用這個吧，顯示漢字直接用PutStr(1,1,"速度");
#include <reg52.h>
#include <intrins.h>
sbit CS =P2^5;//RS
sbit SID=P2^6;//RW
sbit SCK=P2^7;//E
/**************************************************************
//串/并方式控制
/*******************************************************************
常量聲明區(qū)
********************************************************************/
unsigned char code AC_TABLE[]={ //坐標編碼
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,
0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,
0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
};
/****************************************************************
聲明：建議讀者先查閱我們提供的12864word文檔資料，理解12864定坐標的
方式。
發(fā)送一個字節(jié)
*****************************************************************/
void SendByte(unsigned char Dbyte)
{
unsigned char i;
for(i=0;i<8;i++)
{
SCK = 0;
Dbyte=Dbyte<<1;
SID = CY;
SCK = 1;
SCK = 0;
}
}
/**********************************************************
接收一個字節(jié)
***********************************************************/
unsigned char ReceiveByte(void)
{
unsigned char i,temp1,temp2;
temp1=temp2=0;
for(i=0;i<8;i++)
{
temp1=temp1<<1;
SCK = 0;
SCK = 1;
SCK = 0;
if(SID) temp1++;
}
for(i=0;i<8;i++)
{
temp2=temp2<<1;
SCK = 0;
SCK = 1;
SCK = 0;
if(SID) temp2++;
}
return ((0xf0&temp1)+(0x0f&temp2));
}
/****************************************************************
檢查忙狀態(tài)
******************************************************************/
void CheckBusy( void )
{
do SendByte(0xfc); //11111,RW(1),RS(0),0
while(0x80&ReceiveByte());
}
/******************************************************************
寫一個字節(jié)的指令
*******************************************************************/
void WriteCommand( unsigned char Cbyte )
{
CS = 1;
CheckBusy();
SendByte(0xf8); //11111,RW(0),RS(0),0
SendByte(0xf0&Cbyte);
SendByte(0xf0&Cbyte<<4);
CS = 0;
}
/*************************************************************
寫一個字節(jié)的數(shù)據(jù)
**************************************************************/
void WriteData( unsigned char Dbyte )
{
CS = 1;
CheckBusy();
SendByte(0xfa); //11111,RW(0),RS(1),0
SendByte(0xf0&Dbyte);
SendByte(0xf0&Dbyte<<4);
CS = 0;
}
/******************************************************************
lcd初始化函數(shù)
*******************************************************************/
void LcmInit( void )
{
WriteCommand(0x30);
WriteCommand(0x03);
WriteCommand(0x0c);
WriteCommand(0x01);
WriteCommand(0x06);
}
/*******************************************************************************************************
設定光標函數(shù)
********************************************************************************************************/
void Location_xy_12864(unsigned char x,unsigned char y)
{
switch(x)
{
case 0:
x=0x80;break;
case 1:
x=0x90;break;
case 2:
x=0x88;break;
case 3:
x=0x98;break;
default:
x=0x80;
}
y=y&0x07;
WriteCommand(0x30);
WriteCommand(y+x);
WriteCommand(y+x);
}
/***********************************************************************************
清除文本
************************************************************************************/
void LcmClearTXT( void )
{
unsigned char i;
WriteCommand(0x30);
WriteCommand(0x80);
for(i=0;i<64;i++)
WriteData(0x20);
Location_xy_12864(0,0);
}
/**************************************************************************************
清除圖片
*****************************************************************************************/
/*
void LcmClearBMP( void )
{
unsigned char i,j;
WriteCommand(0x34);
WriteCommand(0x36);
for(i=0;i<32;i++)
{
WriteCommand(0x80|i);
WriteCommand(0x80);
for(j=0;j<32;j++)
WriteData(0);
}
}
*/
//顯示溫度
/****************************************************************************************
顯示字符串
*****************************************************************************************/
void PutStr(unsigned char row,unsigned char col,unsigned char *puts)
{
WriteCommand(0x30);
WriteCommand(AC_TABLE[8*row+col]);
while(*puts != '\0')
{
if(col==8)
{
col=0;
row++;
}
if(row==4) row=0;
WriteCommand(AC_TABLE[8*row+col]);
WriteData(*puts);
puts++;
if(*puts != '\0')
{
WriteData(*puts);
puts++;
col++;
}
}
}
/*
//顯示一個四位的數(shù)字
void PutNum(unsigned char row,unsigned char col,unsigned int num)
{
WriteCommand(0x30);
WriteCommand(AC_TABLE[8*row+col]);
WriteData((num/1000)+48);
WriteData(((num%1000)/100)+48);
WriteData(((num%100)/10)+48);
WriteData((num%10)+48);
}*/ |
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