Other Parts Discussed in Thread: MSP430G2553
Hi,
I got a program for hardware interrupt. the program is about toggling the LED1 upon interrupt. I am currently using the msp430g2553. The msp doesnot initiate the ISR upon pressing the switch S1. My code is given below.
#include<msp430g2553.h>
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
P1DIR |= 0x01; // Set P1.0 to output direction
P1OUT |= 0x01; // LED1 on
P1IE |= BIT3; // P1.3 interrupt enabled
P1IES |= BIT3; // P1.3 Hi/lo edge
P1IFG &= ~BIT3; // P1.3 IFG cleared
_BIS_SR(LPM4_bits + GIE); // Enter LPM4 w/interrupt
}
// Port 1 interrupt service routine
#pragma vector=PORT1_VECTOR
__interrupt void Port_1(void)
{
P1OUT ^= 0x01; // P1.0 = toggle
P1IES ^= BIT3;
P1IFG &= ~BIT3; // P1.3 IFG cleared
}
P1.0 is the LED
P1.3 is the switch
Can anyone suggest me on this?
Is the code right?
