Detailed Description

Class base definitions for defining fast pin access.

Definition in file fastpin.h.

#include "FastLED.h"
#include "led_sysdefs.h"
#include <stddef.h>

Classes
class	Selectable
	Abstract class for "selectable" things. More...

class	Pin
	Naive fallback solution for low level pin access. More...

class	OutputPin
	I/O pin initially set to OUTPUT. More...

class	InputPin
	I/O pin initially set to INPUT. More...

class	FastPin< PIN >
	The simplest level of Pin class. More...

class	FastPinBB< PIN >
	FastPin implementation for bit-banded access. More...

struct	__FL_PORT_INFO< port >
	Utility template for tracking down information about pins and ports. More...

Macros
#define	NO_PIN 255
	Constant for "not a pin".

#define	_FL_DEFINE_PORT(L, BASE)
	Macro to create the instantiations for defined ports.

#define	_FL_DEFINE_PORT3(L, LC, BASE)
	Macro to create the instantiations for defined ports.

Typedefs
typedef volatile uint32_t &	reg32_t
	Reference to a 32-bit register, volatile.

typedef volatile uint32_t *	ptr_reg32_t
	Pointer to a 32-bit register, volatile.

Macro Definition Documentation

◆ _FL_DEFINE_PORT

#define _FL_DEFINE_PORT	(	L,
		BASE
	)

Value:

    template<> struct __FL_PORT_INFO<L> { \
    static bool hasPort() { return 1; } \
    static const char *portName() { return #L; } \
    typedef BASE __t_baseType;  \
    static const void *portAddr() { return (void*)&__t_baseType::r(); } };

Macro to create the instantiations for defined ports.

We're going to abuse this later for auto discovery of pin/port mappings for new variants.
Use this for ports that are numeric in nature, e.g. GPIO0, GPIO1, etc.

Parameters

L	the number of the port
BASE	the data type for the register

Definition at line 333 of file fastpin.h.

◆ _FL_DEFINE_PORT3

#define _FL_DEFINE_PORT3	(	L,
		LC,
		BASE
	)

Value:

    template<> struct __FL_PORT_INFO<LC> { \
    static bool hasPort() { return 1; } \
    static const char *portName() { return #L; } \
    typedef BASE __t_baseType;  \
    static const void *portAddr() { return (void*)&__t_baseType::r(); } };

Macro to create the instantiations for defined ports.

We're going to abuse this later for auto discovery of pin/port mappings for new variants.
Use this for ports that are letters. The first parameter will be the letter, the second parameter will be an integer/counter of some kind. This is because attempts to turn macro parameters into character constants break in some compilers.

Parameters

L	the letter of the port
LC	an integer counter
BASE	the data type for the register

Definition at line 349 of file fastpin.h.

◆ NO_PIN

#define NO_PIN 255

Constant for "not a pin".

Todo:: Unused, remove?

Definition at line 19 of file fastpin.h.

Typedef Documentation

◆ ptr_reg32_t

typedef volatile uint32_t* ptr_reg32_t

Pointer to a 32-bit register, volatile.

Definition at line 313 of file fastpin.h.

◆ reg32_t

typedef volatile uint32_t& reg32_t

Reference to a 32-bit register, volatile.

Definition at line 312 of file fastpin.h.