I2C

Inter IC communication functions. More...

Functions
void	i2c_init (littleWire *lwHandle)
unsigned char	i2c_start (littleWire *lwHandle, unsigned char address7bit, unsigned char direction)
void	i2c_write (littleWire *lwHandle, unsigned char *sendBuffer, unsigned char length, unsigned char endWithStop)
void	i2c_read (littleWire *lwHandle, unsigned char *readBuffer, unsigned char length, unsigned char endWithStop)
void	i2c_updateDelay (littleWire *lwHandle, unsigned int duration)

Detailed Description

Inter IC communication functions.

Function Documentation

void i2c_init

(

littleWire *

lwHandle)

Initialize the I2C module on the Little-Wire

Returns

(none)

Definition at line 282 of file littleWire.c.

void i2c_read	(	littleWire *	lwHandle,
		unsigned char *	readBuffer,
		unsigned char	length,
		unsigned char	endWithStop
	)

Read byte(s) over i2c bus

Parameters

lwHandle	littleWire device pointer
readBuffer	Returned message array
length	Message length -> Max = 8
endWithStop	Should we send a STOP condition after this buffer? ( END_WITH_STOP or NO_STOP )

Returns

(none)

Definition at line 303 of file littleWire.c.

unsigned char i2c_start	(	littleWire *	lwHandle,
		unsigned char	address7bit,
		unsigned char	direction
	)

Start the i2c communication

Parameters

lwHandle	littleWire device pointer
address	7 bit slave address.
direction	( READ or WRITE )

Returns

1 if received ACK

Definition at line 287 of file littleWire.c.

void i2c_updateDelay	(	littleWire *	lwHandle,
		unsigned int	duration
	)

Update i2c signal delay amount. Tune if neccessary to fit your requirements.

Parameters

lwHandle	littleWire device pointer
duration	Delay amount

Returns

(none)

Definition at line 320 of file littleWire.c.

void i2c_write	(	littleWire *	lwHandle,
		unsigned char *	sendBuffer,
		unsigned char	length,
		unsigned char	endWithStop
	)

Send byte(s) over i2c bus

Parameters

lwHandle	littleWire device pointer
sendBuffer	Message array to send
length	Message length -> Max = 4
endWithStop	Should we send a STOP condition after this buffer? ( END_WITH_STOP or NO_STOP )

Returns

(none)

Definition at line 298 of file littleWire.c.