//******************************************************************************
//ZhaoZhendong
//Lierda, Inc
//July 2004
//Built with IAR Embedded Workbench Version: 3.20A
//******************************************************************************
#include "LCD_DEFINE.H"
void lcd_init(void)
{
LCD_DATA_OUT = 0x00;
LCD_DATA_DIR = 0xFF;
LCD_CON_OUT = LCD_CS1+LCD_CS2+LCD_RST;
LCD_CON_DIR |= LCD_DI+LCD_RW+LCD_EN+LCD_CS1+LCD_CS2+LCD_RST;
LCD_CON_OUT &= ~LCD_RST;
_NOP();
_NOP();
LCD_CON_OUT |= LCD_EN;
_NOP();
_NOP();
LCD_CON_OUT &= ~LCD_EN;
_NOP();
_NOP();
LCD_CON_OUT |= LCD_RST;
_NOP();
_NOP();
}
void write_command(unsigned char command)
{
LCD_DATA_DIR = 0xFF;
LCD_CON_OUT |= LCD_CS1 + LCD_CS2;
LCD_CON_OUT &= ~(LCD_RW + LCD_DI);
LCD_DATA_OUT = command;
LCD_CON_OUT |= LCD_EN;
LCD_CON_OUT &= ~LCD_EN;
}
void write_data( unsigned char data, unsigned char CS1, unsigned char CS2 )
{
LCD_DATA_DIR = 0xFF;
if(CS1) LCD_CON_OUT |= LCD_CS1;
else LCD_CON_OUT &=~LCD_CS1;
if(CS2) LCD_CON_OUT |= LCD_CS2;
else LCD_CON_OUT &=~LCD_CS2;
LCD_CON_OUT |= LCD_DI;
LCD_CON_OUT &=~LCD_RW;
LCD_DATA_OUT = data;
LCD_CON_OUT |= LCD_EN;
LCD_CON_OUT &=~LCD_EN;
}
void clear_lcd(void)
{
unsigned char i,j;
for(i=0;i<8;i++)
{
write_command(SET_X|i);
write_command(SET_Y);
for(j=0;j<128;j++)
{
if(j<=63)write_data(0,1,0);
else write_data(0,0,1);
_NOP();
}
}
}
void display( unsigned char *chr, unsigned char nRow, unsigned char nCol,
unsigned char highth,unsigned char wideth )
//*chr 显示数据的地址,nRow 在显示屏上第几行,nCol 在显示屏上第几列
//highth 字体的高度,wideth 字体的宽度
//128*64有8行,128列
{
unsigned char i,tmpCol,tmpRow,h,m;
unsigned int j;
tmpRow = nRow;
m=0;
for(h=0;h<highth;h=h+8)
{
write_command(SET_X|tmpRow);
tmpCol=nCol;
for(i=0;i<wideth;i++)
{
if(tmpCol<64)
{write_command(SET_Y|tmpCol);write_data(chr[i+j],1,0);}
else
{write_command(SET_Y|(tmpCol-64));write_data(chr[i+j],0,1);}
tmpCol++;
}
m++;
j=m*wideth;
tmpRow++;
}
}