MSP430g2553 timerA中断问题

只看该作者 · 2012-7-11 17:50

代码：#include <msp430g2553.h>
#include "LCDdriver.h"
#include "normal.h"

unsigned  int TA_OV=0;
float period=0;
unsigned int per=0;

void CLK_init(void)
{

BCSCTL1 |= CALBC1_1MHZ;

DCOCTL |= CALDCO_1MHZ;//上面两句将内部DCO校准至1MHz

//while(IFG1&OFIFG)

//{

//IFG1 &= ~OFIFG;

//delay_ms(100);

//}

BCSCTL2 |= SELM_0;//MCLK采用1M的内部DCO

BCSCTL2 |= DIVS_2;//SMCLK采用250K的时钟
}       //时钟初始化
void main(void) {

WDTCTL =WDTPW+WDTHOLD;

CLK_init();

P1DIR &=~BIT2;       //P1.2  TA0.1

P1SEL |=BIT2;

lcdinit();

TACTL =TASSEL_1+MC_2+TAIE+TACLR;

TACCTL1 =CAP +CM_1+CCIS_1+SCS+CCIE; //捕获模块1o

_EINT();

LPM3;

#pragma vector=TIMER0_A1_VECTOR
__interrupt void TIMER_A0 (void){

switch(TAIV){

case 2:  period = (TA_OV*65536+TA0R-per);

      per=TA0R;

      TA_OV=0;

      display_hanz(1,1,"频率为：");

      LCD_DispDec(2,1,period,6,3);

      break;

case 4:break;

case 10: TA_OV++; break;       //yi chu

}
}

只看该作者 · 2012-7-11 17:53

为什么进不了中断、、、、、、

MSP430g2553 timerA中断问题

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