,25
#include "1wire.c"
 
float ds1820_read()
{
int8 busy=0, temp1, temp2;
signed int16 temp3;
float result;
 
onewire_reset();
onewire_write(0xCC);
onewire_write(0x44);
 
while (busy == 0) busy = onewire_read();
 
onewire_reset();
onewire_write(0xCC);
onewire_write(0xBE);
temp1 = onewire_read();
temp2 = onewire_read();
temp3 = make16(temp2, temp1);
 
result = (float) temp3 / 16.0; //calculation pro DS18B20 with 0.1 deg C
 
return(result);
}