12864液晶显示器ST7920显示程序并口.docx
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12864液晶显示器ST7920显示程序并口
12864液晶显示器（ST7920）显示程序（并口）附字模软件作者：
纪小年16七月2009时间：
下午10:
25andhave10条评论
前两天写了一个ST7920控制12864显示的串口程序，今天瞎逛的时候发现了这个超强悍的并口程序，转载一下。
来源：
CnChina
做了比较详细的注释，看不懂的可以问我。
下面的图片中12864所显示的logo就是我用这个程序得到的。
附程序：
/******************************************************************************
Copyright2007
Allrightsreserved.
文件名：
.c
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
取代版本：
0.0.1
修改人：
pulan
完成日期：
2007.07.08
升级说明：
create
CPU:
stc89c58主频：
11.0592M
液晶型号：
128*64生产厂家：
驱动芯片：
st7920
******************************************************************************/
#include
#defineuintunsignedint
#defineucharunsignedchar
#definex10x80//10000000
#definex20x88//10001000
#definey0x80//10000000
#definecomm0//定义传送指令代码为0
#definedat1//定义传送数据代码为1
sbitRS=P2^0;//H=数据;L=指令;
sbitRW=P2^1;//H=读操作;L=写操作;
sbitE=P2^3;//使能端
sbitPSB=P2^4;//H=并口;L=串口;
sbitRST=P2^2;//复位信号低电平有效
sbitbusy=P0^7;//LCD忙信号
voidwr_lcd（uchardat_comm,ucharcontent）;
voidchk_busy（void）;
voiddelay（uintus）;
ucharcodetab1[]={
"本系列中文模块内"
"任意位置反白显示"
"置二级字库，可在"
"使用更方便更灵活"
};
ucharcodetab31[]={
"金鹏科技有限公司"
"GoldenPalmTECH"
};
ucharcodetab32[]={
/*--调入了一幅图像：
F:
\梁\画图\HOCO12832.bmp--*/
/*--宽度x高度=128x32--*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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};
ucharcodetab5[]={
/*--调入了一幅图像：
F:
\梁\画图\COCK.bmp--*/
/*--宽度x高度=128x64--*/
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
/******************************************************************************************
*函数名称：
init_lcd
*功能描述：
初始化LCD
******************************************************************************************/
voidinit_lcd（void）
{
RST=1;
PSB=1;
wr_lcd（comm,0x30）;//00110000扩充功能设定——8位数据基本指令操作
wr_lcd（comm,0x01）;//00000001清屏——将DDRAM填满"20H",并且设定DDRAM的地址计数器为"00H"
wr_lcd（comm,0x06）;//00000110进入点设定——指定在数据的读取与写入时,设定游标的移动方向
wr_lcd（comm,0x0c）;//00001100游标或显示移位控制——开显示，关游标
}
/******************************************************************************************
*函数名称：
chn_disp
*功能描述：
显示汉字或字符
******************************************************************************
升级会员 