0361.c

NEC 78f0361 LCD 的驱动程序

#pragma sfr
#pragma DI
#pragma EI
#pragma nop
void LcdDrvCtrWrite1Byte( unsigned char addr, unsigned char data );
void LcdDrvSegWrite( unsigned char *src, unsigned char addr, unsigned char size );
void I2cPutData( unsigned char data );
unsigned char I2cPutAddress( unsigned char data );
void LcdDrvClkOut( void );
void I2cWait( void );
unsigned char  I2cStartCondition( void );
void I2cStopCondition( void );
void I2cInit( void );
void LcdDrvInit( void ) ;
void LcdDrvOnWait( void );
void I2cGetDataAckSet( unsigned char *src );
void I2cGetDataNackSet( unsigned char *src );
void EeprgSegWrite( unsigned char *src, unsigned char addr, unsigned char size );
void EeprgSegRead( unsigned char *src, unsigned char addr, unsigned char size );
void movdata1(unsigned char *mptr,unsigned char *dptr,unsigned char no,unsigned char xishu);

void movdata1(unsigned char *mptr,unsigned char *dptr,unsigned char no,unsigned char xishu)
{
	char i,tmp;
	for(i=0;i<no;i++)
	{	
		tmp=*mptr;	
		tmp+=xishu;
		*dptr=tmp;
		dptr++;
		mptr++;
			}
			}


void I2cGetDataNackSet( unsigned char *src )
{
	if( !TRC0 )
	{
	/* Receive data exists */
		/*-- Cancels wait and sets ACK transmission --*/
		 WREL0 = 1;				/* Cancels wait		 */
		// WTIM0=0;
		ACKE0 = 0;				/* Sets ACK transmission */
		/*-- Wait for completion of reception  --*/
		I2cWait();
		/*-- Data reception --*/
		*src = IIC0;
	}
}

void I2cGetDataAckSet( unsigned char *src )
{

	
	if( !TRC0 )
	{
	/* Received data exists  */
		/*-- Cancels wait and sets ACK transmission --*/
	    WREL0 = 1;				/* Cancels wait	*/
		//WTIM0=0;
		ACKE0 = 1;				/* Sets ACK transmission */
		/*-- Wait for completion of reception --*/
		I2cWait();
		/*-- Data reception --*/
		*src = IIC0;
	}
}
void LcdDrvCtrWrite1Byte( unsigned char addr, unsigned char data )
 {
  // IICE0 = 1;  //       I2cEnable();
//	LcdDrvClkOut();	
	/*-- Start condition --*/
  I2cStartCondition();	
	/*-- Slave ID LCDSEG --*/	
	I2cPutAddress( 0X70 );	
	/*-- Data address --*/
	I2cPutData( addr );
	I2cPutData( data);	
	/*-- Transmits stop condition  --*/
	I2cStopCondition();	
}

void LcdDrvSegWrite( unsigned char *src, unsigned char addr, unsigned char size )
{
	unsigned char cnt;
	/*-- Enables I2C operations and clock output (possible when OFF)--*/
    IICE0 = 1;  //       I2cEnable();
	/*-- Enables clock output to LCD chip --*/
	LcdDrvClkOut();
	/*-- Start condition --*/
	I2cStartCondition();	
	I2cPutAddress(0X72);	
	I2cPutData(addr) ;	
	/*--  Writes segment data  --*/	
		for( cnt = 0; cnt < size; cnt++ )
		{
			I2cPutData( *src & 0x0f ); 
			I2cPutData(( *src >> 4 ) & 0x0f );				
			src++;
		}		
	/*-- Transmits stop condition  --*/
	I2cStopCondition();
}


void I2cPutData( unsigned char data )
{
	/*-- Sets data --*/
	IIC0 = data;
	/*-- Wait for transmission completion  --*/
	I2cWait();
	/*-- ACK detection --*/
}

unsigned char I2cPutAddress( unsigned char data )
{
	if( STD0 ){
		I2cPutData( data );
	}
	return	1;
}
 
 void LcdDrvClkOut( void )
{
	PM14.0=0;
  CKS.4= 1;
}
 void I2cWait( void )
{
	while( !IICIF0 ){
	}
	IICIF0 = 0;
}

unsigned char I2cStartCondition( void )
 {

	if( !IICBSY ){
	/* Bus release status  */
		/*--  Sets start condition --*/
	    STT0 = 1;
		return	 0;
	}   
    while(!STD0)
      ;
     STT0 = 1;    
}


void I2cStopCondition( void )
   {
   SPT0 = 1;
}   
void I2cInit( void )
    {
    PM6.0=0;
    PM6.1=0;
    IICE0=0;
    IICX0=0;
    IICCL0=0;
    IICRSV=1;
    STCEN=0;
    IICC0=0X88;
    SPT0=1;
    }
    
void LcdDrvInit( void ) 
 {
 I2cInit();
 P13.0=1;
 CKS=0X07;
 LcdDrvClkOut(); 
 LcdDrvCtrWrite1Byte(0x00, 0x82 );
	/*-- Selects display mode --*/
 LcdDrvCtrWrite1Byte( 0x01,0);	
 LcdDrvCtrWrite1Byte( 0x02, 0xc0);	
 }
 
void LcdDrvOnWait( void )
{
 unsigned char i;	/*-- Enables I2C operation --*/
  IICE0 = 1;  //       I2cEnable();	
	/*-- Enables clock output to LCD chip  --*/
	LcdDrvClkOut();	
	/*-- Sets LCD step-up level and contrast--*/
  LcdDrvCtrWrite1Byte( 0x03, 0x00);	
	/*-- Enables LCD step-up  --*/
  LcdDrvCtrWrite1Byte( 0x01, 0x20);
  for(i=0;i<255;i++)
  {
  NOP();
   NOP();
   NOP(); 
  }
  
    LcdDrvCtrWrite1Byte( 0x01, 0x60);
    LcdDrvCtrWrite1Byte( 0x01, 0xe0);
}
unsigned char aa[5]={0xff,0xff,0xff,0xff,0xff};
unsigned char buff[20]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
void main(void)
{ 
unsigned char i;
  DI();//  EI(); 
  movdata1(buff,aa,3,0x33); 
 // IMS=0XC6; 
  LcdDrvInit();
  LcdDrvOnWait();
  EI();   	 	// enable all interrupts
  LcdDrvSegWrite( aa, 0x00,0x05);


  
while(1)
{
 LcdDrvSegWrite( aa, 0x00,0x05);
 //for(i=0;i<20;i++)
// buff[i]=0x55; 
 // EeprgSegWrite(buff,0,10 );
 EeprgSegRead(buff,0,10);
 for(i=0;i<20;i++)
buff[i]=0x88;
 //EeprgSegWrite(buff,0,10 );
 LcdDrvSegWrite( aa, 0x6,0x05);
 DI();
 EeprgSegRead(buff,0,20);
 for(i=0;i<10;i++)
buff[i]=0x55; 
 
 EeprgSegWrite(buff,6,10 );
 
 }
 
 
}
void EeprgSegWrite( unsigned char *src, unsigned char addr, unsigned char size )
{
	unsigned char cnt;
	/*-- Enables I2C operations and clock output (possible when OFF)--*/
   IICE0 = 1;  //       I2cEnable();
	/*-- Enables clock output to LCD chip --*/
	//LcdDrvClkOut();
	/*-- Start condition --*/
	PM0.0=0;
	P0.0=0;
	I2cStartCondition();	
	I2cPutAddress(0Xa0);	
	I2cPutData(addr) ;	
	/*--  Writes segment data  --*/	
		for( cnt = 0; cnt < size; cnt++ )
		{
			I2cPutData(*src); 					
			src++;
		}		
	/*-- Transmits stop condition  --*/
	I2cStopCondition();
	
}


void EeprgSegRead( unsigned char *src, unsigned char addr, unsigned char size )
{
	unsigned char i;
	/*-- Enables I2C operations and clock output (possible when OFF)--*/
    IICE0 = 1;  //       I2cEnable();
	/*-- Enables clock output to LCD chip --*/
	//LcdDrvClkOut();
	/*-- Start condition --*/
	I2cStartCondition();	
	I2cPutAddress(0Xa0);	
	I2cPutData(addr) ;
    STT0 = 1;
    while(!STD0)
      ;
    I2cPutData(0xA1) ;// IIC0 = 0xA1;
	//I2cStartCondition();
	//I2cPutAddress(0Xa1);		
	/*--  Writes segment data  --*/		
	for(; size>0 ; size-- )
	  {
	  I2cGetDataAckSet( src );
	   src++;
	  }	  
	 I2cGetDataNackSet(src); 
	/*-- Transmits stop condition  --*/
	I2cStopCondition();
}