в модуле времени добавила функцию получения тиков. в папке variants добавила функции для работы с прерываниями. добавлена рыба библиотеки softserial

cores/arduino/wiring_time.c

@@ -39,6 +39,11 @@ void SysTick_Init(void)
     HAL_SCR1_Timer_Init(&hscr1_timer); // Ticks are 32 MHz
 }
 
+uint64_t SysTick_GetTicks(void)
+{
+  return TICKS_IN_SYSTIMER;
+}
+
 // number of microseconds since start of the program
 uint32_t micros(void)
 {

cores/arduino/wiring_time.h

@@ -30,6 +30,12 @@ extern "C" {
  */
 void SysTick_Init(void);
 
+/**
+ * \brief Returns the number of ticks since the Arduino board began running the current program.
+
+ * \return Number of ticks since the program started
+ */
+uint64_t SysTick_GetTicks(void);
 
 /**
  * \brief Returns the number of milliseconds since the Arduino board began running the current program.

libraries/SoftwareSerial/keywords.txt

@@ -0,0 +1,30 @@
+#######################################
+# Syntax Coloring Map for SoftwareSerial
+# (formerly NewSoftSerial)
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+SoftwareSerial	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+begin	KEYWORD2
+end	KEYWORD2
+read	KEYWORD2
+write	KEYWORD2
+available	KEYWORD2
+isListening	KEYWORD2
+overflow	KEYWORD2
+flush	KEYWORD2
+listen	KEYWORD2
+peek	KEYWORD2
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+

libraries/SoftwareSerial/library.properties

@@ -0,0 +1,10 @@
+name=SoftwareSerial
+version=0.0.0
+author=Arduino
+maintainer=Arduino <info@arduino.cc>
+sentence=Enables serial communication on any digital pin.
+paragraph=The SoftwareSerial library has been developed to allow serial communication on any digital pin of the board, using software to replicate the functionality of the hardware UART. It is possible to have multiple software serial ports with speeds up to 115200 bps. 
+category=Communication
+url=http://www.arduino.cc/en/Reference/SoftwareSerial
+architectures=MIK32_Amur
+

libraries/SoftwareSerial/src/SoftwareSerial.cpp

@@ -0,0 +1,486 @@
+/*
+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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+The latest version of this library can always be found at
+http://arduiniana.org.
+*/
+
+// When set, _DEBUG co-opts pins 11 and 13 for debugging with an
+// oscilloscope or logic analyzer.  Beware: it also slightly modifies
+// the bit times, so don't rely on it too much at high baud rates
+#define _DEBUG 0
+#define _DEBUG_PIN1 11
+#define _DEBUG_PIN2 13
+
+#define MAX_SOFT_SERIAL_SPEED 115200
+#define MIN_SOFT_SERIAL_SPEED 300
+// 
+// Includes
+// 
+// #include <avr/pgmspace.h>
+#include <Arduino.h>
+#include <SoftwareSerial.h>
+#include "mik32_hal_irq.h" 
+#include "mik32_hal_gpio.h"
+
+//
+// Statics
+//
+SoftwareSerial *SoftwareSerial::active_object = 0;
+uint8_t SoftwareSerial::_receive_buffer[_SS_MAX_RX_BUFF]; 
+volatile uint8_t SoftwareSerial::_receive_buffer_tail = 0;
+volatile uint8_t SoftwareSerial::_receive_buffer_head = 0;
+
+//
+// Debugging
+//
+// This function generates a brief pulse
+// for debugging or measuring on an oscilloscope.
+// #if _DEBUG
+// inline void DebugPulse(uint8_t pin, uint8_t count)
+// {
+//   volatile uint8_t *pport = portOutputRegister(digitalPinToPort(pin));
+
+//   uint8_t val = *pport;
+//   while (count--)
+//   {
+//     *pport = val | digitalPinToBitMask(pin);
+//     *pport = val;
+//   }
+// }
+// #else
+// inline void DebugPulse(uint8_t, uint8_t) {}
+// #endif
+
+//
+// Private methods
+//
+
+/* static */ 
+inline void SoftwareSerial::tunedDelay(uint16_t delayTicks)
+{ 
+  uint64_t startTicks = SysTick_GetTicks();
+  while ((SysTick_GetTicks() - startTicks) < delayTicks)
+    ;
+}
+
+// This function sets the current object as the "listening"
+// one and returns true if it replaces another 
+bool SoftwareSerial::listen()
+{
+  if (!_rx_delay_stopbit)
+    return false;
+
+  if (active_object != this)
+  {
+    if (active_object)
+      active_object->stopListening();
+
+    _buffer_overflow = false;
+    _receive_buffer_head = _receive_buffer_tail = 0;
+    active_object = this;
+
+    setRxIntMsk(true);
+    return true;
+  }
+
+  return false;
+}
+
+// Stop listening. Returns true if we were actually listening.
+bool SoftwareSerial::stopListening()
+{
+  if (active_object == this)
+  {
+    setRxIntMsk(false);
+    active_object = NULL;
+    return true;
+  }
+  return false;
+}
+
+//
+// The receive routine called by the interrupt handler
+//
+void SoftwareSerial::recv()
+{
+
+// #if GCC_VERSION < 40302
+// // Work-around for avr-gcc 4.3.0 OSX version bug
+// // Preserve the registers that the compiler misses
+// // (courtesy of Arduino forum user *etracer*)
+//   asm volatile(
+//     "push r18 \n\t"
+//     "push r19 \n\t"
+//     "push r20 \n\t"
+//     "push r21 \n\t"
+//     "push r22 \n\t"
+//     "push r23 \n\t"
+//     "push r26 \n\t"
+//     "push r27 \n\t"
+//     ::);
+// #endif  
+
+  // uint8_t data = 0;
+
+  // // If RX line is high, then we don't see any start bit
+  // // so interrupt is probably not for us
+  // if (_inverse_logic ? rx_pin_read() : !rx_pin_read())
+  // {
+  //   // Disable further interrupts during reception, this prevents
+  //   // triggering another interrupt directly after we return, which can
+  //   // cause problems at higher baudrates.
+  //   setRxIntMsk(false);
+
+  //   // Wait approximately 1/2 of a bit width to "center" the sample
+  //   tunedDelay(_rx_delay_centering);
+  //   DebugPulse(_DEBUG_PIN2, 1);
+
+  //   // Read each of the 8 bits
+  //   for (uint8_t i=8; i > 0; --i)
+  //   {
+  //     tunedDelay(_rx_delay_intrabit);
+  //     data >>= 1;
+  //     DebugPulse(_DEBUG_PIN2, 1);
+  //     if (rx_pin_read())
+  //       data |= 0x80;
+  //   }
+
+  //   if (_inverse_logic)
+  //     data = ~data;
+
+  //   // if buffer full, set the overflow flag and return
+  //   uint8_t next = (_receive_buffer_tail + 1) % _SS_MAX_RX_BUFF;
+  //   if (next != _receive_buffer_head)
+  //   {
+  //     // save new data in buffer: tail points to where byte goes
+  //     _receive_buffer[_receive_buffer_tail] = data; // save new byte
+  //     _receive_buffer_tail = next;
+  //   } 
+  //   else 
+  //   {
+  //     DebugPulse(_DEBUG_PIN1, 1);
+  //     _buffer_overflow = true;
+  //   }
+
+  //   // skip the stop bit
+  //   tunedDelay(_rx_delay_stopbit);
+  //   DebugPulse(_DEBUG_PIN1, 1);
+
+  //   // Re-enable interrupts when we're sure to be inside the stop bit
+  //   setRxIntMsk(true);
+
+  // }
+
+// #if GCC_VERSION < 40302
+// // Work-around for avr-gcc 4.3.0 OSX version bug
+// // Restore the registers that the compiler misses
+//   asm volatile(
+//     "pop r27 \n\t"
+//     "pop r26 \n\t"
+//     "pop r23 \n\t"
+//     "pop r22 \n\t"
+//     "pop r21 \n\t"
+//     "pop r20 \n\t"
+//     "pop r19 \n\t"
+//     "pop r18 \n\t"
+//     ::);
+// #endif
+}
+
+uint8_t SoftwareSerial::rx_pin_read()
+{
+  return (uint8_t)HAL_GPIO_ReadPin((GPIO_TypeDef *)_receivePortRegister, (HAL_PinsTypeDef)_receivePin);
+}
+
+//
+// Interrupt handling
+//
+
+/* static */
+inline void SoftwareSerial::handle_interrupt() // todo унести в обработчик прерываний
+{
+  if (active_object)
+  {
+    active_object->recv();
+  }
+}
+
+// #if defined(PCINT0_vect)
+// ISR(PCINT0_vect)
+// {
+//   SoftwareSerial::handle_interrupt();
+// }
+// #endif
+
+//
+// Constructor
+//
+SoftwareSerial::SoftwareSerial(uint8_t receivePin, uint8_t transmitPin, bool inverse_logic /* = false */) : 
+  _rx_delay_centering(0),
+  _rx_delay_intrabit(0),
+  _rx_delay_stopbit(0),
+  _tx_delay(0),
+  _buffer_overflow(false),
+  _inverse_logic(inverse_logic)
+{
+  setTX(transmitPin);
+  setRX(receivePin);
+}
+
+//
+// Destructor
+//
+SoftwareSerial::~SoftwareSerial()
+{
+  end();
+}
+
+void SoftwareSerial::setTX(uint8_t tx)
+{
+  // First write, then set output. If we do this the other way around,
+  // the pin would be output low for a short while before switching to
+  // output high. Now, it is input with pullup for a short while, which
+  // is fine. With inverse logic, either order is fine.
+  digitalWrite(tx, _inverse_logic ? LOW : HIGH); // todo проверить, что правда выставляется до конфигурации
+  pinMode(tx, OUTPUT);
+  _transmitBitMask = (uint16_t)digitalPinToBitMask(tx);   // save tx bit mask
+  _transmitPortRegister = (uint32_t)digitalPinToPort(tx); // save tx port adress
+}
+
+void SoftwareSerial::setRX(uint8_t rx)
+{
+  if (!_inverse_logic)
+    pinMode(rx, INPUT_PULLUP);  // pullup for normal logic
+  else
+    pinMode(rx, INPUT);
+  _receivePin = rx; // save rx digital pin number
+  _receiveBitMask = (uint16_t)digitalPinToBitMask(rx);    // save rx bit mask
+  _receivePortRegister = (uint32_t)digitalPinToPort(rx);  // save rx port adress
+}
+
+uint16_t SoftwareSerial::subtract_cap(uint16_t num, uint16_t sub) 
+{
+  if (num > sub)
+    return num - sub;
+  else
+    return 1;
+}
+
+//
+// Public methods
+//
+void SoftwareSerial::begin(long speed)
+{
+  _rx_delay_centering = _rx_delay_intrabit = _rx_delay_stopbit = _tx_delay = 0;
+
+  // limit speed
+  if (speed > MAX_SOFT_SERIAL_SPEED) speed = MAX_SOFT_SERIAL_SPEED;
+  if (speed < MIN_SOFT_SERIAL_SPEED) speed = MIN_SOFT_SERIAL_SPEED;
+
+  // Precalculate the various delays in number of ticks
+  uint32_t bit_delay = F_CPU / speed;
+
+  // 12 (gcc 4.8.2) or 13 (gcc 4.3.2) cycles from start bit to first bit,
+  // 15 (gcc 4.8.2) or 16 (gcc 4.3.2) cycles between bits,
+  // 12 (gcc 4.8.2) or 14 (gcc 4.3.2) cycles from last bit to stop bit
+  // These are all close enough to just use 15 cycles, since the inter-bit
+  // timings are the most critical (deviations stack 8 times)
+  _tx_delay = subtract_cap(bit_delay, 15);
+
+  // Only setup rx when we have a valid INT for this pin
+  if (digitalPinToInterrupt(_receivePin) != NOT_AN_INTERRUPT) 
+  {
+    #if GCC_VERSION > 40800
+    // Timings counted from gcc 4.8.2 output. This works up to 115200 on
+    // 16Mhz and 57600 on 8Mhz.
+    //
+    // When the start bit occurs, there are 3 or 4 cycles before the
+    // interrupt flag is set, 4 cycles before the PC is set to the right
+    // interrupt vector address and the old PC is pushed on the stack,
+    // and then 75 cycles of instructions (including the RJMP in the
+    // ISR vector table) until the first delay. After the delay, there
+    // are 17 more cycles until the pin value is read (excluding the
+    // delay in the loop).
+    // We want to have a total delay of 1.5 bit time. Inside the loop,
+    // we already wait for 1 bit time - 23 cycles, so here we wait for
+    // 0.5 bit time - (71 + 18 - 22) cycles.
+    _rx_delay_centering = subtract_cap(bit_delay / 2, (4 + 4 + 75 + 17 - 23));
+
+    // There are 23 cycles in each loop iteration (excluding the delay)
+    _rx_delay_intrabit = subtract_cap(bit_delay, 23);
+
+    // There are 37 cycles from the last bit read to the start of
+    // stopbit delay and 11 cycles from the delay until the interrupt
+    // mask is enabled again (which _must_ happen during the stopbit).
+    // This delay aims at 3/4 of a bit time, meaning the end of the
+    // delay will be at 1/4th of the stopbit. This allows some extra
+    // time for ISR cleanup, which makes 115200 baud at 16Mhz work more
+    // reliably
+    _rx_delay_stopbit = subtract_cap(bit_delay * 3 / 4, (37 + 11));
+    #else // Timings counted from gcc 4.3.2 output
+    // Note that this code is a _lot_ slower, mostly due to bad register
+    // allocation choices of gcc. This works up to 57600 on 16Mhz and
+    // 38400 on 8Mhz.
+    _rx_delay_centering = subtract_cap(bit_delay / 2, (4 + 4 + 97 + 29 - 11));
+    _rx_delay_intrabit = subtract_cap(bit_delay, 11);
+    _rx_delay_stopbit = subtract_cap(bit_delay * 3 / 4, (44 + 17));
+    #endif
+
+    // Enable the INT for the entire port here, but never disable it
+    // (others might also need it, so we disable the interrupt by using
+    // the per-pin PCMSK register).
+    if (_inverse_logic)
+      _int_mode = GPIO_INT_MODE_RISING;   // start bit: low to high
+    else 
+      _int_mode = GPIO_INT_MODE_FALLING;  // start bit: high to low
+    // Save gpio_mux and gpio_line for on/off interrupts
+    _int_maskMux = digitalPinToGpioIntMux(_receivePin);   // gpio mux value
+    _int_maskLine = digitalPinToGpioIntLine(_receivePin); // gpio irq line value
+    HAL_EPIC_MaskEdgeSet(HAL_EPIC_GPIO_IRQ_MASK);         // turn on the mask in EPIC
+
+    // *digitalPinToPCICR((int8_t)_receivePin) |= _BV(digitalPinToPCICRbit(_receivePin));
+    // _pcint_maskreg = digitalPinToPCMSK(_receivePin);
+    // _pcint_maskvalue = _BV(digitalPinToPCMSKbit(_receivePin));
+
+    tunedDelay(_tx_delay); // if we were low this establishes the end
+  }
+
+// #if _DEBUG
+//   pinMode(_DEBUG_PIN1, OUTPUT);
+//   pinMode(_DEBUG_PIN2, OUTPUT);
+// #endif
+
+  listen();
+}
+
+void SoftwareSerial::setRxIntMsk(bool enable)
+{
+    if (enable)
+      HAL_GPIO_InitInterruptLine((HAL_GPIO_Line_Config)_int_maskMux, (HAL_GPIO_InterruptMode)_int_mode);
+      // *_pcint_maskreg |= _pcint_maskvalue;
+    else
+      HAL_GPIO_DeInitInterruptLine((HAL_GPIO_Line)_int_maskLine);
+      // *_pcint_maskreg &= ~_pcint_maskvalue;
+}
+
+void SoftwareSerial::end()
+{
+  stopListening();
+}
+
+
+// Read data from buffer
+int SoftwareSerial::read()
+{
+  if (!isListening())
+    return -1;
+
+  // Empty buffer?
+  if (_receive_buffer_head == _receive_buffer_tail)
+    return -1;
+
+  // Read from "head"
+  uint8_t data = _receive_buffer[_receive_buffer_head]; // grab next byte
+  _receive_buffer_head = (_receive_buffer_head + 1) % _SS_MAX_RX_BUFF;
+  return data;
+}
+
+int SoftwareSerial::available()
+{
+  if (!isListening())
+    return 0;
+
+  return ((unsigned int)(_receive_buffer_tail + _SS_MAX_RX_BUFF - _receive_buffer_head)) % _SS_MAX_RX_BUFF;
+}
+
+size_t SoftwareSerial::write(uint8_t byte)
+{
+  if (_tx_delay == 0) 
+  {
+    setWriteError();
+    return 0;
+  }
+
+  // By declaring these as local variables, the compiler will put them
+  // in registers _before_ disabling interrupts and entering the
+  // critical timing sections below, which makes it a lot easier to
+  // verify the cycle timings
+  uint8_t bit_mask = _transmitBitMask; // битовая маска в порту
+
+  bool inv = _inverse_logic;
+  uint16_t delay = _tx_delay;
+
+  if (inv)
+    byte = ~byte;
+
+  noInterrupts();  // turn off interrupts for a clean txmit
+
+  // Write the start bit
+  if (inv)
+  // todo проверить, можно ли так выставлять через адрес порта
+    HAL_GPIO_WritePin((GPIO_TypeDef *)_transmitPortRegister, (HAL_PinsTypeDef)bit_mask, GPIO_PIN_HIGH);
+    // *reg |= reg_mask; // бит tx в 1
+  else
+    HAL_GPIO_WritePin((GPIO_TypeDef *)_transmitPortRegister, (HAL_PinsTypeDef)bit_mask, GPIO_PIN_LOW);
+    // *reg &= inv_mask; // бит tx в 0
+
+  tunedDelay(delay);
+
+  // Write each of the 8 bits
+  for (uint8_t i = 8; i > 0; --i)
+  {
+    if (byte & 1) // choose bit
+      // *reg |= reg_mask; // send 1
+      HAL_GPIO_WritePin((GPIO_TypeDef *)_transmitPortRegister, (HAL_PinsTypeDef)bit_mask, GPIO_PIN_HIGH);
+    else
+      // *reg &= inv_mask; // send 0
+      HAL_GPIO_WritePin((GPIO_TypeDef *)_transmitPortRegister, (HAL_PinsTypeDef)bit_mask, GPIO_PIN_LOW);
+
+    tunedDelay(delay);
+    byte >>= 1;
+  }
+
+  // restore pin to natural state
+  if (inv)
+    HAL_GPIO_WritePin((GPIO_TypeDef *)_transmitPortRegister, (HAL_PinsTypeDef)bit_mask, GPIO_PIN_LOW);
+    // *reg &= inv_mask; // бит tx в 0
+  else
+    HAL_GPIO_WritePin((GPIO_TypeDef *)_transmitPortRegister, (HAL_PinsTypeDef)bit_mask, GPIO_PIN_HIGH);
+    // *reg |= reg_mask; // бит tx в 1
+
+  interrupts(); // enable interrupts
+  tunedDelay(_tx_delay);
+  
+  return 1;
+}
+
+void SoftwareSerial::flush()
+{
+  // There is no tx buffering, simply return
+}
+
+int SoftwareSerial::peek()
+{
+  if (!isListening())
+    return -1;
+
+  // Empty buffer?
+  if (_receive_buffer_head == _receive_buffer_tail)
+    return -1;
+
+  // Read from "head"
+  return _receive_buffer[_receive_buffer_head];
+}

libraries/SoftwareSerial/src/SoftwareSerial.h

@@ -0,0 +1,110 @@
+/*
+SoftwareSerial.h 
+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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+The latest version of this library can always be found at
+http://arduiniana.org.
+*/
+
+#ifndef SoftwareSerial_h
+#define SoftwareSerial_h
+
+#include <inttypes.h>
+#include <Stream.h>
+
+/******************************************************************************
+* Definitions
+******************************************************************************/
+
+#ifndef _SS_MAX_RX_BUFF
+#define _SS_MAX_RX_BUFF 64 // RX buffer size
+#endif
+
+#ifndef GCC_VERSION
+#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#endif
+
+class SoftwareSerial : public Stream
+{
+private:
+  // per object data
+  uint8_t _receivePin;
+  uint16_t _receiveBitMask;
+  uint32_t _receivePortRegister;
+  uint16_t _transmitBitMask;
+  uint32_t _transmitPortRegister;
+  uint8_t _int_maskMux;
+  uint8_t _int_maskLine;
+  uint8_t _int_mode;
+
+  // Expressed as 4-cycle delays (must never be 0!)
+  uint16_t _rx_delay_centering;
+  uint16_t _rx_delay_intrabit;
+  uint16_t _rx_delay_stopbit;
+  uint16_t _tx_delay;
+
+  uint16_t _buffer_overflow:1;
+  uint16_t _inverse_logic:1;
+
+  // static data
+  static uint8_t _receive_buffer[_SS_MAX_RX_BUFF]; 
+  static volatile uint8_t _receive_buffer_tail;
+  static volatile uint8_t _receive_buffer_head;
+  static SoftwareSerial *active_object;
+
+  // private methods
+  inline void recv() __attribute__((__always_inline__));
+  uint8_t rx_pin_read();
+  void setTX(uint8_t transmitPin);
+  void setRX(uint8_t receivePin);
+  inline void setRxIntMsk(bool enable) __attribute__((__always_inline__));
+
+  // Return num - sub, or 1 if the result would be < 1
+  static uint16_t subtract_cap(uint16_t num, uint16_t sub);
+
+  // private static method for timing
+  static inline void tunedDelay(uint16_t delayTicks);
+
+public:
+  // public methods
+  SoftwareSerial(uint8_t receivePin, uint8_t transmitPin, bool inverse_logic = false);
+  ~SoftwareSerial();
+  void begin(long speed);
+  bool listen();
+  void end();
+  bool isListening() { return this == active_object; }
+  bool stopListening();
+  bool overflow() 
+  { 
+    bool ret = _buffer_overflow; 
+    if (ret) 
+      _buffer_overflow = false; 
+    return ret; 
+  }
+  int peek();
+
+  virtual size_t write(uint8_t byte);
+  virtual int read();
+  virtual int available();
+  virtual void flush();
+  operator bool() { return true; }
+  
+  using Print::write;
+
+  // public only for easy access by interrupt handlers
+  static inline void handle_interrupt() __attribute__((__always_inline__));
+};
+
+#endif

variants/standart/pins_arduino.h

@@ -109,16 +109,33 @@ static const uint8_t SCL = PIN_WIRE_SCL;
 #define WIRE_FREQ_1000K   1000000
 
 // interrupts
-// determines the board pin number by interrupt number
+extern const uint8_t interruptInfo[EXTERNAL_NUM_INTERRUPTS][3];
-uint32_t interruptToDigitalPin(uint8_t interruptNum);
 // determines interrupt number by the board pin number 
 int8_t digitalPinToInterrupt(uint32_t digPinNumber);
-// determines gpio interrupt line by interrupt number
-uint32_t interruptToGpioIntLine(uint8_t interruptNum);
 // 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);
+
+// determines the board pin number by interrupt number
+inline uint8_t interruptToDigitalPin(uint8_t interruptNum)
+{
+  return interruptInfo[interruptNum][0];
+}
+
+// determines gpio interrupt line by interrupt number
+inline uint8_t interruptToGpioIntLine(uint8_t interruptNum)
+{
+  return (uint8_t)interruptInfo[interruptNum][1];
+}
+
 // determines gpio interrupt mux by interrupt number
-uint32_t interruptToGpioIntMux(uint8_t interruptNum);
+inline uint8_t interruptToGpioIntMux(uint8_t interruptNum)
+{
+  return (uint8_t)interruptInfo[interruptNum][2];
+}
 
 #ifdef __cplusplus
 }

variants/standart/variant.c

@@ -229,19 +229,23 @@ const uint8_t interruptInfo[EXTERNAL_NUM_INTERRUPTS][3] =
   {BTN_BUILTIN, GPIO_LINE_6,  GPIO_MUX_LINE_6_PORT2_6},   // INT6 (button)
 };
 
-uint32_t interruptToDigitalPin(uint8_t interruptNum)
+int8_t digitalPinToGpioIntMux(uint8_t digPinNumber)
 {
-  return interruptInfo[interruptNum][0];
+  for (uint8_t i = 0; i < EXTERNAL_NUM_INTERRUPTS; i++)
+  {
+    if (interruptInfo[i][0] == digPinNumber)
+      return interruptInfo[i][2];
   }
-
+  return NOT_AN_INTERRUPT;
-uint32_t interruptToGpioIntLine(uint8_t interruptNum)
-{
-  return (uint32_t)interruptInfo[interruptNum][1];
 }
-
+int8_t digitalPinToGpioIntLine(uint8_t digPinNumber)
-uint32_t interruptToGpioIntMux(uint8_t interruptNum)
 {
-  return (uint32_t)interruptInfo[interruptNum][2];
+  for (uint8_t i = 0; i < EXTERNAL_NUM_INTERRUPTS; i++)
+  {
+    if (interruptInfo[i][0] == digPinNumber)
+      return interruptInfo[i][1];
+  }
+  return NOT_AN_INTERRUPT;
 }
 
 int8_t gpioIntLineToInterrupt(uint32_t gpioIntLine)