例5-10 LCD12864显示.zip

#include <reg51.h> #define uchar signed char #define uint unsigned int // 常量定义 #define lcdrow 0xc0//设置起始行 #define lcdpage 0xb8//设置起始页 #define lcdcolumn 0x40//设置起始列 #define c_page_max 0x08//页数最大值 #define c_column_max 0x40//列数最大值 //端口定义 #define bus P0 sbit rst=P2^0; sbit e=P2^2; sbit rw=P2^3; sbit rs=P2^4; sbit cs1=P2^5; sbit cs2=P2^6; //函数申明 void delayms(uint); //延时n ms void delayus10(void);//延时10us void select(uchar); //选择屏幕 void send_cmd(uchar); //写命令 void send_data(uchar); //写数据 void clear_screen(void);//清屏 void initial(void); //LCD初始化 void display_zf(uchar,uchar,uchar,uchar); //显示字符 void display_hz(uchar,uchar,uchar,uchar); //显示汉字 void display(void); //在LCD上显示 //字符表 //*-- 宋体12; 此字体下对应的点阵为：宽x高=8x16 --*/ //取模方式：纵向取模下高位，从上到下，从左到右取模 uchar code table_zf[]={ //*-- 文字: P --*/ 0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00, //*-- 文字: R --*/ 0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20, //*-- 文字: O --*/ 0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00, //*-- 文字: T --*/ 0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00, //*-- 文字: E --*/ 0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00, //*-- 文字: U --*/ 0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00, //*-- 文字: S --*/ 0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00 }; //汉字表 //*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/ //取模方式：纵向取模下高位，从上到下，从左到右取模 uchar code table_hz[ ]={ //*-- 文字: 电 --*/ 0x00,0x00,0xF8,0x48,0x48,0x48,0x48,0xFF,0x48,0x48,0x48,0x48,0xF8,0x00,0x00,0x00, 0x00,0x00,0x0F,0x04,0x04,0x04,0x04,0x3F,0x44,0x44,0x44,0x44,0x4F,0x40,0x70,0x00, //*-- 文字: 子 --*/ 0x00,0x00,0x02,0x02,0x02,0x02,0x02,0xE2,0x12,0x0A,0x06,0x02,0x00,0x80,0x00,0x00, 0x01,0x01,0x01,0x01,0x01,0x41,0x81,0x7F,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00, //*-- 文字: 设 --*/ 0x40,0x41,0xCE,0x04,0x00,0x80,0x40,0xBE,0x82,0x82,0x82,0xBE,0xC0,0x40,0x40,0x00, 0x00,0x00,0x7F,0x20,0x90,0x80,0x40,0x43,0x2C,0x10,0x10,0x2C,0x43,0xC0,0x40,0x00, //*-- 文字: 计 --*/ 0x20,0x21,0x2E,0xE4,0x00,0x00,0x20,0x20,0x20,0x20,0xFF,0x20,0x20,0x20,0x20,0x00, 0x00,0x00,0x00,0x7F,0x20,0x10,0x08,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00, //*-- 文字: 与 --*/ 0x00,0x00,0x00,0x00,0x7E,0x48,0x48,0x48,0x48,0x48,0x48,0x48,0x48,0xCC,0x08,0x00, 0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x24,0x46,0x44,0x20,0x1F,0x00,0x00, //*-- 文字: 创 --*/ 0x40,0x20,0xD0,0x4C,0x43,0x44,0x48,0xD8,0x30,0x10,0x00,0xFC,0x00,0x00,0xFF,0x00, 0x00,0x00,0x3F,0x40,0x40,0x42,0x44,0x43,0x78,0x00,0x00,0x07,0x20,0x40,0x3F,0x00, //*-- 文字: 新 --*/ 0x20,0x24,0x2C,0x35,0xE6,0x34,0x2C,0x24,0x00,0xFC,0x24,0x24,0xE2,0x22,0x22,0x00, 0x21,0x11,0x4D,0x81,0x7F,0x05,0x59,0x21,0x18,0x07,0x00,0x00,0xFF,0x00,0x00,0x00, //*-- 文字: 的 --*/ 0x00,0xF8,0x8C,0x8B,0x88,0xF8,0x40,0x30,0x8F,0x08,0x08,0x08,0x08,0xF8,0x00,0x00, 0x00,0x7F,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x03,0x26,0x40,0x20,0x1F,0x00,0x00, //*-- 文字: 最 --*/ 0x40,0x40,0xC0,0x5F,0x55,0x55,0xD5,0x55,0x55,0x55,0x55,0x5F,0x40,0x40,0x40,0x00, 0x20,0x20,0x3F,0x15,0x15,0x15,0xFF,0x48,0x23,0x15,0x09,0x15,0x23,0x61,0x20,0x00, //*-- 文字: 佳 --*/ 0x40,0x20,0xF0,0x1C,0x47,0x4A,0x48,0x48,0x48,0xFF,0x48,0x48,0x4C,0x68,0x40,0x00, 0x00,0x00,0xFF,0x00,0x40,0x44,0x44,0x44,0x44,0x7F,0x44,0x44,0x46,0x64,0x40,0x00, //*-- 文字: 平 --*/ 0x00,0x01,0x05,0x09,0x71,0x21,0x01,0xFF,0x01,0x41,0x21,0x1D,0x09,0x01,0x00,0x00, 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0xFF,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00, //*-- 文字: 台 --*/ 0x00,0x00,0x40,0x60,0x50,0x48,0x44,0x63,0x22,0x20,0x20,0x28,0x70,0x20,0x00,0x00, 0x00,0x00,0x00,0x7F,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x7F,0x00,0x00,0x00,0x00 }; void main() { initial(); display(); clear_screen(); display(); while(1); } //延时10us void delayus10(void) { uchar i=5; while(--i); } //延时10ms void delayms(uint j) { uchar i=250; for(;j>0;j--){ while(--i); i=249;while(--i);i=250;} } //屏幕选择-cs=0选择双屏,cs=1选择左半屏,cs=2选择右半屏 void select(uchar cs) { if(cs==0)cs1=1,cs2=1; else if(cs==1)cs1=1,cs2=0; else cs1=0,cs2=1; } //写命令 void send_cmd(uchar cmd) { rs=0;rw=0; bus=cmd;delayus10();e=1;e=0; } //写数据 void send_data(uchar dat) { rs=1;rw=0; bus=dat;delayus10();e=1;e=0; } //清屏 void clear_screen(void) { uchar c_page,c_column; select(0); for(c_page=0;c_page<c_page_max;c_page++) { send_cmd(c_page+lcdpage); send_cmd(lcdcolumn); for(c_column=0;c_column<c_column_max;c_column++) { send_data(0X00); } } } //LCD初始化 void initial(void) { select(0); rst=0;delayms(10);rst=1; clear_screen(); send_cmd(lcdrow); send_cmd(lcdcolumn); send_cmd(lcdpage); send_cmd(0x3f); } //写字符 //c_page为当前页,c_column为当前列，num为字符数， //offset为所取字符在显示缓冲区中的偏移单位 void display_zf(uchar c_page,uchar c_column,uchar num,uchar offset) { uchar c1,c2,c3; for(c1=0;c1<num;c1++) {for(c2=0;c2<2;c2++) {for(c3=0;c3<8;c3++) { send_cmd(lcdpage+c_page+c2); send_cmd(lcdcolumn+c_column+c1*8+c3); send_data(table_zf[(c1+offset)*16+c2*8+c3]); } } } } //写汉字 //c_page为当前页,c_column为当前列，num为字符数， //offset为所取汉字在显示缓冲区中的偏移单位 void display_hz(uchar c_page,uchar c_column,uchar num,uchar offset) { uchar c1,c2,c3; for(c1=0;c1<num;c1++) {for(c2=0;c2<2;c2++) {for(c3=0;c3<16;c3++) { send_cmd(lcdpage+c_page+c2); send_cmd(lcdcolumn+c_column+c1*16+c3); send_data(table_hz[(c1+offset)*32+c2*16+c3]); } } } } //在LCD上显示 void display(void) { select(1); display_zf(0,40,3,0); display_hz(2,0,4,0); display_hz(4,32,2,8); select(2); display_zf(0,0,4,3); display_hz(2,0,4,4); display_hz(4,0,2,10); }