Arduino Full Stack
Search
⌃K

2.6 Interrupt Functions

2.6.1 void interrupts();

  • brief: re-enable interrupts after having been disabled by function noInterrupts().
  • param: void
  • return: void.

2.6.2 void noInterrupts();

  • brief: disable interrupts.
  • param: void
  • return: void.

2.6.3 void attachInterrupt(digitalPinToInterrupt(pin), ISR, mode);

  • brief: attach interrupt to some particular digital pin. Whenever there is an interrupt, function ISR will be called.
  • param:
    • digitalPinToInterrupt(pin): an interrupt is normally triggered from a particular pin.
    • ISR: Interrupt Service Routine, a function has NO parameters and has NO return value.
    • mode: LOW, HIGH, CHANGE, RISING or FALLING.
      1. 1.
        LOW： trigger the interrupt whenever the pin is at low-level.
      2. 2.
        HIGH: trigger the interrupt whenever the pin is at high-level.
      3. 3.
        CHANGE: trigger the interrupt whenever the pin changes from HIGH to LOW, or from LOW to HIGH.
      4. 4.
        RISING: trigger the interrupt whenever the pin changes from LOW to HIGH.
      5. 5.
        FALLING: trigger the interrupt whenever the pin changes from HIGH to LOW.
  • return: void.

2.6.4 void detachInterrupt(digitalPinToInterrupt(pin));

  • brief: detach interrupt from some particular digital pin.
  • param:
    • digitalPinToInterrupt(pin): an interrupt is normally triggered from a particular pin.
  • return: void.
Previous
2.5 Time Functions
Next
2.7 Communication Classes
Last modified 5yr ago