ATtiny85 Arduino IDE micros() funktioniert nicht richtig

// Forcing this inline keeps the callers from having to push their own stuff

// on the stack. It is a good performance win and only takes 1 more byte per

// user than calling. (It will take more bytes on the 168.)

//

// But shouldn't this be moved into pinMode? Seems silly to check and do on

// each digitalread or write.

//

__attribute__((always_inline)) static inline void turnOffPWM( uint8_t pin )

{

  #if CORE_PWM_COUNT >= 1

    if ( pin == CORE_PWM0_PIN )

    {

      Pwm0_SetCompareOutputMode( Pwm0_Disconnected );

    }

    else

  #endif

  #if CORE_PWM_COUNT >= 2

    if ( pin == CORE_PWM1_PIN )

    {

      Pwm1_SetCompareOutputMode( Pwm1_Disconnected );

    }

    else

  #endif

  #if CORE_PWM_COUNT >= 3

    if ( pin == CORE_PWM2_PIN )

    {

      Pwm2_SetCompareOutputMode( Pwm2_Disconnected );

    }

    else

  #endif

  #if CORE_PWM_COUNT >= 4

    if ( pin == CORE_PWM3_PIN )

    {

      Pwm3_SetCompareOutputMode( Pwm3_Disconnected );

    }

    else

  #endif

  #if CORE_PWM_COUNT >= 5

  #error Only 4 PWM pins are supported.  Add more conditions.

  #endif

    {

    }

}

void digitalWrite(uint8_t pin, uint8_t val)

{

  uint8_t bit = digitalPinToBitMask(pin);

  uint8_t port = digitalPinToPort(pin);

  volatile uint8_t *out;

  if (port == NOT_A_PIN) return;

  // If the pin that support PWM output, we need to turn it off

  // before doing a digital write.

  //turnOffPWM( pin ); FIXME

  out = portOutputRegister(port);

  if (val == LOW) {

    uint8_t oldSREG = SREG;

    cli();

    *out &= ~bit;

    SREG = oldSREG;

  } else {

    uint8_t oldSREG = SREG;

    cli();

    *out |= bit;

    SREG = oldSREG;

  }

}

int digitalRead(uint8_t pin)

{

  uint8_t bit = digitalPinToBitMask(pin);

  uint8_t port = digitalPinToPort(pin);

  if (port == NOT_A_PIN) return LOW;

  // If the pin that support PWM output, we need to turn it off

  // before getting a digital reading.

  //turnOffPWM( pin );    FIXME

  if (*portInputRegister(port) & bit) return HIGH;

  return LOW;

}