[参考译文] MSP430FR2311：MSP430FR2311计时器 B 仅在 RTC_ISR 处于活动状态时有效！？

#include <msp430.h>

#define PIN_LCD_LED     BITD // P2.5

int main(void)
{
    WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer

    PADIR=0xFFFF;
    PM5CTL0 &= ~LOCKLPM5;

    TB0CCTL0 = CCIE; // TBCCR0 interrupt enabled
    TB0CCR0 = 4096;   // Counter setpoint
    TB0CTL = TBSSEL__SMCLK | MC__UP | ID__8; // SMCLK divided by 8, up mode

    __bis_SR_register(LPM0_bits + GIE);
}

#pragma vector=RTC_VECTOR // PROBLEM: When I remove this line, timer B stops working
__interrupt void RTC_ISR(void)
{ }

#pragma vector = TIMER0_B0_VECTOR
__interrupt void ISR_Timer0_B0 (void)
{
   PAOUT ^= PIN_LCD_LED;
}