| 1,28 → 1,25 |
|---|
| #include "1wire.c" |
| |
| float ds1820_read() |
| { |
| int8 busy=0, temp1, temp2; |
| signed int16 temp3; |
| float result; |
| int8 busy=0, temp1, temp2; |
| signed int16 temp3; |
| float result; |
| |
| onewire_reset(); |
| onewire_write(0xCC); |
| onewire_write(0x44); |
| onewire_reset(); |
| onewire_write(0xCC); |
| onewire_write(0x44); |
| |
| while (busy == 0) |
| busy = onewire_read(); |
| while (busy == 0) busy = onewire_read(); |
| |
| onewire_reset(); |
| onewire_write(0xCC); |
| onewire_write(0xBE); |
| temp1 = onewire_read(); |
| temp2 = onewire_read(); |
| temp3 = make16(temp2, temp1); |
| 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 |
| result = (float) temp3 / 16.0; //calculation pro DS18B20 with 0.1 deg C |
| |
| |
| delay_ms(200); |
| return(result); |
| |
| } |