MSP430 LaunchPad IO external interrupt-EEWORLD

Collect

#include


int main( void )
{
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
  
  P1DIR |= 0x01; //Set P1.0 port to output
  P1IE |= 0x08; // Enable P1.3 interrupt
  P1IES |= 0x08; //P1.3 port falling edge triggers interrupt
  P1IFG &= ~0x08; // Clear the interrupt flag


  _EINT(); //Open the general interrupt
//_BIS_SR(LPM4_bits + GIE);
  while(1)
  {
  }
}


/*Interrupt service routine*/
#pragma vector = PORT1_VECTOR
__interrupt void PORT_1(void)
{
  P1OUT ^= 0x01; //P1.0 status flip
  P1IFG &= ~0x08; // Clear the interrupt flag
}

Keywords：MSP430 Reference address：MSP430 LaunchPad IO external interrupt

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