msp430 Timer a程序无法进入中断

Question

#include <msp430x14x.h>
void main(void)
{
WDTCTL = WDTPW + WDTHOLD;
P2DIR |= BIT0;
P2OUT |= BIT0;

TACCTL0=CCIE;
TACCR0=16384;
TACTL=TASSEL_1+MC_1+TACLR;
_EINT();
while(1);
}
#pragma vector=TIMERA0_VECTOR
__interrupt void Timer_A (void)
{
P2OUT ^=BIT0;
}

Answer 1

给你个例子

void TimerA0Init(void)
{
TA0CCR0 = 16384;

TA0CTL = TASSEL_1 + MC_1 + TACLR; // ACLK, upmode, clear TAR
TA0CCTL0 = CCIE; // CCR0 interrupt enabled
}

void main(void)
{

WDTCTL = WDTPW + WDTHOLD;

P2DIR |= BIT0;
P2OUT |= BIT0;

TimerA0Init();

_EINT();
while(1);

}

#pragma vector = TIMER0_A0_VECTOR
__interrupt void TIMER0_A0_ISR(void)
{

P2OUT ^=BIT0;

}

如果这样都不行，请查看时钟配置，ACLK = ？

追问

我换硬件调试时就能进中断了，软件调试在中断函数中设置断点，始终执行不到断点处