一、利用定時(shí)器定時(shí)功能，實(shí)現(xiàn)定時(shí)器單個(gè)溢出中斷，實(shí)現(xiàn) P3.0 方波輸出

#include "cc430x613x.h"

void main()

{

WDTCTL = WDTPW + WDTHOLD; // 停止看門(mén)狗定時(shí)器

P3DIR |= 0x04; // P3口初始化,設(shè)置為輸出模式

TA0CCR0 = 32768; // 定義中斷計(jì)數(shù)周期1s,時(shí)鐘頻率為32.768MHZ,32768 / 32768 = 1s

TA0CCTL0 = CCIE; // TA0CCR0捕獲/比較中斷寄存器中斷使能

TA0CTL = TASSEL_1 + MC_1 + TACLR; // TASSEL_1,ACLK時(shí)鐘源 MC_1,增計(jì)數(shù)模式

_BIS_SR(LPM3_bits + GIE); // 進(jìn)入LPM3低功耗模式,開(kāi)啟總中斷

}

#pragma vector = TIMER0_A0_VECTOR

__interrupt void Timer_A(void) // 定時(shí)器中斷觸發(fā),P3輸出口異或,電平翻轉(zhuǎn)

{

P3OUT ^= 0x04;

}

二、利用定時(shí)器定時(shí)功能，實(shí)現(xiàn)定時(shí)器多個(gè)溢出，對(duì)應(yīng)產(chǎn)生多個(gè)中斷，實(shí)現(xiàn) P3.0 輸出

#include "cc430x613x.h"

void main()

{

WDTCTL = WDTPW + WDTHOLD; // 停止看門(mén)狗定時(shí)器

P3DIR |= 0x04; // P3口初始化,設(shè)置為輸出模式

TA0CCR0 = 32768; // 定義中斷計(jì)數(shù)周期1s,時(shí)鐘頻率為32.768MHZ,32768 / 32768 = 1s

TA0CCTL0 = CCIE; // TA0CCR0捕獲/比較中斷寄存器中斷使能

TA0CCR1 = 3276; // 定義中斷溢出周期100ms

TA0CCTL1 = CCIE; // TA0CCR0捕獲/比較中斷寄存器中斷使能

TA0CTL = TASSEL_1 + MC_1 + TACLR; // TASSEL_1,ACLK時(shí)鐘源 MC_1,增計(jì)數(shù)模式

_BIS_SR(LPM3_bits + GIE); // 進(jìn)入LPM3低功耗模式,開(kāi)啟總中斷

}

#pragma vector = TIMER0_A0_VECTOR

__interrupt void Timer_A(void) // 1s溢出中斷

{

P3OUT = ~0x04;

}

#pragma vector = TIMER0_A1_VECTOR

__interrupt void Timer_A1(void) // 100ms溢出中斷

{

switch(TA0IV)

{

case 2:P3OUT = 0x04;break;

case 4:break;

case 10:break;

}

}