ds18x20.h

#ifndef DS18X20_H
#define DS18X20_H

#include <inttypes.h>
#include "pins.h"

#define DS18X20_PARASITE_POWER

// DS18X20 commands
#define DS18X20_CMD_SEARCH_ROM		0xF0
#define DS18X20_CMD_READ_ROM		0x33
#define DS18X20_CMD_MATCH_ROM		0x55
#define DS18X20_CMD_SKIP_ROM		0xCC
#define DS18X20_CMD_ALARM_SEARCH	0xEC
#define DS18X20_CMD_CONVERT			0x44
#define DS18X20_CMD_WRITE_SCRATCH	0x4E
#define DS18X20_CMD_READ_SCRATCH	0xBE
#define DS18X20_CMD_COPY_SCRATCH	0x48
#define DS18X20_CMD_RECALL_EE		0xB8
#define DS18X20_CMD_READ_POWER		0xB4

#define DS18S20_FAMILY_CODE			0x10
#define DS18B20_FAMILY_CODE			0x28

#define DS18X20_MAX_DEV				2
#define DS18X20_SCRATCH_LEN			9
#define DS18X20_SCRATCH_TEMP_LEN	2
#define DS18X20_ID_LEN				8

typedef union {
	int16_t temp;
	struct {
		uint8_t sp[DS18X20_SCRATCH_TEMP_LEN];
		uint8_t id[DS18X20_ID_LEN];
	};
} ds18x20Dev;

void ds18x20SearchDevices(void);
uint8_t ds18x20Process(void);
int16_t ds18x20GetTemp(uint8_t num);
uint8_t ds18x20GetDevCount(void);

#endif // DS18X20_H