forked from Elron_dev/elbear_arduino_bsp
128 lines
3.9 KiB
C
128 lines
3.9 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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#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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#include "wiring_constants.h"
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extern bool spiNssPinIsBlocked;
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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 address of the port 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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// оtotal number of pins available for initialization
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uint16_t pinCommonQty(void);
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// the function returns a reference to the OUTPUT address of the GPIO register
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uint32_t* portOutputRegister(GPIO_TypeDef* GPIO_x);
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// ADC
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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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bool digitalPinHasPWM(uint8_t p);
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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 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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// config SEL_NSS1 to replace D10 to different controller pin,
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// because pin 1.3 which is D10 by default is needed to spi
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inline void blockSpiPin(void)
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{
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spiNssPinIsBlocked = true;
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}
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inline void unblockSpiPin(void)
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{
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spiNssPinIsBlocked = false;
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}
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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_NUM (1) // i2c number 0 or 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_NUM_INTERRUPTS 7
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// determines the board pin number by interrupt number
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uint32_t interruptToDigitalPin(uint8_t interruptNum);
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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 gpio interrupt line by interrupt number
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uint32_t interruptToGpioIntLine(uint8_t interruptNum);
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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 interrupt number
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uint32_t interruptToGpioIntMux(uint8_t interruptNum);
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#ifdef __cplusplus
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}
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#endif
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#endif
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