mycommmain.c

这是符合国家一级汉字标准的汉字显示液晶模块程序

#pragma		SFR		//special function register
#pragma 	NOP	
#pragma		DI	       
#pragma		EI

/*
**PROJECT	= HDTV REMOTE CONTROL RECEPTION PROCESSING
**MODULE	= MyCommMain.c
**SHORT DESC.	= UART(half duplex)
**DEVICE	= UPD789417
**VERSION	= 0.1
**DATE		= 08.08.2003
**LAST CHANGE	= -
*/

#include "MyDefine.h"
#include "MyCommIO.h" 

extern void GetDataFromReception();
extern void CommReceptionEnabled();
extern void InitializeCom();
extern void SetDataTransmitBuffer();

extern Uchar g_bufTransmit[SERIAL_BUF_TRANSMIT];		//Transmit buffer
extern sreg Uchar *g_p_bufTransmit;
extern Uchar g_keyValue;


bit g_btReceptionEnd;
bit g_btTransmitStart;
//bit g_btTransmitOneTest;

//Uchar message[] = "This is a test to see if the interrupt driven serial
//                   I/O routines really work.";

void main (void)
{		
	//InitializeCom();           /* initialize interrupt driven serial I/O */
	
	//The two statements are only used in COMM debugging programme.
	//g_btReceptionEnd = 1;
	
	g_btTransmitStart = 1;       //Test????
	//g_btTransmitOneTest = 1;
			
	while (TRUE)		
	{
		//This block is a test routine of transmission.
		//if(g_btTransmitOneTest)
		//{
			//g_btTransmitOneTest = 0;
			
			//g_keyValue = 0x8;
		
			//SetDataTransmitBuffer(4);
		
			//g_btTransmitStart = 1;
			
			//g_btReceptionEnd = 1; //temporarily!			
		//}
				
		
		
		//The following part of "if" block belongs to main inquiry routine.
	  //Transmit data only when reception is finished.	
		//g_btReceptionEnd is set to 1 in the initial status.		
		//Note:set g_btReceptionEnd to 1 after 20ms when reception ends.
		if(g_btReceptionEnd) 		
		{										 
			NOP();
		  NOP();
		  
		  g_btReceptionEnd = 0;
		
		  GetDataFromReception(); //Process data after reception ends.		
		  
		  //???g_btTransmitStart is set to 1 in INTST00 when transmit the 
		  //???second data.	
		  
		  //Clear g_btTransmitStart when having transmited the last data in 
		  //Inter_ST().
		  if(g_btTransmitStart)    
		  {
		  	g_btTransmitStart = 0;    //Test!!!!???
		  	 
		  	g_keyValue = 0x8;         //Test!!!!
                          
        SetDataTransmitBuffer(4); //Test!!!!
                         		  	
		  	STIF00 = 0;                                        																										
		               	                                       																										
		    TXE00 = 1;					//Transmission enabled         																										
		                                                       																										
		    STMK00 = 0; 
		    
		    //The transmission buffer pointer is initialized.
		    g_p_bufTransmit = g_bufTransmit;   //The transmit buffer pointer		    																		                                       																										
		                                                       																										
		    TXS00 = WAKE_CODE;   	//Send wake code firstly.																										 	
		  }			                         	     
		  else
		  {
		  	 CommReceptionEnabled();
		  }	     	  		
		}	
	}	
}