/*******************************************************************************
* Function IR_Send(char IR_Address, char IR_COmmand)
* ------------------------------------------------------------------------------
* Overview: Functions sends address and command via IR NEC protocol
* Input:  Address - address of the device
*         Command - command for device
* Output: Nothing
*******************************************************************************/
void IR_Send(char IR_Address, char IR_COmmand)
{
     char ir_byte[4];
     char bitnum;
     char bytenum;

     ir_byte[3] = ~IR_COmmand;
     ir_byte[2] =  IR_COmmand;
     ir_byte[1] = ~IR_Address;
     ir_byte[0] =  IR_Address;

    // Delay_ms(100);                                  // precaution to be certain of some dead time before message start
     PWM1_Start();                                   // mark
     led=1;
     Delay_ms(9);                                 // 9mS mark start bit
     PWM1_Stop();                                    // space
     led=0;
     Delay_us(4500);                                 // 4.5mS space ends start bit
     for(bytenum = 0; bytenum < 4; bytenum++)        // 4 bytes to send
           {
             for(bitnum = 0; bitnum < 8; bitnum++)    // 8 bits LSB first
                  {
                   PWM1_Start();                           // mark
                   led=1;
                   Delay_us(560);                          // 560uS mark for '0' or '1'
                   PWM1_Stop();                            // space
                   led=0;
                   if(ir_byte[bytenum] & (1 << bitnum))     // test bit <bitnum>
                       {
                         Delay_us(1680);                     // 1.68mS space for a '1'
                       }
                  else{
                       Delay_us(560);                      // 560uS space for a '0'
                     }
                  }
           }
     PWM1_Start();                                   // mark
     
     Delay_us(560);                                  // stop bit of '1'
     PWM1_Stop();                                    // space
     
     Delay_us(1680);                                 // stop bit of 1
     Delay_ms(200);                                  // precaution to be certain of some dead time after message ends

}