ds18_internal.h File Reference

Internal addresses, registers, constants for DS1822 and DS18B20 temperature sensors. More...

Detailed Description

Internal addresses, registers, constants for DS1822 and DS18B20 temperature sensors.

Author

Frits Kuipers frits.nosp@m..kui.nosp@m.pers@.nosp@m.gmai.nosp@m.l.com

Leandro Lanzieri leand.nosp@m.ro.l.nosp@m.anzie.nosp@m.ri@h.nosp@m.aw-ha.nosp@m.mbur.nosp@m.g.de

Definition in file ds18_internal.h.

#include "time_units.h"

Include dependency graph for ds18_internal.h:

Go to the source code of this file.

ds18 commands
#define	DS18_CMD_CONVERT   (0x44)
#define	DS18_CMD_RSCRATCHPAD   (0xbe)
#define	DS18_CMD_WRITESCRATCHPAD   (0x4e)
#define	DS18_CMD_COPYSCRATCHPAD   (0x48)
#define	DS18_CMD_RECALLE   (0xb8)
#define	DS18_CMD_RPWRSPPLY   (0xb4)
#define	DS18_CMD_SEARCHROM   (0xf0)
#define	DS18_CMD_READROM   (0x33)
#define	DS18_CMD_MATCHROM   (0x55)
#define	DS18_CMD_SEARCHROM   (0xf0)
#define	DS18_CMD_ALARMSEARCH   (0xec)
#define	DS18_CMD_SKIPROM   (0xcc)

ds18 delays
#define	DS18_DELAY_RESET   (480U)
#define	DS18_DELAY_PRESENCE   (60U)
#define	DS18_DELAY_SLOT   (60U)
#define	DS18_SAMPLE_TIME   (10U)
#define	DS18_DELAY_CONVERT   (750U * US_PER_MS)
#define	DS18_DELAY_RW_PULSE   (1U)
#define	DS18_DELAY_R_RECOVER   (DS18_DELAY_SLOT - DS18_SAMPLE_TIME)