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标题: 基于MSP430G2553呼吸灯程序 [打印本页]

作者: XJzy 时间: 2015-9-29 17:03
标题: 基于MSP430G2553呼吸灯程序
基于MSP430G2553呼吸灯程序
#include<msp430g2553.h>

void BreathLED()

{



      P1SEL =BIT6;

      P1DIR = BIT6;

      P1OUT=0;

      TACTL = TASSEL_1 + MC_1  ;

      TACCTL1 =  OUTMOD_3 ;

      TACCTL0 = CCIE;

      CCR0 =12000;

      CCR1 =327;       //0% pwm



      TACTL |=TACLR;

      _EINT();

}



int main( void )

{

// Stop watchdog timer to prevent time out reset

WDTCTL = WDTPW + WDTHOLD;

BCSCTL3 |= LFXT1S_2; // Set LFXT1为vol时钟即12kHZ

BreathLED();

LPM0;

return 0;

}

#pragma vector=TIMER0_A0_VECTOR

__interrupt void CountTimes()

{

      static int Times;

      Times++;

      switch(Times)

      {

      case 20:

               CCR1=294;

               break;

      case 30:

               CCR1=277;

               break;

      case 40:

               CCR1=262; //20% PWM

               break;

      case 50:

               CCR1=245; //20% PWM

               break;

      case 60:

               CCR1=228; //40% PWM

               break;

      case 80:

               CCR1=196; //40% PWM

               break;

      case 100:

               CCR1=163;

               break;

      case 120:

               CCR1=131; //60% PWM

               break;

      case 140:

               CCR1=98; //60% PWM

               break;

      case 160:

               CCR1=65; //80% PWM

               break;

      case 180:

               CCR1=32; //80% PWM

               break;

      case 200:

               CCR1=1;    //100% PWM

               break;

      case 220:

               CCR1=32; //80% PWM

               break;
      case 240:

               CCR1=65;

               break;

      case 260:

               CCR1=98; //60% PWM

               break;

      case 280:

               CCR1=131;

               break;

      case 300:

               CCR1=163;

               break;

      case 320:

               CCR1=196;

               break;

      case 340:

               CCR1=228; //40% PWM

               break;

      case 350:

               CCR1=245; //40% PWM

               break;

      case 360:

               CCR1=262;

               break;

      case 370:

               CCR1=277;

               break;

      case 380:

               CCR1=294;

               break;
      case 390:

               CCR1=310;

               break;
      case 400:

               {

               CCR1=327;

               Times=0;

               }

               break;

      default:

               break;

      }

}

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