simple_float ds18b20_read_temperature_simple(void) {
one_wire_reset_pulse();
one_wire_write_byte(0xCC); // Skip ROM
one_wire_write_byte(0xBE); // Read scratchpad
return ds18b20_decode_temperature();
}
void ds18b20_set_precission(uint8_t p) {
precission = p;
one_wire_reset_pulse();
one_wire_write_byte(0xCC); // Skip ROM
one_wire_write_byte(0x4E); // Write scratchpad
one_wire_write_byte(0x4B);
one_wire_write_byte(0x46);
// set precission
one_wire_write_byte(0x1F | (precission << 5));
}
void one_wire_write(one_wire_t* ow, const void* data, one_wire_size_t size)
{
one_wire_size_t i = 0;
for(; i < size; i ++){
one_wire_write_byte(ow, ((const uint8_t*)data)[i]);
}
}
simple_float ds18b20_read_temperature(one_wire_device device) {
one_wire_reset_pulse();
one_wire_match_rom(device); // Match ROM
one_wire_write_byte(0xBE); // Read scratchpad
return ds18b20_decode_temperature();
}
void ds18b20_convert_temperature(one_wire_device device) {
one_wire_reset_pulse();
one_wire_match_rom(device); // Match ROM
one_wire_write_byte(0x44); // Convert temperature
}
void ds18b20_convert_temperature_simple(void) {
one_wire_reset_pulse();
one_wire_write_byte(0xCC); // Skip ROM
one_wire_write_byte(0x44); // Convert temperature
}
