find_sensor.c

来自「Source code for driving RFM01 fm radio r」· C语言 代码 · 共 15 行

#include "./ds18x20.h"

/* find DS18X20 Sensors on 1-Wire-Bus
   input/ouput: diff is the result of the last rom-search
   output: id is the rom-code of the sensor found */
void DS18X20_find_sensor(uint8_t *diff, uint8_t id[])
{
	for (;;) {
		*diff = OW_rom_search( *diff, &id[0] );
		if ( *diff==OW_PRESENCE_ERR || *diff==OW_DATA_ERR ||
		  *diff == OW_LAST_DEVICE ) return;
		if ( id[0] == DS18B20_ID || id[0] == DS18S20_ID ) return;
	}
}