i2cm.h File Reference

Define functions to access I2C master peripheral. More...

Enumerations
enum	{   I2CM_SPEED_100KHZ = (0x01 << 4), I2CM_SPEED_400KHZ = (0x00 << 4), I2CM_SPEED_800KHZ = (0x02 << 4), I2CM_SPEEC_1000KHZ = (0x03 << 4),   I2CM_SPEEC_2000KHZ = (0x04 << 4) }
	Defines the BCM I2C master driver. More...
enum	{ I2CM_SUCCESS, I2CM_OP_FAILED, I2CM_BUSY }
	Driver status. More...
enum	{ I2CM_SCL_SPEED_MAX = 10, I2CM_SCL_SPEED_MIN = 255 }
	SCL speed is governed by a counter that counts the number of cycles of the reference clock which is always 24 MHz. More...

Functions
void	i2cm_init (void)
	I2C master initialization routine.
void	i2cm_setSpeed (UINT8 divisor)
	Allows the I2C speed to be selected. More...
void	i2cm_setTransactionSpeed (void)
	Internal helper function to set speed.
UINT8	i2cm_getSpeed (void)
	Gets the current speed set up by the application. More...
UINT8	i2cm_write (UINT8 *data, UINT16 length, UINT8 slave)
	Writes data to the I2C slave. More...
UINT8	i2cm_read (UINT8 *data, UINT16 length, UINT8 slave)
	Reads data from the I2C slave. More...
UINT8	i2cm_comboRead (UINT8 *secondTranBuf, UINT16 secondTranCount, UINT8 *firstTranBuf, UINT8 firstTranCount, UINT8 slaveAdr)
	Do a combination write, followed by a repeated start followed by a read transaction. More...
UINT8	i2cm_comboWrite (UINT8 *secondTranBuf, UINT16 secondTranCount, UINT8 *firstTranBuf, UINT8 firstTranCount, UINT8 slaveAdr)
	Do a combination write, followed by a repeated start followed by a write transaction. More...

Detailed Description

Define functions to access I2C master peripheral.