Tool/software: Code Composer Studio
Hi,
I am trying to toggle an LED on the MSP430F5529 Launchpad when a button is pressed. The button is on board the chip, connected to P1.1, and the LED is connected to 1.0.
I am not getting an interrupt for the button press.
My code is shown below. Can you tell me what is wrong?
#include <msp430.h>
/**
* main.c
*/
int main(void)
{
WDTCTL = WDTPW | WDTHOLD; // stop watchdog timer
//Switch LED off
P1DIR |= BIT0; // P1.0 is output and the rest are input
P1OUT &= ~0x01;
P1IE |= (BIT1);
P1IES &= (~BIT1); // Falling Edge 1 -> 0
P1IFG &= (~BIT1); // Clear interrupt flag for P2.1
while (1)
{
__bis_SR_register(LPM0_bits + GIE); // Enter LPM0 and wait for an interrupt
__no_operation(); // Set breakpoint >>here<< and read
}
return 0;
}
#pragma vector = PORT1_VECTOR
__interrupt void InterruptVectorPort1()
{
P1OUT ^= 0x01; // Toggle P1.0
P1IFG &= ~BIT1; // Clear Interrupt Flag
}
