i2c.h File Reference

Communicates with sensors on the I2C bus. More...

#include "sensor_common.h"

Go to the source code of this file.

Classes
struct	MblMwI2cReadParameters
	Parameters required for an i2c read. More...

Functions
METAWEAR_API MblMwDataSignal *	mbl_mw_i2c_get_data_signal (MblMwMetaWearBoard *board, uint8_t length, uint8_t id)
	Retrieves the data signal representing i2c data. More...
METAWEAR_API void	mbl_mw_i2c_write (const MblMwMetaWearBoard *board, uint8_t device_addr, uint8_t register_addr, const uint8_t *value, uint8_t length)
	Writes data via the i2c bus. More...

Detailed Description

Communicates with sensors on the I2C bus.

Copyright

MbientLab License (LICENSE.md)

Function Documentation

mbl_mw_i2c_get_data_signal()

METAWEAR_API MblMwDataSignal* mbl_mw_i2c_get_data_signal	(	MblMwMetaWearBoard *	board,
		uint8_t	length,
		uint8_t	id
	)

Retrieves the data signal representing i2c data.

The data signal is identified by the id value and if the id is not present, a new data signal will be created using the length parameter.

Parameters

board	Board the i2c bus resides on
length	Number of bytes to read
id	Numerical value identifying the data

Returns

Pointer to the i2c data signal

mbl_mw_i2c_write()

METAWEAR_API void mbl_mw_i2c_write	(	const MblMwMetaWearBoard *	board,
		uint8_t	device_addr,
		uint8_t	register_addr,
		const uint8_t *	value,
		uint8_t	length
	)

Writes data via the i2c bus.

Parameters

board	Board the i2c bus resides on
device_addr	Device to write to
register_addr	Address of the register to write
value	Payload, as a byte array
length	Number of bytes