红外编码与解码——GREE格力遥控 发送

data <<= 1;

  }

  data = 0x02;

  for (int i = 0; i < 3; i++){

      if (data & TOPBIT) {

      IRsend_mark(GREE_BIT_MARK);

      IRsend_space(GREE_ONE_SPACE);

    }

    else {

      IRsend_mark(GREE_BIT_MARK);

      IRsend_space(GREE_ZERO_SPACE);

    }

    data <<= 1;

  }

IRsend_mark(GREE_COM_MARK);

  IRsend_space(GREE_COM_SPACE);  

  

  temp = datavalue&0x00000040;//7

  data = (temp>>6);

  data = data<<4;

  temp = datavalue&0x00000020;//6

  data = data|(temp>>5);

  data = data<<5;

  temp = datavalue&0x00000018;//5 4

  data = data|(temp>>3);

  data = ((data<<16)|0x1000)<<1;//3

  temp = datavalue&0x00000004;

  data = data|(temp>>2);

  data = (data<<5)|(greeCRC&0x000f);

  for (int i = 0; i < 32; i++){

      if (data & TOPBIT) {

      IRsend_mark(GREE_BIT_MARK);

      IRsend_space(GREE_ONE_SPACE);

    } 

else {

      IRsend_mark(GREE_BIT_MARK);

      IRsend_space(GREE_ZERO_SPACE);

    }

    data <<= 1;

  }

  

  IRsend_mark(GREE_BIT_MARK);

  IRsend_space(0);

}

void Sct_Pwm_Init(uint32_t PWM_RATE)

{

    /* Initialize the SCT as PWM and set frequency */

Chip_SCTPWM_Init(LPC_SCT);

Chip_SCTPWM_SetRate(LPC_SCT, PWM_RATE);

/* Setup Board specific output pin */

Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 9, IOCON_FUNC2 | IOCON_MODE_INACT | IOCON_DIGITAL_EN | IOCON_INPFILT_OFF);

/* Use SCT0_OUT1 pin */

Chip_SCTPWM_SetOutPin(LPC_SCT, SCT_PWM_OUT, SCT_PWM_PIN_OUT);

/* Start with 0% duty cycle */

Chip_SCTPWM_SetDutyCycle(LPC_SCT, SCT_PWM_OUT, Chip_SCTPWM_GetTicksPerCycle(LPC_SCT) / 4);

//Chip_SCTPWM_Start(LPC_SCT);

}

void IRsend_mark(int time) {

  // Sends an IR IRsend_mark for the specified number of microseconds.

  // The IRsend_mark output is modulated at the PWM frequency.

  TIMER_ENABLE_PWM(); // Enable pin 3 PWM output

  if (time > 0) delayMicros(time);

}





/* Leave pin off for time (given in microseconds) */

void IRsend_space(int time) {

  // Sends an IR IRsend_space for the specified number of microseconds.

  // A IRsend_space is no output, so the PWM output is disabled.

  TIMER_DISABLE_PWM(); // Disable pin 3 PWM output

  if (time > 0) delayMicros(time);

}