Infrared sending program based on single chip microcomputer (Infineon--XC866)

This program is suitable for Infineon--XC866 microcontroller, the carrier is 38KHZ, through P3_0 as the sending port, where: 0 is composed of 0.56m high level and 0.56ms low level, 1 is composed of 0.56 high level and 1.68ms level. It can be applied to C51 with slight modification.

The sending procedure is as follows:
 

//************************************************ ******************************
// @Module Project Settings
// @Filename MAIN.C
// @Project 20W.dav
//------------------------------------------------ ----------------------------
// @Controller Infineon XC866-2FR
//
// @Compiler Keil
//
// @Codegenerator 2.0
//
// @Description This file contains the Project initialization function.
//
//------------------------------------------------ ----------------------------
// @Date 2010-11-4 15:54:56
//
//************************************************ ******************************

// USER CODE BEGIN (MAIN_General,1)

// USER CODE END

//************************************************ ******************************
// @Project Includes
// Complete code download address: click here 
// Infrared receiving program code corresponding to this program: http://www.51hei.com/mcu/1096.html
//************************************************ ******************************

#include "MAIN.H"

// USER CODE BEGIN (MAIN_General,2)
#include 
#define uint unsigned int //macro definition
#define uchar unsigned char

#define HWTx P3_0 //Bit declaration: infrared transmitter pin
bit HWTx_Out; //status of infrared transmitter pin
bit Key_Flag,Flag; // respectively: the flag bit of the button pressed, the flag bit of the timer started
uint Count, Set_Count; //Variable to control the timing time
uchar Table_Tx[4]={0x40,0,0,0}; //Buffer to be sent
uchar HWTx_Code,HWTx_data;
// USER CODE END


//************************************************ ******************************
// @Macros
//************************************************ ******************************

// USER CODE BEGIN (MAIN_General,3)

// USER CODE END


//************************************************ ******************************
// @Defines
//************************************************ ******************************

// USER CODE BEGIN (MAIN_General,4)

// USER CODE END


//************************************************ ******************************
// @Typedefs
//************************************************ ******************************

// USER CODE BEGIN (MAIN_General,5)

// USER CODE END


//************************************************ ******************************
// @Imported Global Variables
//************************************************ ******************************

// USER CODE BEGIN (MAIN_General,6)

// USER CODE END


//************************************************ ******************************
// @Global Variables
//************************************************ ******************************

// USER CODE BEGIN (MAIN_General,7)

// USER CODE END


//************************************************ ******************************
// @External Prototypes
//************************************************ ******************************


// USER CODE BEGIN (MAIN_General,8)

// USER CODE END


//************************************************ ******************************
// @Prototypes Of Local Functions
//************************************************ ******************************

// USER CODE BEGIN (MAIN_General,9)

// USER CODE END


//************************************************ ******************************
// @Function void MAIN_vInit(void)
//
//------------------------------------------------ ----------------------------
// @Description This function initializes the microcontroller. It is
// assumed that the SFRs are in their reset state.
//
//------------------------------------------------ ----------------------------
// @Returnvalue None
//
//------------------------------------------------ ----------------------------
// @Parameters None
//
//------------------------------------------------ ----------------------------
// @Date 2010-11-4
//
//************************************************ ******************************

// USER CODE BEGIN (MAIN_Init,1)

// USER CODE END

void MAIN_vInit(void)
{
  // USER CODE BEGIN (MAIN_Init,2)

  // USER CODE END

  /// -------------------------------------------------- --------------------------
  /// Configuration of the System Clock:
  /// -------------------------------------------------- --------------------------
  /// - On Chip Osc is Selected
  /// - PLL Mode, NDIV = 2
  /// - input frequency is 10 MHz

 

  /// *********************************************** **********************************
  /// Note: All peripheral related IO configurations are done in the
  /// respective peripheral modules (alternate functions selection)
  /// *********************************************** **********************************


  /// Initialization of module 'GPIO'
  IO_vInit();

  // Interrupt Priority

  IP = 0x00; // load Interrupt Priority Register
  IPH = 0x00; // load Interrupt Priority High Register
  IP1 = 0x00; // load Interrupt Priority 1 Register
  IPH1 = 0x00; // load Interrupt Priority 1 High Register


  // USER CODE BEGIN (MAIN_Init,3)

  // USER CODE END

  // globally enable interrupts
  EA = 1;           

} // End of function MAIN_vInit
[page]

//************************************************ ******************************
// @Function void main(void)
//
//------------------------------------------------ ----------------------------
// @Description This is the main function.
//
//------------------------------------------------ ----------------------------
// @Returnvalue None
//
//------------------------------------------------ ----------------------------
// @Parameters None
//
//------------------------------------------------ ----------------------------
// @Date 2010-11-4
//
//************************************************ ******************************

// USER CODE BEGIN (MAIN_Main,1)
void delay(uint z) //delay time is about 1ms*X crystal oscillator is 12M
{
 　　uint x=0,y=0;
        for(x=z;x>0;x--)
             for(y=54;y>0;y--);
}

void Key_Scan()
{
         uchar Key_Temp=0,i=0;
         if(P3_1!=1)
 　　{
  　　　　delay(10);
  　　　　if(P3_1!=1)
  　　　　{
   　　　　　　while(!P3_1);
   　　　　       Key_Flag=1;
                        for(i=1;i<4;i++)
                        Table_Tx[i]=i+0xaa;
                 }
        }
}

void Send_Code8()
{
         uchar i=0; //loop variable
         for(i=0;i<8;i++) //8-bit data, loop 8 times
        {
                 Set_Count=0x002b; //Prepare to send a square wave of 0.56ms (13*43=560us)
                 Flag = 1; //Set the flag bit (the flag bit is used to control the conversion of high and low levels),

                                   Because of the high level device, the 38K waveform will not change
  　　　　Count=0; //Clear, ready to count
  　　　　TR0=1; //Start the timer
  　　　　while(Count>1; //Move right one bit, ready to send  
 　　}
}


void Send_Code()
{
 　　uchar i=0;

        Set_Count=690; //Prepare to generate a high level of 9ms (13*690=9000)
        Flag = 1; // Set the flag bit and invert it (this flag bit controls the conversion of high and low levels)
        Count=0; //Timer count
        TR0=1; //Start the timer
        while(Count