164 lines
5.4 KiB
C
164 lines
5.4 KiB
C
/*
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pins_arduino.h - Pin definition functions for Arduino
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Part of Arduino - http://www.arduino.cc/
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Copyright (c) 2007 David A. Mellis
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General
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Public License along with this library; if not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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Boston, MA 02111-1307 USA
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*/
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#ifndef Pins_Arduino_h
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#define Pins_Arduino_h
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#include "wiring_constants.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "mik32_hal_gpio.h"
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#include "mik32_hal_timer32.h"
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// total number of pins available for initialization
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#define PINS_COMMON_QTY 24
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#define pinCommonQty() (PINS_COMMON_QTY)
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extern bool spi0NssPinIsBlocked;
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extern bool spi1NssPinIsBlocked;
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// analog pins
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#define PIN_A0 (14)
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#define PIN_A1 (15)
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#define PIN_A2 (16)
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#define PIN_A3 (17)
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// there are D18 and D19 between them
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#define PIN_A4 (20)
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#define PIN_A5 (21)
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static const uint8_t A0 = PIN_A0;
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static const uint8_t A1 = PIN_A1;
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static const uint8_t A2 = PIN_A2;
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static const uint8_t A3 = PIN_A3;
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static const uint8_t A4 = PIN_A4;
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static const uint8_t A5 = PIN_A5;
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// digital pins
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// D0...D13, D18, D19
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// User led and button
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#define LED_BUILTIN (22)
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#define BTN_BUILTIN (23)
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// determines the port address by the board pin number to which this pin belongs on the MCU
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GPIO_TypeDef* digitalPinToPort(uint32_t digPinNumber);
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// determines the pin address inside the port by the board pin number
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HAL_PinsTypeDef digitalPinToBitMask(uint32_t digPinNumber);
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// the function returns a reference to the OUTPUT address of the GPIO register
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volatile uint32_t* portOutputRegister(GPIO_TypeDef* GPIO_x);
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// the function returns a reference to the STATE address of the GPIO register
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volatile uint32_t* portInputRegister(GPIO_TypeDef* GPIO_x);
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// the function initializes additional MCU pins depending on the specified pin number
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void additionalPinsInit(uint32_t PinNumber);
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static inline void additionalPinsDeinit(uint32_t PinNumber){}
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// UART
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// available uarts quantity
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#define SERIAL_PORT_QTY 2
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// ADC
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#define MCU_ADC_RESOLUTION 12 // bits
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// determines the ADC channel number by the board pin number
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uint32_t analogInputToChannelNumber(uint32_t PinNumber);
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// PWM
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#define PWM_FREQUENCY_MAX 1000000 // Hz
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static inline __attribute__((always_inline)) bool digitalPinHasPWM(uint8_t p)
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{
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// if spi is in use D9 or D10 cannot work as pwm
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if (p == 3 || p == 5 || p == 6 || (p >= 11 && p <= 13) || ((p == 9) && !spi0NssPinIsBlocked) || ((p == 10) && !spi1NssPinIsBlocked))
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return true;
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return false;
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}
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// return true if digitalPin configured as pwm
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bool digitalPinPwmIsOn(uint8_t digitalPin);
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// determines which timer the pin belongs to
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TIMER32_TypeDef* pwmPinToTimer(uint32_t digPinNumber);
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// determines which timer channel the pin belongs to
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HAL_TIMER32_CHANNEL_IndexTypeDef pwmPinToTimerChannel(uint32_t digPinNumber);
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// SPI
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#define SPI_COMMON_QTY 2
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#define PIN_SPI_SS 10
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#define PIN_SPI_MOSI 11
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#define PIN_SPI_MISO 12
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#define PIN_SPI_SCK 13
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static const uint8_t SS = PIN_SPI_SS;
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static const uint8_t MOSI = PIN_SPI_MOSI;
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static const uint8_t MISO = PIN_SPI_MISO;
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static const uint8_t SCK = PIN_SPI_SCK;
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#define PIN_SPI1_SS 9
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#define PIN_SPI1_MOSI 5
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#define PIN_SPI1_MISO 3
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#define PIN_SPI1_SCK 6
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static const uint8_t SS1 = PIN_SPI1_SS;
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static const uint8_t MOSI1 = PIN_SPI1_MOSI;
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static const uint8_t MISO1 = PIN_SPI1_MISO;
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static const uint8_t SCK1 = PIN_SPI1_SCK;
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// config SEL_NSS1 to replace D10 to different controller pin,
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// because NSS which is D9/D10 by default is needed to spi
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void spi_onBegin(uint8_t spiNum);
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void spi_onEnd(uint8_t spiNum);
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// I2C
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#define PIN_WIRE_SDA (18)
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#define PIN_WIRE_SCL (19)
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#define I2C_COMMON_QTY (1)
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static const uint8_t SDA = PIN_WIRE_SDA;
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static const uint8_t SCL = PIN_WIRE_SCL;
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// available frequencies
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#define WIRE_FREQ_100K 100000
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#define WIRE_FREQ_400K 400000
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#define WIRE_FREQ_1000K 1000000
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// interrupts
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#define EXTERNAL_INTERRUPTS_QTY 8
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extern uint8_t interruptInfo[EXTERNAL_INTERRUPTS_QTY][3];
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// determines the board pin number by interrupt number
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#define interruptToDigitalPin(interruptNum) (interruptInfo[interruptNum][0])
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// determines gpio interrupt line by interrupt number
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#define interruptToGpioIntLine(interruptNum) ((uint8_t)interruptInfo[interruptNum][1])
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// determines gpio interrupt mux by interrupt number
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#define interruptToGpioIntMux(interruptNum) ((uint8_t)interruptInfo[interruptNum][2])
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// determines interrupt number by the board pin number
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int8_t digitalPinToInterrupt(uint32_t digPinNumber);
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// determines interrupt number by the gpio interrupt line
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int8_t gpioIntLineToInterrupt(uint32_t gpioIntLine);
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// determines gpio interrupt mux by the board pin number
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int8_t digitalPinToGpioIntMux(uint8_t digPinNumber);
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// determines gpio interrupt line by the board pin number
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int8_t digitalPinToGpioIntLine(uint8_t digPinNumber);
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#ifdef __cplusplus
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}
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#endif
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#endif
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