原创转载　　：诺基亚 3310 液晶屏 LCD 驱动

 2008-11-27 13:55  7343 6 6 分类: MCU/ 嵌入式

诺基亚3310液晶屏驱动程序

#include "global.h"
#include "nokia3310.h"
#include "font.h"
#include "bmp.h"

void LCDClear(void)//LCD清屏
{
unsigned int i;
LCD_write_byte(0x0C,0);
LCD_write_byte(0x80,0);
for(i=0;i<504;i++)
{
LCD_write_byte(0,1);
}
}

void LCD_set_XY(uchar X,uchar Y)//设置LCD坐标函数
{
LCD_write_byte(0x40|Y,0);//列
LCD_write_byte(0x80|X,0);//行
}

void LCDInit(void)//LCD初始化
{
P0&=~LCD_RST;//产生一个让LCD复位的低电平脉冲
nop();
P0|=LCD_RST;
P0&=~LCD_CE;//关闭LCD
nop();
P0|= LCD_CE;//使能LCD
nop();
LCD_write_byte(0x21,0);//使用扩展命令设置LCD模式
LCD_write_byte(0xc8,0);//设置偏置电压
LCD_write_byte(0x06,0);//温度校正
LCD_write_byte(0x13,0);//1:48
LCD_write_byte(0x20,0);//使用基本命令
LCDClear();// 清屏
LCD_write_byte(0x0c,0);//设定显示模式，正常显示
P0&=~LCD_CE;//关闭LCD
}

void DisplayBmp(void)
{
uchar X,Y;
for(X=0;X<84;X++)
{
for(Y=0;Y<6;Y++)
{
LCD_set_XY(X,Y);
LCD_write_byte(Bmp[BmpPointer][X*6+Y],1);
}
}
DisCount++;
if(DisCount>20)
{
DisCount=0;
BmpPointer++;
if(BmpPointer>1)
{
BmpPointer=0;
}
}
}
/*-----------------------------------------------------------------------
LCD_write_chinese_string: 在LCD上显示汉字

输入参数：X、Y ：显示汉字的起始X、Y坐标；
ch_with ：汉字点阵的宽度
num ：显示汉字的个数；
line ：汉字点阵数组中的起始行数
row ：汉字显示的行间距
编写日期：2008-6-11
最后修改日期：2008-6-12
-----------------------------------------------------------------------*/

void Nokia3310(void)
{
uchar X;
uchar Num;
uint FontAddr;
if(GetPowerFlag==0)
{
DisplayBmp();
return;
}
for(Num=0;Num<4;Num++)
{
for(X=0;X<BIGX;X++)
{
FontAddr=(X*2)+(Num*BIGX*2);
LCD_set_XY(X+Num*BIGX,0);
LCD_write_byte(Font_CN_BIG[FontAddr],1);
LCD_set_XY(X+Num*BIGX,1);
LCD_write_byte(Font_CN_BIG[FontAddr+1],1);
}
}
LCD_set_XY(80,0);
LCD_write_byte(0x00,1);
LCD_write_byte(0x00,1);
LCD_write_byte(0x00,1);
LCD_write_byte(0x00,1);
LCD_set_XY(80,1);
LCD_write_byte(0x00,1);
LCD_write_byte(0x00,1);
LCD_write_byte(0x00,1);
LCD_write_byte(0x00,1);
LCD_set_XY(80,2);
LCD_write_byte(0x00,1);
LCD_write_byte(0x00,1);
LCD_write_byte(0x00,1);
LCD_write_byte(0x00,1);

for(Num=0;Num<4;Num++)
{
for(X=0;X<16;X++)
{
FontAddr=(X*2)+(Num*16*2);
LCD_set_XY(X+20+Num*16,2);
LCD_write_byte(Font_CN[FontAddr],1);
LCD_set_XY(X+20+Num*16,3);
LCD_write_byte(Font_CN[FontAddr+1],1);
}
}
for(Num=0;Num<6;Num++)
{
for(X=0;X<14;X++)
{
FontAddr=(X*2)+(Num*14*2);
LCD_set_XY(X+Num*14,4);
if((WorkMode==ShaoShuiM)&&((Num==0)||(Num==1)))
{
LCD_write_byte(~Font_CN_MENU[FontAddr],1);
}
else if((WorkMode==PaoChaM)&&((Num==2)||(Num==3)))
{
LCD_write_byte(~Font_CN_MENU[FontAddr],1);
}
else if((WorkMode==HuoGuoM)&&((Num==4)||(Num==5)))
{
LCD_write_byte(~Font_CN_MENU[FontAddr],1);
}
else
{
LCD_write_byte(Font_CN_MENU[FontAddr],1);
}
LCD_set_XY(X+Num*14,5);
if((WorkMode==ShaoShuiM)&&((Num==0)||(Num==1)))
{
LCD_write_byte(~Font_CN_MENU[FontAddr+1],1);
}
else if((WorkMode==PaoChaM)&&((Num==2)||(Num==3)))
{
LCD_write_byte(~Font_CN_MENU[FontAddr+1],1);
}
else if((WorkMode==HuoGuoM)&&((Num==4)||(Num==5)))
{
LCD_write_byte(~Font_CN_MENU[FontAddr+1],1);
}
else
{
LCD_write_byte(Font_CN_MENU[FontAddr+1],1);
}
}
}
}

void LCD_write_byte(uchar Byte,uchar Cmd)//Cmd=0传送命令否则传送数据
{
unsigned char i;
P0&=~LCD_CE;//使能LCD
if(Cmd==0)
P0&=~LCD_DC;//传送命令
else P0|=LCD_DC;//传送数据
for(i=0;i<8;i++)
{
P0&=~SPI_CLK;
if((Byte&0x80)==0)P0&=~SPI_MOSI;
else P0|=SPI_MOSI;
P0|=SPI_CLK;
Byte<<=1;
}
P0|=LCD_CE;//关闭LCD
}