文件名称:
LCD12864显示汉字和图案(C语言)
开发工具:
文件大小: 40kb
下载次数: 0
上传时间: 2012-02-05
详细说明: /*********************************************************** 实验名称:LCD12864显示汉字示例程序 程序说明:烧好程序,正确插上LCD12864即可观察到LCD上显示的汉字。 注意:USB供电可能不足,这时需要用变压器供电。 ***********************************************************/ /*********************************************************** 模块名称:st7920 并行方式驱动12864液晶驱动 功能概要:st7920显示驱动 完成日期:2008.07.08 驱动芯片:st7920 ***********************************************************/ #include #define uint unsigned int #define uchar unsigned char #define x1 0x80 #define x2 0x88 #define y 0x80 #define comm 0 #define dat 1 sbit RS = P2^0; //H=data; L="command"; sbit RW = P2^1; //H=read; L="write"; sbit E = P2^2; //input enable; sbit PSB= P2^3; //H=并口; L="串口"; sbit RST= P2^5; //Reset Signal 低电平有效 sbit busy=P1^7; //lcd busy bit void wr_lcd (uchar dat_comm,uchar content); void chk_busy (void); void delay (uint us); uchar code tab31[]={ " RF-X1开发板 " " 您学习的首选 " }; uchar code tab32[]={ /*-- 调入了一幅图像:F:\梁\画图\HOCO12832.bmp --*/ /*-- 宽度x高度=128x32 --*/ 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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }; /****************************************************************************************** * 函数名称 : * 功能描述 : * 参数 : 参数名称: 输入/输出? 类型 描述 * * 返回值 : * 作者 : * 创建日期 :2007-12-19 * 全局变量 : * 全局静态变量: * 局部静态变量: *----------------------------------------修改历史------------------------------------------ * 当前版本 : 修改人: 修改日期: * 修改说明 : ******************************************************************************************/ void init_lcd (void) { RST = 1; PSB = 1; wr_lcd(comm,0x30); /*30---基本指令动作*/ wr_lcd(comm,0x01); /*清屏,地址指针指向00H*/ wr_lcd(comm,0x06); /*光标的移动方向*/ wr_lcd(comm,0x0c); /*开显示,关游标*/ } /****************************************************************************************** * 函数名称 :chn_disp * 功能描述 : 显示汉字或字符 * 参数 : 参数名称: 输入/输出? 类型 描述 * * 返回值 : * 作者 : * 创建日期 :2007-12-19 * 全局变量 : * 全局静态变量: * 局部静态变量: *----------------------------------------修改历史------------------------------------------ * 当前版本 : 修改人: 修改日期: * 修改说明 : ******************************************************************************************/ void chn_disp(uchar code *chn) { uchar i,j; wr_lcd(comm,0x30); wr_lcd(comm,0x80); for(j=0;j<4;j++) { for(i=0;i<16;i++) wr_lcd(dat,chn[j*16+i]); } } /****************************************************************************************** * 函数名称 :chn_disp1 * 功能描述 : 上半屏显示汉字或字符 * 参数 : 参数名称: 输入/输出? 类型 描述 * * 返回值 : * 作者 : * 创建日期 :2007-12-19 * 全局变量 : * 全局静态变量: * 局部静态变量: *----------------------------------------修改历史------------------------------------------ * 当前版本 : 修改人: 修改日期: * 修改说明 : ******************************************************************************************/ void chn_disp1(uchar code *chn) { uchar i,j; wr_lcd(comm,0x30); wr_lcd(comm,0x80); j=0; for(i=0;i<16;i++) wr_lcd(dat,chn[j*16+i]); wr_lcd(comm,0x90); j=1; for(i=0;i<16;i++) wr_lcd(dat,chn[j*16+i]); } /****************************************************************************************** * 函数名称 :img_disp * 功能描述 : 显示图形 * 参数 : 参数名称: 输入/输出? 类型 描述 * * 返回值 : * 作者 : * 创建日期 :2007-12-19 * 全局变量 : * 全局静态变量: * 局部静态变量: *----------------------------------------修改历史------------------------------------------ * 当前版本 : 修改人: 修改日期: * 修改说明 : ******************************************************************************************/ void img_disp(uchar code *img) { uchar i,j; for(j=0;j<32;j++) { for(i=0;i<8;i++) { wr_lcd(comm,0x34); wr_lcd(comm,y+j); wr_lcd(comm,x1+i); wr_lcd(comm,0x30); wr_lcd(dat,img[j*16+i*2]); wr_lcd(dat,img[j*16+i*2+1]); } } for(j=32;j<64;j++) { for(i=0;i<8;i++) { wr_lcd(comm,0x34); wr_lcd(comm,y+j-32); wr_lcd(comm,x2+i); wr_lcd(comm,0x30); wr_lcd(dat,img[j*16+i*2]); wr_lcd(dat,img[j*16+i*2+1]); } } wr_lcd (comm,0x36); } /****************************************************************************************** * 函数名称 :img_disp1 * 功能描述 : 下半屏显示图形 * 参数 : 参数名称: 输入/输出? 类型 描述 * * 返回值 : * 作者 : * 创建日期 :2007-12-19 * 全局变量 : * 全局静态变量: * 局部静态变量: *----------------------------------------修改历史------------------------------------------ * 当前版本 : 修改人: 修改日期: * 修改说明 : ******************************************************************************************/ void img_disp1(uchar code *img) { uchar i,j; for(j=0;j<32;j++) { for(i=0;i<8;i++) { wr_lcd(comm,0x34); wr_lcd(comm,y+j); wr_lcd(comm,x2+i); wr_lcd(comm,0x30); wr_lcd(dat,img[j*16+i*2]); wr_lcd(dat,img[j*16+i*2+1]); } } wr_lcd(comm,0x36); } /****************************************************************************************** * 函数名称 :lat_disp * 功能描述 : 显示点阵 * 参数 : 参数名称: 输入/输出? 类型 描述 * * 返回值 : * 作者 : * 创建日期 :2007-12-19 * 全局变量 : * 全局静态变量: * 局部静态变量: *----------------------------------------修改历史------------------------------------------ * 当前版本 : 修改人: 修改日期: * 修改说明 : ******************************************************************************************/ void lat_disp(uchar data1,uchar data2) { uchar i,j,k,x; x=x1; for(k=0;k<2;k++) { for(j=0;j<16;j++) { for(i=0;i<8;i++) { wr_lcd(comm,0x34); wr_lcd(comm,y+j*2); wr_lcd(comm,x+i); wr_lcd(comm,0x30); wr_lcd(dat,data1); wr_lcd(dat,data1); } for(i=0;i<8;i++) { wr_lcd(comm,0x34); wr_lcd(comm,y+j*2+1); wr_lcd(comm,x+i); wr_lcd(comm,0x30); wr_lcd(dat,data2); wr_lcd(dat,data2); } } x=x2; } wr_lcd(comm,0x36); } /****************************************************************************************** * 函数名称 :con_disp * 功能描述 : 当data1=0xff,data2=0xff时,在x0,y0处反白显示16xl*yl * 参数 : 参数名称: 输入/输出? 类型 描述 * * 返回值 : * 作者 : * 创建日期 :2007-12-19 * 全局变量 : * 全局静态变量: * 局部静态变量: *----------------------------------------修改历史------------------------------------------ * 当前版本 : 修改人: 修改日期: * 修改说明 : ******************************************************************************************/ void con_disp(uchar data1,uchar data2,uchar x0,uchar y0,uchar xl,uchar yl) { uchar i,j; for(j=0;j
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