Fast Pin I/O

Classes
class	DigitalPin< PinNumber >
	Fast digital port I/O. More...
class	pin_map_t
	struct for mapping digital pins More...

Functions
static void	badPinCheck (uint8_t pin)
void	badPinNumber (void)
static void	fastBitWriteSafe (volatile uint8_t *address, uint8_t bit, bool level)
static bool	fastDigitalRead (uint8_t pin)
static void	fastDigitalToggle (uint8_t pin)
static void	fastDigitalWrite (uint8_t pin, bool level)
static void	fastPinConfig (uint8_t pin, bool mode, bool level)
static void	fastPinMode (uint8_t pin, bool mode)

Variables
static const uint8_t	digitalPinCount = sizeof(pinMap)/sizeof(pin_map_t)

Detailed Description

Fast Digital I/O functions and template class.

Function Documentation

static void badPinCheck ( uint8_t  pin )

inlinestatic

Check for valid pin number

Parameters

[in]

pin

Number of pin to be checked.

Definition at line 458 of file DigitalPin.h.

void badPinNumber

(

void

)

generate bad pin number error

static void fastBitWriteSafe ( volatile uint8_t *  address, uint8_t  bit, bool  level  )

inlinestatic

fast write helper

Parameters

[in]	address	I/O register address
[in]	bit	bit number to write
[in]	level	value for bit

Definition at line 470 of file DigitalPin.h.

static bool fastDigitalRead ( uint8_t  pin )

inlinestatic

read pin value

Parameters

[in]

pin

Arduino pin number

Returns

value read

Definition at line 491 of file DigitalPin.h.

static void fastDigitalToggle ( uint8_t  pin )

inlinestatic

toggle a pin

Parameters

[in]

pin

Arduino pin number

If the pin is in output mode toggle the pin level. If the pin is in input mode toggle the state of the 20K pullup.

Definition at line 503 of file DigitalPin.h.

static void fastDigitalWrite ( uint8_t  pin, bool  level  )

inlinestatic

Set pin value

Parameters

[in]	pin	Arduino pin number
[in]	level	value to write

Definition at line 519 of file DigitalPin.h.

static void fastPinConfig ( uint8_t  pin, bool  mode, bool  level  )

inlinestatic

set pin configuration

Parameters

[in]	pin	Arduino pin number
[in]	mode	If true set output mode else input mode
[in]	level	If mode is output, set level high/low. If mode is input, enable or disable the pin's 20K pullup.

Definition at line 545 of file DigitalPin.h.

static void fastPinMode ( uint8_t  pin, bool  mode  )

inlinestatic

set pin mode

Parameters

[in]	pin	Arduino pin number
[in]	mode	if true set output mode else input mode

fastPinMode does not enable or disable the 20K pullup for input mode.

Definition at line 531 of file DigitalPin.h.

Variable Documentation

const uint8_t digitalPinCount = sizeof(pinMap)/sizeof(pin_map_t)

static

count of pins

Definition at line 448 of file DigitalPin.h.