MSP430单片机定时器面面观

+TACLR; //选择ACLK为分频时钟源,清TAR

TACTL |= MC0; //开启Timer_A,连续计数模式

CCTL0 = CCIE; //开启Timer_A的中断

CCR0 = 32000; //延时32000/32k=1s

P5DIR |= BIT1;

P5OUT |= BIT1;

while(1)

{

_BIS_SR(LPM3_bits+GIE); //进入低功耗模式

}

}

#pragma vector=TIMERA0_VECTOR

__interrupt void Time_A()

{

P5OUT ^=BIT1;

}