大大们看下红外发射的程序有木有什么问题

只看该作者 · 2013-8-5 17:17

#include <msp430g2553.h>

#define CPU_F ((double)1000000)

#define delay_us(x) __delay_cycles((long)(CPU_F*(double)x/1000000.0))

#define delay_ms(x) __delay_cycles((long)(CPU_F*(double)x/1000.0))

void ir_open();

void ir_start();

void ir_send_byte(unsigned char c);

void ir_end();

void ir_put(unsigned char c);



void ir_open()

{

         TACTL |=TASSEL_2+TACLR+MC_1;

         TACCTL1 |= OUTMOD_7;

         CCR0=26;

         CCR1=13;

  P1DIR |= BIT2;

  P1SEL |= BIT2;



}



void ir_start()

{

P1SEL|=BIT2;

  delay_us(9000);



 P1SEL&=~BIT2;

  delay_us(4500);

}







void ir_send_byte(unsigned char c){

  unsigned char i;



  for(i = 0; i != 8; ++i)

  {

          P1SEL|=BIT2;

    delay_us(560);



    P1SEL&=~BIT2;

    if(c&0x01){

      delay_us(1685);

    }

    else{

      delay_us(565);

    }



    c >>= 1;

  }

}



void ir_end()

{

        P1SEL|=BIT2;

  delay_us(650);

  P1SEL&=~BIT2;

  delay_ms(40);

}



void ir_put(unsigned char c)

{

  ir_start();

  ir_send_byte(0x00);

  ir_send_byte(0xff);

  ir_send_byte(c);

  ir_send_byte(~c);

  ir_end();

}



void main(void)

{

  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT

  DCOCTL=CALDCO_1MHZ;

  BCSCTL1=CALBC1_1MHZ;

  ir_open();







  while(1){



    ir_put(0x04);

P1OUT|=BIT2;

    delay_ms(1000);

  }



}