LCD240*128的驱动程序

#include<reg52.h> #include<stdio.h> #include<intrins.h> #define uchar unsigned char #define uint unsigned int //filename:T6963C.H #define DATA_PORT P0 //------------------------------------------- // 管脚定义 //------------------------------------------ sbit CD=P2^0; //数据(L)/命令(H)选择 sbit WRIT=P2^1; //写，低电平有效 sbit CE=P2^2; //使能,低电平有效 sbit RST=P2^3; //=========================================== // 函数声明 //------------------------------------------- void delay_lcd(char); void write_data(char); void write_text(char); void write_com(char); void clr_lcd(char,char,int); void lcd_init_graph(); void lcd_init_text(); void text_out(char a); int asc2lcd(int asc); //-------------------------------------------- // 写数据函数 //-------------------------------------------- void write_data(char dat){ CD=0; //数据 CE=0; //LCD使能 WRIT=0; //写 DATA_PORT=dat; //把数据送到P口 delay_lcd(1); //当晶振较高时加延时 WRIT=1; //关写 CE=1; //关使能 } //-------------------------------------------- // 写数据函数 //-------------------------------------------- void write_text(char text){ CD=0; //数据 CE=0; //LCD使能 WRIT=0; //写 DATA_PORT=text; //把数据送到P口 delay_lcd(1); //当晶振较高时加延时 WRIT=1; //关写 CE=1; //关使能 } //-------------------------------------------- // 写命令函数 //-------------------------------------------- void write_com(char com) { CD=1; //命令 CE=0; WRIT=0; DATA_PORT=com; delay_lcd(1); //当晶振较高时加延时 WRIT=1; CE=1; } void clr_lcd(char x,char y,int length) { int i,place; place=x*30+y; write_data(place&0xff); write_data(place/256); write_com(0x24); //设置 for(i=0;i<length;i++) write_data(0xff); //写入空格，清屏 write_com(0xb2); //关闭自动写 } //-------------------------------------------- // LM4229初始化函数 //-------------------------------------------- void lcd_init_text() { write_data(0); write_data(0); write_com(0x40); //set text home address write_data(30); write_data(0); write_com(0x41); //set text area; write_com(0x84); //text attribute mode write_com(0x94); //text on graphic off } void cursor_on() { write_com(0xA0); write_com(0x93); write_com(0x94); //text on graphic off } void text_out(char a) { write_com(0xb0); //设置数据自动写 write_text(a); write_com(0xb2); //自动复位 } void text_location(int place) { write_data(place&0xff); //写地址低8位 write_data(place/256); //写地址高8位 write_com(0x24); //设置地址 } void print_string(char* str) { int i; int ch; for(i=0;str[i]!=0;i++) { ch=asc2lcd(str[i]); text_out(ch); } } void print_text(char x,char y,char* a) { int place; place=x*30+y; write_data(place&0xff); //写地址低8位 write_data(place/256); //写地址高8位 write_com(0x24); //设置地址 write_com(0xb0); //设置数据自动写 print_string(a); write_com(0xb2); //自动复位 } void clr_text(char x,char y,int len) { int i,place; place=x*30+y; write_data(place&0xff); //写地址低8位 write_data(place/256); //写地址高8位 write_com(0x24); //设置地址 for(i=0;i<len;i++) write_data(0x80); write_com(0xb2); //自动复位 } //-------------------------------------------- // 延时函数 //-------------------------------------------- void delay_lcd(uchar t){ for(;t!=0; t--); } void dl(uint x) { uint i,j; for(j=0;j<x;j++) for(i=0;i<110;i++); } //=================================================== int asc2lcd(int asc){ uint r; r=asc-32; return r; } main() { int place=5; char ch=0x00; RST=1; lcd_init_text(); text_location(place); while(1) { int i,n,m; for(i=0;i<15;i=i+3) { if(i!=14&&i!=15) { n=i+1; m=i+2; } else if(i==14) { n=15; m=0; } else if(i==15) { n=0; m=1; } print_text(i,0,"ZUOSONGYAN"); dl(200); print_text(i,0," "); print_text(n,0,"201106050430"); dl(200); print_text(n,0," "); print_text(m,0,"dianzi114"); dl(200); print_text(m,0," "); } } }