st7920 并行方式驱动12864液晶驱动.docx
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st7920并行方式驱动12864液晶驱动
/******************************************************************************
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：
生产厂家：
驱动芯片：
st7920
******************************************************************************/
#include
#defineuintunsignedint
#defineucharunsignedchar
#definex10x80
#definex20x88
#definey0x80
#definecomm0
#definedat1
sbitRS=P2^1;//H=data;L=command;
sbitRW=P2^2;//H=read;L=write;
sbitE=P2^4;//inputenable;
sbitPSB=P2^5;//H=并口;L=串口;
sbitRST=P2^3;//ResetSignal低电平有效
sbitbusy=P0^7;//lcdbusybit
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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0x00,0x00,0x00,0x01,0x3F,0xFC,0x1E,0x00,0x1F,0xFF,0xFF,0xFF,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xBF,0xFF,0xFC,0x00,0x7F,0xFC,0x00,0x7F,0xC0,0x00,0x00,0x00,
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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：
2006-12-19
*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：
******************************************************************************************/
voidinit_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：
2006-12-19
*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：
升级会员 