1286432x.c

这是ＴＯＰＷＡＹ公司的ＬＣＤ驱动程序

/******************************************************************************
Copyright 2007 
All rights reserved.

文件名	：1286432x.c
模块名称：st7920 并行方式工作
功能概要：

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：
硬件连接：
12232液晶
---------------------------------------------------------------
|DB0-----P0.0 | DB4-----P0.4 | RW-------P2.2 | 
|DB1-----P0.1 | DB5-----P0.5 | RS-------P2.1 | 
|DB2-----P0.2 | DB6-----P0.6 | E------- P2.4 |
|DB3-----P0.3 | DB7-----P0.7 | RST-------P2.3|			
---------------------------------------------------------------
******************************************************************************/
#include<reg51.h>
#define uchar unsigned char
#define uint  unsigned int

sbit  RS = P2^1;
sbit  RW = P2^2;
sbit  E = P2^4;
sbit  PSB = P2^5;
sbit  RESET=P3^4;
sbit  KEY1=P1^5;
sbit  KEY=P1^6;
sbit  KEY2=P1^7;
bit  MODEKEY=0;
bit  SELECT=0;
int  SUBSELECT;
bit  KEYFLAG=0;

bit  SELECTKEY=0;
bit  MODE=0;
int  SUB;
bit  MOVE=1;
int  funnum=0;
bit  sleep=1;
uchar bdata SYSTEMSTATE=0X01;//MAIN SUBMAIN1 SUBMAIN2 HELP RUN ERROR NC NC 
uchar bdata STARTSTATE=0x01;
uchar bdata SELECTSTATE=0x01;
uchar bdata RUNSTATE;
uchar bdata STOPSTATE;
int ch1,ch2;
int charcode=0xbab0;
int chg;

int code tasktable[6]={2,100,4000,5000,8000,10000};
int  runtable[6]={2,100,4000,5000,8000,10000};
unsigned char code picture2[]=
{
/*------------------------------------------------------------------------------
  源文件 / 文字 : C:\My Documents\新建文件夹\CAR 副本.bmp
  宽×高（像素）: 128×64
  字模格式/大小 : 单色点阵液晶字模，横向取模，字节正序/1024字节
  数据转换日期  : 2002-04-09 15:01:25
------------------------------------------------------------------------------*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x0F,0xE3,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x33,0xFF,0xF8,0x00,0x3F,0xFE,0x00,0x60,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x73,0xFF,0xFF,0xE1,0xFF,0xFF,0xF8,0x70,0x00,0x00,0x00,
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0x00,0x07,0xE3,0xBF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0x00,0x00,0x00,
0x00,0x07,0xE0,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x03,0x80,0x00,0x00,
0x01,0x07,0xE0,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x60,0x00,0x00,
0x02,0x07,0xE0,0x3F,0xFF,0xC0,0x03,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x10,0x00,0x00,
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0x0D,0xF7,0xE0,0x33,0xC4,0x00,0x00,0x3F,0xFF,0xFF,0xFF,0xF0,0xFF,0xC4,0x00,0x00,
0x19,0x3F,0xE0,0x30,0xC4,0x00,0x00,0x0F,0xFF,0xFF,0xFF,0xE1,0xFF,0xF2,0x00,0x00,
0x12,0x0F,0xE0,0x20,0x6E,0x00,0x00,0x07,0xFF,0xFF,0xFF,0xC3,0xFF,0xF3,0x00,0x00,
0x32,0x0F,0xE0,0x20,0x3E,0x00,0x00,0x03,0xFF,0xFF,0xFF,0xC3,0xFF,0xF9,0x80,0x00,
0x32,0x0F,0xE0,0x20,0x3E,0x00,0x38,0x01,0xFF,0xFF,0xFF,0xC7,0xFF,0xF9,0x80,0x00,
0x32,0x0F,0xC0,0x20,0x3E,0x00,0xFF,0x00,0xFF,0xFF,0xFF,0x87,0xFF,0xFC,0x80,0x00,
0x72,0x1F,0xC0,0x60,0x3E,0x03,0xFF,0x80,0xFF,0xFF,0xFF,0x87,0xF0,0xFE,0xFC,0x00,
0x71,0x7F,0xC0,0x70,0x3C,0x0F,0xFF,0xC0,0x7F,0xFF,0xFF,0x87,0xC0,0x7F,0x7E,0x00,
0x71,0xFB,0xC0,0x70,0x3C,0x1F,0xFF,0xF0,0x3F,0xFF,0xFF,0x87,0xC0,0x3F,0x67,0x00,
0x78,0xC3,0xC0,0x7F,0xF8,0x3F,0x8F,0xFC,0x1F,0xFF,0xFF,0x8F,0x80,0x3F,0x43,0x00,
0x78,0x07,0xC0,0x7F,0xFC,0xFE,0x01,0xFE,0x1F,0xFF,0xFF,0x8F,0x80,0x1F,0xC3,0x00,
0x7C,0x1F,0xC0,0x7F,0xFF,0xFC,0x00,0xFF,0x0F,0xFF,0xFF,0xCF,0x0E,0x1F,0xE3,0x00,
0x7F,0xFF,0xC0,0x7F,0xFF,0xF0,0x00,0x7F,0x87,0xFF,0x00,0x0F,0x1F,0x1F,0xFC,0x00,
0x3F,0xFF,0xC0,0x7F,0xFF,0xF0,0x00,0x3F,0xC0,0x00,0x00,0x0F,0x1F,0x1F,0xE0,0x00,
0x5F,0xFF,0xFF,0xFF,0xFF,0xF0,0x3C,0x3F,0xE0,0x00,0x00,0x0F,0x1F,0x1E,0x00,0x00,
0x43,0xFF,0xFF,0xFF,0xFF,0xE0,0x7C,0x3F,0xFF,0xFF,0xFF,0xFF,0x1F,0x18,0x00,0x00,
0x40,0x00,0x00,0x00,0x01,0xE0,0xFE,0x3F,0xFF,0xFF,0xFF,0xFF,0x0E,0x18,0x00,0x00,
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0x7C,0x00,0x00,0x00,0x03,0xE0,0xFE,0x3F,0xFF,0x80,0x01,0xFF,0x00,0x3F,0xF0,0x00,
0x3F,0xFF,0x80,0x00,0x3F,0xE0,0xFE,0x3E,0x00,0x07,0xFF,0xFF,0x80,0x3F,0xE0,0x00,
0x1F,0xFF,0xFF,0xFF,0xFF,0xE1,0xFE,0x30,0x00,0xFF,0xFF,0xFF,0x80,0x7F,0xE0,0x00,
0x00,0xFF,0xFF,0xFF,0xFF,0xE1,0xFE,0x21,0xFF,0xFF,0xFF,0xFF,0x81,0xF0,0x00,0x00,
0x00,0x3F,0xFF,0xFF,0xFF,0xE0,0xFE,0x3F,0xFF,0xFF,0x00,0x03,0xC7,0xE0,0x00,0x00,
0x00,0x3F,0xFF,0xE0,0x03,0xF0,0xFE,0x3F,0xFF,0xF8,0x00,0x00,0xFF,0xC0,0x00,0x00,
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0x00,0x1F,0xFF,0x80,0x01,0xF0,0x7C,0x7F,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x0F,0xFF,0xFF,0xFF,0xF8,0x10,0x7E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x03,0xFF,0xFF,0xFF,0xF8,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x03,0xFF,0xFF,0xFF,0xFE,0x01,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0x87,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x20,0x0F,0xFF,0xFF,0xFF,0xE1,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x7F,0x81,0xF8,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x01,0xF8,0x07,0xC1,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x02,0x00,0x1C,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};


uchar code picture1[]={/*--  调入了一幅图像：E:\信息交流\tools\液晶显示图像\12864.bmp  --*/
/*--  宽度x高度=128x64  --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0xF0,0x00,0x00,0x00,0x00,0xE0,0x1F,0xE1,0xFF,0x00,0x00,0x00,0x00,0x0F,0x00,
0x00,0xC1,0xE0,0x00,0x00,0x00,0xE0,0x1F,0xE1,0xFF,0x00,0x00,0x00,0x07,0x83,0x00,
0x00,0xB0,0x18,0x00,0x00,0x00,0xE0,0x3C,0xF1,0xC7,0x80,0x00,0x00,0x18,0x0D,0x00,
0x00,0xE0,0x7C,0x00,0x00,0x00,0xE0,0x38,0x71,0xC3,0x80,0x00,0x00,0x3E,0x07,0x00,
0x00,0xFC,0x57,0xC0,0x00,0x00,0xE0,0x38,0x71,0xC3,0x80,0x00,0x03,0xEA,0x3F,0x00,
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0x01,0x4A,0xCC,0xC0,0x00,0x00,0xE0,0x38,0x01,0xC3,0x80,0x00,0x03,0x33,0x52,0x80,
0x0D,0x5B,0x5E,0xC0,0x00,0x00,0xE0,0x38,0x01,0xC3,0x80,0x00,0x03,0x7A,0xDA,0xB0,
0x0F,0xA2,0xFB,0xC0,0x00,0x00,0xE0,0x38,0x01,0xC3,0x80,0x00,0x03,0xDF,0x45,0xF0,
0x1F,0x9C,0xA2,0x40,0x00,0x00,0xE0,0x38,0x71,0xC3,0x80,0x00,0x02,0x45,0x39,0xF8,
0x19,0xE0,0x06,0x40,0x00,0x00,0xE0,0x38,0x71,0xC3,0x80,0x00,0x02,0x60,0x07,0x98,
0x0F,0xB0,0x0E,0x40,0x00,0x00,0xE0,0x3C,0x71,0xC7,0x80,0x00,0x02,0x70,0x0D,0xF0,
0x0D,0x0C,0x7E,0x40,0x03,0x80,0xFF,0x1F,0xF1,0xFF,0x01,0xC0,0x02,0x7E,0x30,0xB0,
0x03,0x03,0xAE,0xC0,0x17,0x80,0xFF,0x1F,0xE1,0xFF,0x01,0xE8,0x03,0x75,0xC0,0xC0,
0x00,0x81,0xFE,0x80,0x13,0xC0,0xFF,0x07,0xC1,0xFC,0x03,0xC8,0x01,0x7F,0x81,0x00,
0x00,0xC0,0xFF,0x80,0x15,0xE0,0x00,0x00,0x00,0x00,0x07,0xA8,0x01,0xFF,0x03,0x00,
0x00,0x60,0x7F,0x00,0x1F,0x20,0x00,0x00,0x00,0x00,0x04,0xF8,0x00,0xFE,0x06,0x00,
0x00,0x18,0x1E,0x00,0x0D,0x10,0x00,0x00,0x00,0x00,0x08,0xB0,0x00,0x78,0x18,0x00,
0x00,0x07,0xF2,0x00,0x09,0xD0,0x00,0x00,0x00,0x00,0x0B,0x90,0x00,0x4F,0xE0,0x00,
0x00,0x08,0x23,0xE0,0x73,0x30,0x00,0x60,0x00,0x00,0x0C,0xCE,0x07,0xC4,0x10,0x00,
0x00,0xFC,0x71,0xFC,0xE4,0xE0,0x00,0x31,0xF8,0x00,0x07,0x27,0x3F,0x8E,0x3F,0x00,
0x00,0xFE,0xFF,0xFF,0xFE,0x00,0x00,0x39,0x98,0x00,0x00,0x7F,0xFF,0xFF,0x7F,0x00,
0x01,0xFF,0xF8,0x3F,0xFE,0x00,0x00,0x31,0x98,0x00,0x00,0x7F,0xFC,0x1F,0xFF,0x80,
0x01,0xFF,0xFE,0x3F,0xFE,0x00,0x00,0x01,0x98,0x00,0x00,0x7F,0xFC,0x7F,0xFF,0x80,
0x01,0xFF,0xFF,0x9F,0xFC,0x00,0x00,0x01,0x98,0x00,0x00,0x3F,0xF9,0xFF,0xFF,0x80,
0x01,0xFF,0xFF,0xFF,0xFC,0x03,0xE0,0xF3,0x0F,0x07,0xC0,0x3F,0xFF,0xFF,0xFF,0x80,
0x01,0xFF,0xFE,0xFF,0xF8,0x07,0xE0,0x37,0xFC,0x07,0xE0,0x1F,0xFF,0x7F,0xFF,0x80,
0x02,0xFF,0x3F,0xFF,0xF8,0x0F,0xF0,0x31,0x8C,0x0F,0xF0,0x1F,0xFF,0xFC,0xFF,0x40,
0x02,0xFE,0x1F,0xEF,0xF8,0x0F,0x90,0x31,0x8C,0x09,0xF0,0x1F,0xF7,0xF8,0x7F,0x40,
0x02,0xA0,0x1F,0xFF,0xFC,0x0F,0xF0,0x30,0xD8,0x0F,0xF0,0x3F,0xFF,0xF8,0x05,0x40,
0x02,0x80,0x3F,0xFF,0xFE,0x0F,0xF0,0x30,0xD8,0x0F,0xF0,0x7F,0xFF,0xFC,0x01,0x40,
0x0E,0x80,0x7F,0xFC,0x7F,0x7F,0x10,0x3C,0x70,0x08,0xFE,0xFE,0x3F,0xFE,0x01,0x70,
0x0A,0xE0,0x7F,0xF8,0xFD,0x8F,0xF0,0x38,0xD8,0x0F,0xF1,0xBF,0x1F,0xFE,0x07,0x50,
0x0B,0x20,0x7F,0xFF,0x80,0x9F,0xF0,0x33,0x8F,0x0F,0xF9,0x01,0xFF,0xFE,0x04,0xD0,
0x08,0x10,0x1F,0xF0,0x03,0xBD,0xE0,0x0E,0x06,0x07,0xBD,0xC0,0x0F,0xF8,0x08,0x10,
0x0A,0x50,0x0F,0xF0,0xFF,0xBD,0xE0,0x00,0x00,0x07,0xBD,0xFF,0x0F,0xF0,0x0A,0x50,
0x0E,0xD0,0x0F,0xF7,0x10,0xFD,0xE0,0x00,0x00,0x07,0xBF,0x08,0xEF,0xF0,0x0B,0x70,
0x03,0xA0,0x0B,0xE8,0x0C,0xBF,0xE0,0x00,0x00,0x07,0xFD,0x30,0x17,0xD0,0x05,0xC0,
0x01,0xC0,0x09,0xE0,0x04,0xCF,0xE0,0x00,0x00,0x07,0xF3,0x20,0x07,0x90,0x03,0x80,
0x00,0x00,0x08,0xC0,0x7F,0xFF,0xE0,0x60,0x30,0x07,0xFF,0xFE,0x03,0x10,0x00,0x00,
0x1C,0x00,0x0C,0x07,0x81,0x17,0xE0,0x30,0x30,0x07,0xE8,0x81,0xE0,0x30,0x00,0x38,
0x1F,0x3F,0x1F,0xFC,0x00,0x07,0xC0,0x38,0x30,0x03,0xE0,0x00,0x3F,0xF8,0xFC,0xF8,
0x1F,0x81,0xB3,0xEC,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x37,0xCD,0x81,0xF8,
0x3E,0x21,0xE2,0x08,0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x10,0x47,0x84,0x7C,
0x3E,0x03,0x04,0x18,0x00,0x00,0x00,0xFB,0xFF,0x00,0x00,0x00,0x18,0x20,0xC0,0x7C,
0x2F,0x42,0x1C,0x10,0x00,0x00,0x00,0x18,0x30,0x00,0x00,0x00,0x08,0x38,0x42,0xF4,
0x2F,0xC3,0x78,0x30,0x00,0x00,0x00,0x18,0x30,0x00,0x00,0x00,0x0C,0x1E,0xC3,0xF4,
0x2F,0xC2,0xD8,0x60,0x00,0x00,0x00,0x18,0x30,0x00,0x00,0x00,0x06,0x1B,0x43,0xF4,
0x2F,0xC2,0x00,0xC0,0x00,0x00,0x00,0x18,0x30,0x00,0x00,0x00,0x03,0x00,0x43,0xF4,
0x2F,0xC2,0x00,0x80,0x00,0x00,0x00,0x18,0x30,0x00,0x00,0x00,0x01,0x00,0x43,0xF4,
0x2F,0xC3,0xC3,0x80,0x00,0x00,0x00,0x1B,0x30,0x00,0x00,0x00,0x01,0xC3,0xC3,0xF4,
0x0F,0xBF,0x3E,0x00,0x00,0x00,0x00,0x1E,0x30,0x00,0x00,0x00,0x00,0x7C,0xFD,0xF0,
0x1F,0xC0,0x00,0x00,0x00,0x00,0x00,0x1C,0x30,0x00,0x00,0x00,0x00,0x00,0x03,0xF8,
0x0F,0xE0,0x00,0x00,0x00,0x00,0x00,0x18,0x30,0x00,0x00,0x00,0x00,0x00,0x07,0xF0,
0x0F,0xA0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x05,0xF0,
0x0F,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xF0,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};

uchar code maintable[]={ 
0xbb,0xb6,0xd3,0xad,0xca,0xb9,0xd3,0xc3,
0XD0,0XC5,0XC0,0XFB,0xc4,0xa3,0xbf,0xe9,             
0x03,0x20,0x31,0x32,0x38,0x2a,0x36,0x34,
0x20,0x64,0x6f,0x74,0x73,0x20,0x20,0x20,
0x03,0x20,0x34,0x2a,0x38,0x63,0x68,0x63,
0x72,0x61,0x63,0x74,0x65,0x72,0x73,0x20,
0x03,0x20,0xbc,0xf2,0xcc,0xe5,0xd6,0xd0,
0xce,0xc4,0xd7,0xd6,0xbf,0xe2,0x20,0x20
};

uchar code explain1[]={  
0x20,0x20,0x4d,0x43, 0x43,0x31,0x32,0x38,
0x34,0x36,0x2d,0x33, 0x32,0x57,0xca,0xc7,
0XD0,0XC5,0XC0,0XFB, 0xb0,0xeb,0xb5,0xbc,
0xcc,0xe5,0xb9,0xab, 0xcb,0xbe,0xd7,0xee,
0xd0,0xc2,0xbf,0xaa, 0xb7,0xa2,0xb5,0xc4,
0xb1,0xea,0xd7,0xbc, 0xb2,0xfa,0xc6,0xb7,
0xa1,0xa3, 0xc4,0xda,0xbd,0xa8,0x38,0x31,
0x39,0x32, 0xb8,0xf6,0xd6,0xd0,0xce,0xc4,         
};
                     
uchar code explain2[]={  
0xd7,0xd6,0x2c,0x31,0x32,0x36,0xb8,0xf6,
0xb0,0xeb,0xbf,0xed,0xd7,0xd6,0xd0,0xcd,
0xb7,0xfb,0xba,0xc5,0xa1,0xa3,0xbe,0xdf,
0xd3,0xd0,0xce,0xc4,0xb1,0xbe,0xa1,0xa2,
0xcd,0xbc,0xd0,0xce,0xa1,0xa2,0xcd,0xbc,
0xce,0xc4,0xba,0xcd,0xcb,0xaf,0xc3,0xdf,
0xb9,0xa4,0xd7,0xf7,0xb7,0xbd,0xca,0xbd,  
0xa1,0xa3,0xb9,0xa6,0xba,0xc4,0xb5,0xcd                         
}; 
                         
uchar code explain3[]={  
0xa1,0xa2,0xd0,0xd4,0xbc,0xdb,0xb1,0xc8,
0xb8,0xdf,0xb5,0xc8,0xcc,0xd8,0xb5,0xe3,
0xa3,0xac,0xca,0xca,0xd3,0xc3,0xb8,0xf7,
0xd6,0xd6,0xb9,0xa4,0xd2,0xb5,0xbf,0xd8,
0xd6,0xc6,0xb3,0xa1,0xba,0xcf,0xa1,0xa3,
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,                
}; 
                       

uchar *dis_pic[]={picture1,picture2};    
/******************************************************************************************
* 函数名称    ：Delay
* 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    ：
******************************************************************************************/              
void delay(int t)
{
		int i,j;
 		for(i=0;i<t;i++)
 		{
  		for(j=0;j<10;j++);
    }
} 
/******************************************************************************************
* 函数名称    ：delay2
* 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    ：
******************************************************************************************/
void delay2(int t)
{
 		int i,j;
 		for(i=0;i<t;i++)
 		{
  		for(j=0;j<5;j++);
    }
 
}   
/******************************************************************************************
* 函数名称    ：wr_command
* 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    ：
******************************************************************************************/  
void wr_command(uchar t)
{
		delay(1);
 		RS = 0;
 		RW = 0;
 		P0 = t;
 		E = 0;
 		E = 1;
 		E = 0;
} 
/******************************************************************************************
* 函数名称    ：wr_data
* 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    ：
******************************************************************************************/ 
void wr_data(uchar t)
{
		delay(1); 
   	RS = 1;
 		RW = 0;
 		P0 = t;
 		E = 0;