dingshiqi.c

来自「msp430f449功能模块的程序」· C语言 代码 · 共 36 行

#include<msp430x44x.h>
unsigned int count0=0;
unsigned int count1=0;
void main(void)
{
FLL_CTL1&=~XT2OFF; // Turn on XT2 开启8M晶体XT2OFF
FLL_CTL1=SELS+FLL_DIV1+FLL_DIV0;// Select SMCLK. This bit selects the SMCLK source as XT2CLK 
                                   //,ACLK divider8
WDTCTL=WDTPW+WDTTMSEL+WDTSSEL+WDTIS0;//看门狗密码 看门狗模式选择 看门狗时钟选择 看门狗
TACTL=TASSEL_1+TACLR+MC0;
TBCTL=TBSSEL_2+CNTL_0+TBCLR+MC0+ID_3;
IE1|=WDTIE;
TACCTL0=CCIE;
TBCCTL0=CCIE;
P3DIR=0X07;
P3OUT=0X00;
TACCR0=32768;
TBCCR0=62500;
_EINT();
while(1);
}

#pragma vector=WDT_VECTOR //看门狗中断服务程序
__interrupt void WDT(void)  
{
P3OUT^=BIT2;
}
#pragma vector=TIMERA0_VECTOR //定时器A的TACCRO中断服务程序
__interrupt void TIMERA(void)  
{
P3OUT^=BIT1;
}
#pragma vector=TIMERB0_VECTOR //定时器B的TBCCRO中断服务程序
__interrupt void TIMERB(void)  
{
P3OUT^=BIT0;}