GPIO

GPIO library functions with Arduino-like syntax. More...

Functions
void	digitalWrite (littleWire *lwHandle, unsigned char pin, unsigned char state)
void	pinMode (littleWire *lwHandle, unsigned char pin, unsigned char mode)
unsigned char	digitalRead (littleWire *lwHandle, unsigned char pin)
void	internalPullup (littleWire *lwHandle, unsigned char pin, unsigned char state)

Detailed Description

GPIO library functions with Arduino-like syntax.

Function Documentation

unsigned char digitalRead	(	littleWire *	lwHandle,
		unsigned char	pin
	)

Read pin value

Parameters

lwHandle	littleWire device pointer
pin	Pin name (PIN1 , PIN2 , PIN3 or PIN4 )

Returns

Pin state (HIGH or LOW)

Definition at line 189 of file littleWire.c.

void digitalWrite	(	littleWire *	lwHandle,
		unsigned char	pin,
		unsigned char	state
	)

Set pin value

Parameters

lwHandle	littleWire device pointer
pin	Pin name (PIN1 , PIN2 , PIN3 or PIN4 )
state	Pin state (HIGH or LOW)

Returns

(none)

Definition at line 171 of file littleWire.c.

void internalPullup	(	littleWire *	lwHandle,
		unsigned char	pin,
		unsigned char	state
	)

Sets the state of the internal pullup resistor.
Call this function after you assign the pin as an input.

Parameters

lwHandle	littleWire device pointer
pin	Pin name (PIN1 , PIN2 , PIN3 or PIN4 ) state (ENABLE or DISABLE )

Returns

(none)

Definition at line 196 of file littleWire.c.

void pinMode	(	littleWire *	lwHandle,
		unsigned char	pin,
		unsigned char	mode
	)

Set pin as input/output

Parameters

lwHandle	littleWire device pointer
pin	Pin name (PIN1 , PIN2 , PIN3 or PIN4 )
mode	Mode of pin (INPUT or OUTPUT)

Returns

(none)

Definition at line 180 of file littleWire.c.