You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
213 lines
4.2 KiB
213 lines
4.2 KiB
#pragma once
|
|
|
|
//
|
|
// * Utilities for pin aliasing / numbering. *
|
|
//
|
|
// Designed for Arduino.
|
|
//
|
|
// If you know the pin number beforehand, you can use the macros.
|
|
//
|
|
// If you need to use a variable for pin number, use the `_n` functions.
|
|
// They are much slower, so always check if you really need them
|
|
// - and they aren't fit for things where precise timing is required.
|
|
//
|
|
|
|
#include <avr/io.h>
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#include "calc.h"
|
|
|
|
|
|
// type: pointer to port
|
|
typedef volatile uint8_t* PORT_P;
|
|
|
|
|
|
/** Pin numbering reference */
|
|
#define D0 0
|
|
#define D1 1
|
|
#define D2 2
|
|
#define D3 3
|
|
#define D4 4
|
|
#define D5 5
|
|
#define D6 6
|
|
#define D7 7
|
|
#define D8 8
|
|
#define D9 9
|
|
#define D10 10
|
|
#define D11 11
|
|
#define D12 12
|
|
#define D13 13
|
|
#define D14 14
|
|
#define D15 15
|
|
#define D16 16
|
|
#define D17 17
|
|
#define D18 18
|
|
#define D19 19
|
|
#define D20 20
|
|
#define D21 21
|
|
#define A0 14
|
|
#define A1 15
|
|
#define A2 16
|
|
#define A3 17
|
|
#define A4 18
|
|
#define A5 19
|
|
#define A6 20
|
|
#define A7 21
|
|
|
|
|
|
#define _ddr(pin) _DDR_##pin
|
|
#define _pin(pin) _PIN_##pin
|
|
#define _pn(pin) _PN_##pin
|
|
#define _port(pin) _PORT_##pin
|
|
|
|
|
|
/** Set pin direction */
|
|
#define set_dir(pin, d) set_bit( _ddr(pin), _pn(pin), d )
|
|
void set_dir_n(const uint8_t pin, const uint8_t d);
|
|
|
|
|
|
/** Configure pin as input */
|
|
#define as_input(pin) cbi( _ddr(pin), _pn(pin) )
|
|
void as_input_n(const uint8_t pin);
|
|
|
|
|
|
/** Configure pin as input, with pull-up enabled */
|
|
#define as_input_pu(pin) { as_input(pin); pin_high(pin); }
|
|
void as_input_pu_n(const uint8_t pin);
|
|
|
|
|
|
/** Configure pin as output */
|
|
#define as_output(pin) sbi( _ddr(pin), _pn(pin) )
|
|
void as_output_n(const uint8_t pin);
|
|
|
|
|
|
/** Write value to a pin */
|
|
#define set_pin(pin, v) set_bit( _port(pin), _pn(pin), v )
|
|
void set_pin_n(const uint8_t pin, const uint8_t v);
|
|
|
|
|
|
/** Write 0 to a pin */
|
|
#define pin_low(pin) cbi( _port(pin), _pn(pin) )
|
|
void pin_low_n(const uint8_t pin);
|
|
|
|
|
|
/** Write 1 to a pin */
|
|
#define pin_high(pin) sbi( _port(pin), _pn(pin) )
|
|
void pin_high_n(const uint8_t pin);
|
|
|
|
|
|
/** Toggle a pin state */
|
|
#define toggle_pin(pin) sbi( _pin(pin), _pn(pin) )
|
|
void toggle_pin_n(const uint8_t pin);
|
|
|
|
|
|
/** Read a pin value */
|
|
#define get_pin(pin) get_bit( _pin(pin), _pn(pin) )
|
|
bool get_pin_n(const uint8_t pin);
|
|
|
|
|
|
/** CHeck if pin is low */
|
|
#define is_low(pin) (get_pin(pin) == 0)
|
|
bool is_low_n(const uint8_t pin);
|
|
|
|
|
|
/** CHeck if pin is high */
|
|
#define is_high(pin) (get_pin(pin) != 0)
|
|
bool is_high_n(const uint8_t pin);
|
|
|
|
|
|
|
|
// Helper macros
|
|
|
|
#define _PORT_0 PORTD
|
|
#define _PORT_1 PORTD
|
|
#define _PORT_2 PORTD
|
|
#define _PORT_3 PORTD
|
|
#define _PORT_4 PORTD
|
|
#define _PORT_5 PORTD
|
|
#define _PORT_6 PORTD
|
|
#define _PORT_7 PORTD
|
|
#define _PORT_8 PORTB
|
|
#define _PORT_9 PORTB
|
|
#define _PORT_10 PORTB
|
|
#define _PORT_11 PORTB
|
|
#define _PORT_12 PORTB
|
|
#define _PORT_13 PORTB
|
|
#define _PORT_14 PORTC
|
|
#define _PORT_15 PORTC
|
|
#define _PORT_16 PORTC
|
|
#define _PORT_17 PORTC
|
|
#define _PORT_18 PORTC
|
|
#define _PORT_19 PORTC
|
|
#define _PORT_20 PORTC
|
|
#define _PORT_21 PORTC
|
|
|
|
#define _PIN_0 PIND
|
|
#define _PIN_1 PIND
|
|
#define _PIN_2 PIND
|
|
#define _PIN_3 PIND
|
|
#define _PIN_4 PIND
|
|
#define _PIN_5 PIND
|
|
#define _PIN_6 PIND
|
|
#define _PIN_7 PIND
|
|
#define _PIN_8 PINB
|
|
#define _PIN_9 PINB
|
|
#define _PIN_10 PINB
|
|
#define _PIN_11 PINB
|
|
#define _PIN_12 PINB
|
|
#define _PIN_13 PINB
|
|
#define _PIN_14 PINC
|
|
#define _PIN_15 PINC
|
|
#define _PIN_16 PINC
|
|
#define _PIN_17 PINC
|
|
#define _PIN_18 PINC
|
|
#define _PIN_19 PINC
|
|
#define _PIN_20 PINC
|
|
#define _PIN_21 PINC
|
|
|
|
#define _DDR_0 DDRD
|
|
#define _DDR_1 DDRD
|
|
#define _DDR_2 DDRD
|
|
#define _DDR_3 DDRD
|
|
#define _DDR_4 DDRD
|
|
#define _DDR_5 DDRD
|
|
#define _DDR_6 DDRD
|
|
#define _DDR_7 DDRD
|
|
#define _DDR_8 DDRB
|
|
#define _DDR_9 DDRB
|
|
#define _DDR_10 DDRB
|
|
#define _DDR_11 DDRB
|
|
#define _DDR_12 DDRB
|
|
#define _DDR_13 DDRB
|
|
#define _DDR_14 DDRC
|
|
#define _DDR_15 DDRC
|
|
#define _DDR_16 DDRC
|
|
#define _DDR_17 DDRC
|
|
#define _DDR_18 DDRC
|
|
#define _DDR_19 DDRC
|
|
#define _DDR_20 DDRC
|
|
#define _DDR_21 DDRC
|
|
|
|
#define _PN_0 0
|
|
#define _PN_1 1
|
|
#define _PN_2 2
|
|
#define _PN_3 3
|
|
#define _PN_4 4
|
|
#define _PN_5 5
|
|
#define _PN_6 6
|
|
#define _PN_7 7
|
|
#define _PN_8 0
|
|
#define _PN_9 1
|
|
#define _PN_10 2
|
|
#define _PN_11 3
|
|
#define _PN_12 4
|
|
#define _PN_13 5
|
|
#define _PN_14 0
|
|
#define _PN_15 1
|
|
#define _PN_16 2
|
|
#define _PN_17 3
|
|
#define _PN_18 4
|
|
#define _PN_19 5
|
|
#define _PN_20 6
|
|
#define _PN_21 7
|
|
|