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#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define delayNOPX(){_nop_();_nop_();_nop_();_nop_();}
sbit BEEP =P1^0;
sbit LCD_RS =P2^0;
sbit LCD_RW =P2^1;
sbit LCD_EN =P2^2;
void DelayMS(uint ms);
bit LCD_Busy();
void LCD_Pos(uchar);
void LCD_Wcmd(uchar);
void lcd_Wdat(uchar);
//標題字符串
char code Title_Text[]={"-phone code-"}
//鍵盤序號與鍵盤符號映射表
uchar code Key_Table[]={'1','2','3','4','5','6','7','8','9','0','#'};
//鍵盤撥號數(shù)字緩沖
uchar Dial_Code_Str[]={""};uchar KeyNo=0Xff;int tCount =0;
//延時
void DelayMS(uint x)
{
uchar i;
while(x--)
for(i=0;i<120;i++);
}
//在LCD指定的行上顯示字符串
Void display_string(uchar*str,uchar klineNo)
{
uchar k;
LCD_pos(lineNo);
for (k=0;k<16;k++)
LCD_wdat(str[k]);
}
//1602LCD顯示控制函數(shù)bit
LCD_busy()void LCD_wcmd(uchar cmd)void
LCD_wdat(uchar str)void LCD_init()void
LCD_pos(uchar pos)
//T0控制按鍵聲音
Void T0_INT() interrupt 1
{
TH0 = -600/256;
TL0 = -600%256;
BEEP =~BEEP;
If (++tcount == 200)
{
Tcount 0;tr0 =0;
}
}
//鍵盤掃描
Uchar getkey()
{
Uchar i,j,k = 0;
Uchar keyscancode[]={0xef,0xdf,0xbf,0x7f};//鍵盤掃描碼
Uchar keyscancode[]={0xee,0xed,0xeb,0xde,0xdd,0xdb,0xbe,0xbd,0xbb,0x7e,0x7d,0x7b};//鍵盤特征碼
P3= 0x0f;
//掃描鍵盤獲取按鍵序號
If(p3!=0x0f)
{
For (i=0;i<4;i++)
{
p3 =keyscancode[i];
For (j=0;j<3;j++)
{
k =i*3+j;
If (p3==keycodetable[k])
return k;
}
}
}
else return oxff;
}
//主程序
Void main()
{
Uchar i =0,j;
p0 = p2 = p1 =0xff;
IE =0x82;TOMD =0x01;
LCD_init();//初始化LCD
Display_string(title_text,0x00);//在第一行顯示標題
While(1)
{
KeyNo =getkey();//獲取按鍵
If(keyNo ==0xff) cont inue;//無按鍵時繼續(xù)掃描
If(++i ==11)//超過11位時清空
{
for(j=0;j<16;j++) dial_code_str[j]=' ';i=0;
}
Dial_code_str[i]=key_table[keyNo];//講待顯示字符放入待顯示的撥號串中
Display_string(dial_code_str,0x40);//在第二行顯示號碼
Tr0 =1;//T0中斷控制按鍵聲音
While(getkey()!=0xff);//等待釋放
}
}

復制代碼

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