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  • /* Teensyduino Core Library
     * http://www.pjrc.com/teensy/
     * Copyright (c) 2013 PJRC.COM, LLC.
     *
     * Permission is hereby granted, free of charge, to any person obtaining
     * a copy of this software and associated documentation files (the
     * "Software"), to deal in the Software without restriction, including
     * without limitation the rights to use, copy, modify, merge, publish,
     * distribute, sublicense, and/or sell copies of the Software, and to
     * permit persons to whom the Software is furnished to do so, subject to
     * the following conditions:
     *
     * 1. The above copyright notice and this permission notice shall be 
     * included in all copies or substantial portions of the Software.
     *
     * 2. If the Software is incorporated into a build system that allows 
     * selection among a list of target devices, then similar target
     * devices manufactured by PJRC.COM must be included in the list of
     * target devices and selectable in the same manner.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     * SOFTWARE.
     */
    
    #ifndef pins_macros_for_arduino_compatibility_h
    #define pins_macros_for_arduino_compatibility_h
    
    #include <stdint.h>
    
    const static uint8_t A0 = 14;
    const static uint8_t A1 = 15;
    const static uint8_t A2 = 16;
    const static uint8_t A3 = 17;
    const static uint8_t A4 = 18;
    const static uint8_t A5 = 19;
    const static uint8_t A6 = 20;
    const static uint8_t A7 = 21;
    const static uint8_t A8 = 22;
    const static uint8_t A9 = 23;
    const static uint8_t A10 = 34;
    const static uint8_t A11 = 35;
    const static uint8_t A12 = 36;
    const static uint8_t A13 = 37;
    
    const static uint8_t SS = 10;
    const static uint8_t MOSI = 11;
    const static uint8_t MISO = 12;
    const static uint8_t SCK = 13;
    const static uint8_t LED_BUILTIN = 13;
    const static uint8_t SDA = 18;
    const static uint8_t SCL = 19;
    
    
    #define NUM_DIGITAL_PINS 34
    #define NUM_ANALOG_INPUTS 14
    
    #define analogInputToDigitalPin(p) (((p) < 10) ? (p) + 14 : -1)
    #define digitalPinHasPWM(p) (((p) >= 3 && (p) <= 6) || (p) == 9 || (p) == 10 || ((p) >= 20 && (p) <= 23))
    
    
    struct digital_pin_bitband_and_config_table_struct {
            volatile uint32_t *reg;
            volatile uint32_t *config;
    };
    extern const struct digital_pin_bitband_and_config_table_struct digital_pin_to_info_PGM[];
    
    // compatibility macros
    #define digitalPinToPort(pin) (pin)
    #define digitalPinToBitMask(pin) (1)
    #define portOutputRegister(pin) ((volatile uint8_t *)(digital_pin_to_info_PGM[(pin)].reg + 0))
    #define portSetRegister(pin)    ((volatile uint8_t *)(digital_pin_to_info_PGM[(pin)].reg + 32))
    #define portClearRegister(pin)  ((volatile uint8_t *)(digital_pin_to_info_PGM[(pin)].reg + 64))
    #define portToggleRegister(pin) ((volatile uint8_t *)(digital_pin_to_info_PGM[(pin)].reg + 96))
    #define portInputRegister(pin)  ((volatile uint8_t *)(digital_pin_to_info_PGM[(pin)].reg + 128))
    #define portModeRegister(pin)   ((volatile uint8_t *)(digital_pin_to_info_PGM[(pin)].reg + 160))
    #define portConfigRegister(pin) ((volatile uint32_t *)(digital_pin_to_info_PGM[(pin)].config))
    
    
    #define digitalPinToPortReg(pin) (portOutputRegister(pin))
    #define digitalPinToBit(pin) (1)
    
    
    #define NOT_ON_TIMER 0
    static inline uint8_t digitalPinToTimer(uint8_t) __attribute__((always_inline, unused));
    static inline uint8_t digitalPinToTimer(uint8_t pin)
    {
    
        if (pin >= 3 && pin <= 6) return pin - 2;
        if (pin >= 9 && pin <= 10) return pin - 4;
        if (pin >= 20 && pin <= 23) return pin - 13;
        return NOT_ON_TIMER;