bmptk::hardware::i2c_interface Class Reference

i2c interface class More...

#include <i2c.h>

Inheritance diagram for bmptk::hardware::i2c_interface:

Public Types
enum	{ type = type_i2c_bus }
	identify this type as an i2c bus

Static Public Member Functions
static void	init ()
	initialize the i2c bus
static void	put_start ()
	output an I2C start condition
static void	put_stop ()
	output an I2C stop condition
static bool	get_ack ()
	get an acknowledge
static void	put_ack ()
	output an ack
static void	put_nack ()
	output a nack
static void	put_byte (unsigned char x)
	output a byte, 8 bits, MSB first
static unsigned char	get_byte ()
	get (receive) a byte, 8 bits, MSB first
static void	write (unsigned char address, unsigned const char *data, int n)
	multi-byte write transaction
static void	read (unsigned char address, unsigned char *data, int n)
	multi-byte read transaction

Detailed Description

i2c interface class

Definition at line 37 of file i2c.h.

Member Function Documentation

static bool bmptk::hardware::i2c_interface::get_ack ( )

static

get an acknowledge

This method gets (receives) an acknowledge from the slave. The method returns true when an ack was received, false when no ack (equivalent to a nack) was received. Note that this is opposite to the polarity on the bus, where a low level represents an ack.

static void bmptk::hardware::i2c_interface::read ( unsigned char  address, unsigned char *  data, int  n  )

inlinestatic

multi-byte read transaction

This method reads n bytes over the i2c bus from the 7-bit i2c address 'address' to *data.

Definition at line 92 of file i2c.h.

static void bmptk::hardware::i2c_interface::write ( unsigned char  address, unsigned const char *  data, int  n  )

inlinestatic

multi-byte write transaction

This method writes n bytes from *data over the i2c bus to the the 7-bit i2c address 'address'.

Definition at line 77 of file i2c.h.

---

The documentation for this class was generated from the following file:

• hardware/i2c.h