msp430 timer interrupts and port interrupts - c

Question

I have written the following C code to trigger two port interrupts in order to blink a LED at different rates, I have used _delay_cycles(900000); instead I want to use a method delayMS(125); using timer interrpts, I tried as shown but Does not work , please help...
#include <msp430.h>
void initTimer_A(void);
void delayMS(int msecs);
unsigned int ofCount;
int main(void) {
WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer
BCSCTL1 = CALBC1_1MHZ; //Set DCO to 1Mhz
DCOCTL = CALDCO_1MHZ;
P1OUT=0X00;
P1DIR=0x01; //P1.0 (LED) as output)
P1IES |= 0x08; // high -> low is selected with IESx = 1.
P1IFG &= ~0x08; // To prevent an immediate interrupt, clear the flag for
P1IE |= 0x08; // Enable interrupts for P1.3
P1DIR &= ~0b00001000; // p1.3 as in
P2OUT=0X00;
P2DIR=0x01; //P2.0 (LED) as output)
P2IES |= 0x08; // high -> low is selected with IESx = 1.
P2IFG &= ~0x08; // To prevent an immediate interrupt, clear the flag for
// P2.3 before enabling the interrupt.
P2IE |= 0x08; // Enable interrupts for P1.3
P2DIR &= ~0b00001000; // p2.3 as in
_enable_interrupt();
// initTimer_A();
ofCount = 0;
P1OUT |= 0x01; //Initially the led will glow
P2OUT |= 0x01; //Initially the led will glow
while(1)
{
}
return 0;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//configure timer
void initTimer_A(void){
TACCR0 = 0;
TACCTL0 |= CCIE;
TACTL = TASSEL_2 + ID_0 + MC_1;
}
void delayMS(int msecs){
ofCount= 0;
TACCR0 = 1000-1;
while(ofCount<=msecs);
TACCR0 = 0;//stp timer
}
#pragma vector = TIMER0_A0_VECTOR
__interrupt void Timer_A_CCR0_ISR(void)
{
ofCount++;
}
//+++++++++++++++++ port vectors ++++++++++++++++++++++++++++++++++++++++++++++++++++
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
#pragma vector = PORT1_VECTOR //PORT1 interupt vecotr name
__interrupt void P1_ISR(void) {
while(P1IN == 1){
P1OUT ^= BIT0;
This is the place where I want to change with delayMS() function using timer interrupts ….
_delay_cycles(900000);
//delayMS(125);
P1OUT ^= BIT0;
// delayMS(125);
_delay_cycles(900000);
P1IFG &= ~BIT3; } // clear the interupt flag
}
#pragma vector = PORT2_VECTOR
__interrupt void P2_ISR(void) {
while(P2IN == 1){
P1OUT ^= BIT0;
_delay_cycles(9000);
//delayMS(125);
P1OUT ^= BIT0;
_delay_cycles(9000);
//P2OUT ^= BIT0;
P2IFG &= ~BIT3; } // clear the interupt flag
}