Can a TIMER1 interrupt call a method with a TIMER0 Interrupt?

Hi,

I'm working with a MSP-EXP430G2 Launch pad and modifying demo code of a DLP-9070ABP RFID booster pad. I'm trying to switch the code to call the RFID "FindTag" function from an interrupt rather than from a While Loop. I've setup a TIMERA1 Interrupt to check the RFID approximately every 2 seconds.

Here is the new Interrupt Routine.

#pragma vector=TIMER1_A1_VECTOR
__interrupt void Timer_A(void) {

//Stop the counter
	TA1CTL &= ~(MC0 + MC1);

//Process the Interrupt Register
//Only handles CCR1, CCR2, and Overflow
//CCR0 Handled by different Interrupt
	switch (TA1IV) {
	case TA1IV_NONE:
		break;

	case TA1IV_TACCR1:
		Nfc_FindTag();
//		McuDelayMillisecond(1000);
//		// Add Offset to TA1CCR1
		TA1CCR1 += 3 * 2000;
//		break;

	case TA1IV_TACCR2:
		break;

	case TA1IV_6:
		break;
	case TA1IV_8:
		break;
	case TA1IV_TAIFG:
		break;
	default:
		break;
	}
	TA1CTL |= MC_1;
}

Unfortunately, I'm now in a TRAP waiting for TIMER0 to complete.

        g_ui8IrqFlag = 0x00;
        // Setup for the Timer
        McuCounterSet();
        // Calculate the timeout value for the timer
        COUNTER_VALUE = COUNT_1ms * ui8TxTimeout;
        // Start the Timeout
        START_COUNTER;
        while((g_ui8IrqFlag == 0x00) && (g_ui8TimeoutFlag == 0x00))    // Wait for an interrupt
        {
            // Do Nothing
        }

McuCounter sets up the following TIMER0 settings:

void
McuCounterSet(void)
{
    TACTL |= TASSEL_1 + TACLR;      // ACLK = 1.5 kHz, timer stopped

    TACCTL0 |= CCIE;                // compare interrupt enable
}

The TIMERA0 Interrupt is shown below.

//===============================================================
//    Timer A0 Interrupt Vector
//===============================================================

#pragma vector=TIMER0_A0_VECTOR
__interrupt void
Msp430g2xx3TimerAHandler(void)
{
    uint8_t ui8IrqStatus;
    ui8IrqStatus = 0x00;

    STOP_COUNTER;

    g_ui8TimeoutFlag = 0x01;

    Trf797xReadIrqStatus(&ui8IrqStatus);

    ui8IrqStatus = ui8IrqStatus & 0xF7;        // Set the parity flag to 0

    if(ui8IrqStatus == TRF797x_IRQ_STATUS_TX_COMPLETE)
    {
        g_sTrf797xStatus = TX_COMPLETE;
    }
    else if(ui8IrqStatus == TRF797x_IRQ_STATUS_IDLE)
    {
        g_sTrf797xStatus = NO_RESPONSE_RECEIVED;
    }
    else
    {
        g_sTrf797xStatus = RX_WAIT;
    }
}

I'm stuck in a While loop because TIMER0 Interrupt is not triggering. Is this because I'm already trapped in an iterrupt and can't call a 2nd Interrupt? Any suggestions would be greatly appreciated.