1135603514.c

MSP430f149的12864显示程序

#include <msp430x14x.h>

#define		P2_0_RS			0x01
#define		P2_1_RW			0x02
#define		P2_2_EN			0x04
#define		P2_3_CS1		0x08
#define		P2_3_CS2		0x40
#define		P2_3_RST		0x80

#define		P5_0_DB0		0x01
#define		P5_1_DB1		0x02
#define		P5_2_DB2		0x04
#define		P5_3_DB3		0x08
#define		P5_4_DB4		0x10
#define		P5_5_DB5		0x20
#define		P5_6_DB6		0x40
#define		P5_7_DB7		0x80

void delay(uint v)
{
  while(v>0)
  {
    v--;
  }
}

void port_ini( void )
{
	P5DIR = 0xFF;
	P5OUT = 0x00;
	
	P2DIR  = 0xFF;
	P2OUT  = P2_3_CS1 | P2_3_CS2 | P2_3_RST;
	P2OUT &=~P2_3_RST;
	_NOP();	
        _NOP();
	P2OUT |= P2_2_EN;
	_NOP();	
        _NOP();
	P2OUT &=~P2_2_EN;
	_NOP();	
        _NOP();
	P2OUT |= P2_3_RST;
	_NOP();
        _NOP();
        delay(400);
}

void write_command( uchar nByte )
{
	P5DIR = 0xFF;

	P2OUT |= P2_3_CS1+P2_3_CS2;
	P2OUT &=~(P2_0_RS+P2_1_RW);
	
	P5OUT = nByte;
        P2OUT |= P2_2_EN;
        delay(10);
	P2OUT &=~P2_2_EN;
        delay(400);
}

void write_char( uchar nByte, uchar CS1, uchar CS2 )
{
	P5DIR = 0xFF;

	if(CS1) P2OUT |= P2_3_CS1;
	else P2OUT &=~P2_3_CS1;
	
	if(CS2) P2OUT |= P2_3_CS2;
	else P2OUT &=~P2_3_CS2;

	P2OUT |= P2_0_RS;      //H，显示数据。L，写指令
        P2OUT &=~P2_1_RW;      //H，读数据。L，写数据

	P5OUT  = nByte;
	P2OUT |= P2_2_EN;      //下降沿锁存数据。结合RW为L时，数据写到数据总线
        delay(3);
        P2OUT &=~P2_2_EN;
}

void clear_lcd( void )
{
	uchar i,j;
	for(i=0;i<8;i++)
	{
		write_command(i|0xB8);
		write_command(0x40);
		for(j=0;j<128;j++)
		{
			if(j<=63) write_char(0,1,0);
			else write_char(0,0,1);
			_NOP();
		}
	}
	
}

void display_hz( uchar *chr, uchar nRow, uchar nCol )
{
	uchar i,tmpCol;
	
	write_command(0xB8|nRow);
	tmpCol=nCol;
	for(i=0;i<16;i++)
	{
		if(tmpCol<=63)
		{
			write_command(0x40|tmpCol);
			write_char(chr[i],1,0);
		}
		else
		{
			write_command(0x40|(tmpCol-64));
			write_char(chr[i],0,1);
		}
		tmpCol++;
	}
	
	write_command(0xB8|nRow+1);
	tmpCol=nCol;
	for(i=0;i<16;i++)
	{
		if(tmpCol<=63)
		{
			write_command(0x40|tmpCol);
			write_char(chr[i+16],1,0);
		}
		else
		{
			write_command(0x40|(tmpCol-64));
			write_char(chr[i+16],0,1);
		}
		tmpCol++;
	}
}

void display_8_16_icon( uchar *chr, uchar nRow, uchar nCol )
{
	uchar i,tmpCol;
	
	write_command(0xB8|nRow);
	tmpCol=nCol;
	for(i=0;i<8;i++)
	{
		if(tmpCol<=63)
		{
			write_command(0x40|tmpCol);
			write_char(chr[i],1,0);
		}
		else
		{
			write_command(0x40|(tmpCol-64));
			write_char(chr[i],0,1);
		}
		tmpCol++;
	}
	
	write_command(0xB8|nRow+1);
	tmpCol=nCol;
	for(i=0;i<8;i++)
	{
		if(tmpCol<=63)
		{
			write_command(0x40|tmpCol);
			write_char(chr[i+8],1,0);
		}
		else
		{
			write_command(0x40|(tmpCol-64));
			write_char(chr[i+8],0,1);
		}
		tmpCol++;
	}
}
void display_char( uchar *chr, uchar nRow, uchar nCol )
{
	uchar i,tmpCol;
	
	write_command(0xB8|nRow);
	tmpCol=nCol;
	for(i=0;i<5;i++)
	{
		if(tmpCol<=63)
		{
			write_command(0x40|tmpCol);
			write_char(chr[i],1,0);
		}
		else
		{
			write_command(0x40|(tmpCol-64));
			write_char(chr[i],0,1);
		}
		tmpCol++;
	}
}