198 lines
6.6 KiB
C
198 lines
6.6 KiB
C
/*
|
||
pins_arduino.h - Pin definition functions for Arduino
|
||
Part of Arduino - http://www.arduino.cc/
|
||
|
||
Copyright (c) 2007 David A. Mellis
|
||
|
||
This library is free software; you can redistribute it and/or
|
||
modify it under the terms of the GNU Lesser General Public
|
||
License as published by the Free Software Foundation; either
|
||
version 2.1 of the License, or (at your option) any later version.
|
||
|
||
This library is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
Lesser General Public License for more details.
|
||
|
||
You should have received a copy of the GNU Lesser General
|
||
Public License along with this library; if not, write to the
|
||
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
||
Boston, MA 02111-1307 USA
|
||
*/
|
||
|
||
#ifndef Pins_Arduino_h
|
||
#define Pins_Arduino_h
|
||
|
||
#include "wiring_constants.h"
|
||
|
||
#ifdef __cplusplus
|
||
extern "C" {
|
||
#endif
|
||
|
||
#include "mik32_hal_gpio.h"
|
||
#include "mik32_hal_timer32.h"
|
||
|
||
void ErrorMsgHandler(const char * msg);
|
||
|
||
// total number of pins available for initialization
|
||
#define PINS_COMMON_QTY 24
|
||
#define pinCommonQty() (PINS_COMMON_QTY)
|
||
|
||
#define SPI0_NSS_OUT_PORT GPIO_1
|
||
#define SPI0_NSS_OUT_PIN GPIO_PIN_14
|
||
#define SPI1_NSS_OUT_PORT GPIO_1
|
||
#define SPI1_NSS_OUT_PIN GPIO_PIN_4
|
||
extern bool spi0NssPinIsBlocked;
|
||
extern bool spi1NssPinIsBlocked;
|
||
extern const HAL_PinsTypeDef digitalPinToGpioPinArray[];
|
||
|
||
// analog pins
|
||
#define PIN_A0 (14)
|
||
#define PIN_A1 (15)
|
||
#define PIN_A2 (16)
|
||
#define PIN_A3 (17)
|
||
// there are D18 and D19 between them
|
||
#define PIN_A4 (20)
|
||
#define PIN_A5 (21)
|
||
static const uint8_t A0 = PIN_A0;
|
||
static const uint8_t A1 = PIN_A1;
|
||
static const uint8_t A2 = PIN_A2;
|
||
static const uint8_t A3 = PIN_A3;
|
||
static const uint8_t A4 = PIN_A4;
|
||
static const uint8_t A5 = PIN_A5;
|
||
|
||
|
||
// digital pins
|
||
// D0...D13, D18, D19
|
||
|
||
// User led and button
|
||
#define LED_BUILTIN (22)
|
||
#define BTN_BUILTIN (23)
|
||
|
||
// determines the address of the port by the board pin number to which this pin belongs on the MCU
|
||
static inline __attribute__((always_inline)) GPIO_TypeDef* digitalPinToPort(uint32_t digPinNumber)
|
||
{
|
||
if (digPinNumber >= pinCommonQty())
|
||
{
|
||
ErrorMsgHandler("digitalPinToPort(): pin number exceeds the total number of pins");
|
||
return NULL;
|
||
}
|
||
|
||
// port 2 - led and button
|
||
if (digPinNumber == LED_BUILTIN || digPinNumber == BTN_BUILTIN)
|
||
return GPIO_2;
|
||
// port 1 - board pins 7, 8, 10...13, 14(А0), 15(А1), 18,19
|
||
else if (digPinNumber == 7 || digPinNumber == 8 || (digPinNumber >= 10 && digPinNumber <= 15)
|
||
|| digPinNumber == 18 || digPinNumber == 19 || (digPinNumber == 9 && spi0NssPinIsBlocked)) // 10 pieces
|
||
return GPIO_1;
|
||
// port 0 - board pins 0...6, 9, 16(A2), 17(A3), 20(A4), 21(A5)
|
||
else
|
||
return GPIO_0;
|
||
}
|
||
// determines the pin address inside the port by the board pin number
|
||
static inline __attribute__((always_inline)) HAL_PinsTypeDef digitalPinToBitMask(uint32_t digPinNumber)
|
||
{
|
||
if (digPinNumber >= pinCommonQty())
|
||
{
|
||
ErrorMsgHandler("digitalPinToBitMask(): pin number exceeds the total number of pins");
|
||
return NOT_A_PIN;
|
||
}
|
||
|
||
// if spi is on default pin NSS_IN is needed for spi, board pin is replaced to pin NSS_OUT
|
||
if ((digPinNumber == 10) && spi1NssPinIsBlocked)
|
||
return SPI1_NSS_OUT_PIN;
|
||
else if ((digPinNumber == 9) && spi0NssPinIsBlocked)
|
||
return SPI0_NSS_OUT_PIN;
|
||
else
|
||
return digitalPinToGpioPinArray[digPinNumber];
|
||
}
|
||
// the function returns a reference to the OUTPUT address of the GPIO register
|
||
volatile uint32_t* portOutputRegister(GPIO_TypeDef* GPIO_x);
|
||
// the function returns a reference to the STATE address of the GPIO register
|
||
volatile uint32_t* portInputRegister(GPIO_TypeDef* GPIO_x);
|
||
// the function initializes additional MCU pins depending on the specified pin number
|
||
void additionalPinsInit(uint32_t PinNumber);
|
||
static inline void additionalPinsDeinit(uint32_t PinNumber){}
|
||
|
||
// UART
|
||
// available uarts quantity
|
||
#define SERIAL_PORT_QTY 2
|
||
|
||
// ADC
|
||
#define MCU_ADC_RESOLUTION 12 // bits
|
||
// determines the ADC channel number by the board pin number
|
||
uint32_t analogInputToChannelNumber(uint32_t PinNumber);
|
||
|
||
// PWM
|
||
#define PWM_FREQUENCY_MAX 1000000 // Hz
|
||
bool digitalPinHasPWM(uint8_t p);
|
||
bool digitalPinPwmIsOn(uint8_t digitalPin); // use only if digitalPinHasPWM() == true
|
||
// determines which timer the pin belongs to
|
||
TIMER32_TypeDef* pwmPinToTimer(uint32_t digPinNumber);
|
||
// determines which timer channel the pin belongs to
|
||
HAL_TIMER32_CHANNEL_IndexTypeDef pwmPinToTimerChannel(uint32_t digPinNumber);
|
||
|
||
// SPI
|
||
#define SPI_COMMON_QTY 2
|
||
|
||
#define PIN_SPI_SS 10
|
||
#define PIN_SPI_MOSI 11
|
||
#define PIN_SPI_MISO 12
|
||
#define PIN_SPI_SCK 13
|
||
static const uint8_t SS = PIN_SPI_SS;
|
||
static const uint8_t MOSI = PIN_SPI_MOSI;
|
||
static const uint8_t MISO = PIN_SPI_MISO;
|
||
static const uint8_t SCK = PIN_SPI_SCK;
|
||
|
||
#define PIN_SPI1_SS 9
|
||
#define PIN_SPI1_MOSI 5
|
||
#define PIN_SPI1_MISO 3
|
||
#define PIN_SPI1_SCK 6
|
||
static const uint8_t SS1 = PIN_SPI1_SS;
|
||
static const uint8_t MOSI1 = PIN_SPI1_MOSI;
|
||
static const uint8_t MISO1 = PIN_SPI1_MISO;
|
||
static const uint8_t SCK1 = PIN_SPI1_SCK;
|
||
|
||
// config SEL_NSS1 to replace D10 to different controller pin,
|
||
// because NSS which is D9/D10 by default is needed to spi
|
||
void spi_onBegin(uint8_t spiNum);
|
||
void spi_onEnd(uint8_t spiNum);
|
||
|
||
// I2C
|
||
#define PIN_WIRE_SDA (18)
|
||
#define PIN_WIRE_SCL (19)
|
||
#define I2C_COMMON_QTY (1)
|
||
static const uint8_t SDA = PIN_WIRE_SDA;
|
||
static const uint8_t SCL = PIN_WIRE_SCL;
|
||
// available frequencies
|
||
#define WIRE_FREQ_100K 100000
|
||
#define WIRE_FREQ_400K 400000
|
||
#define WIRE_FREQ_1000K 1000000
|
||
|
||
// interrupts
|
||
#define EXTERNAL_INTERRUPTS_QTY 8
|
||
extern uint8_t interruptInfo[EXTERNAL_INTERRUPTS_QTY][3];
|
||
// determines the board pin number by interrupt number
|
||
#define interruptToDigitalPin(interruptNum) (interruptInfo[interruptNum][0])
|
||
// determines gpio interrupt line by interrupt number
|
||
#define interruptToGpioIntLine(interruptNum) ((uint8_t)interruptInfo[interruptNum][1])
|
||
// determines gpio interrupt mux by interrupt number
|
||
#define interruptToGpioIntMux(interruptNum) ((uint8_t)interruptInfo[interruptNum][2])
|
||
// determines interrupt number by the board pin number
|
||
int8_t digitalPinToInterrupt(uint32_t digPinNumber);
|
||
// determines interrupt number by the gpio interrupt line
|
||
int8_t gpioIntLineToInterrupt(uint32_t gpioIntLine);
|
||
// determines gpio interrupt mux by the board pin number
|
||
int8_t digitalPinToGpioIntMux(uint8_t digPinNumber);
|
||
// determines gpio interrupt line by the board pin number
|
||
int8_t digitalPinToGpioIntLine(uint8_t digPinNumber);
|
||
|
||
|
||
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
|
||
#endif
|