module_ow_bus.h File Reference

Module for communication with sensors in One-Wire bus. Supported modes: More...

#include "sensor.h"

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Macros
#define	OW_Q_FORMAT_M   0x0C
#define	OW_Q_FORMAT_N   0x04

Variables
SensorInterface_t	owBus

Detailed Description

Module for communication with sensors in One-Wire bus. Supported modes:

Date

18. 12. 2020

Author

Juraj Dudak

• HW mode. supported platforms: STM32
• SIMULATION mode. Ca run as CLI application.

Configuration of this module: None

#Properties of OW module

Interface specification:

• sensor type: SENSOR_TYPE_TEMPERATURE (0x04)
• format of measured value: FORMAT_META_FMT_Q
• data length of measured value: 4B (FORMAT_META_FMT_SPECIAL_TIME) or 6B (FORMAT_META_FMT_SPECIAL_BCD)
• Q format parameters: Q_FORMAT_NONE

Example of RTC record format stored in META area:

Sensor ID	TYPE	META_FORMAT	Q_m	Q_n
0 .. 7B	8B	9B	10B	11B
0x28xxxxxxxxxxxxxx	0x05	0x62 => FORMAT_META_FMT_Q + FORMAT_META_LENGTH_2B	0xC	0x4