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#include <reg51.h>
#define uchar unsigned char
#define uint unsigned int
#define _nop {} //空操作
#define PAGEADD 0xb8 //頁地址起始
#define TIERADD 0x40 //行地址起始
#define DIS_STARADD 0xc0 //開始命令
uchar row,column,c;
sbit CS2 = P3 ^ 3;
sbit CS1 = P3 ^ 4;
sbit E = P3 ^ 5; //定義使能端
sbit RW = P3 ^ 6;
sbit DI = P3 ^ 7;
sbit INT = P3 ^ 2; //外部中斷0引腳
sbit buzzer = P3 ^ 0;
sbit P3_1 = P3 ^ 1;
sbit LED = P3 ^ 1;
uchar flog = 0;
uchar flog1 = 0;
//鍵值數組
uchar cc[] = {0xee,0xde,0xbe,0x7e,0xed,0xdd,0xbd,0x7d,0xeb,0xdb,0xbb,0x7b,0xe7,0xd7,0xb7,0x77};
/****************************
漢字顯示
*****************************/
uchar code table2[] = { //加code在ROM
//-- 密 --
0x10,0x4C,0x24,0x04,0xF4,0x84,0x4D,0x56,0x24,0x24,0x14,0x84,0x24,0x54,0x0C,0x00,//16字節
0x00,0x01,0xFD,0x41,0x40,0x41,0x41,0x7F,0x41,0x41,0x41,0x41,0xFC,0x00,0x00,0x00,
//-- 碼 --
0x02,0x82,0xF2,0x4E,0x43,0xE2,0x42,0xFA,0x02,0x02,0x02,0xFF,0x02,0x80,0x00,0x00,
0x01,0x00,0x7F,0x20,0x20,0x7F,0x08,0x09,0x09,0x09,0x0D,0x49,0x81,0x7F,0x01,0x00,
//-- 正 --
0x00,0x02,0x02,0xC2,0x02,0x02,0x02,0xFE,0x82,0x82,0x82,0xC2,0x83,0x02,0x00,0x00,
0x40,0x40,0x40,0x7F,0x40,0x40,0x40,0x7F,0x40,0x40,0x40,0x40,0x40,0x60,0x40,0x00,
//-- 確 --
0x04,0x84,0xE4,0x9C,0x84,0xC6,0x24,0xF0,0x28,0x27,0xF4,0x2C,0x24,0xF0,0x20,0x00,
0x01,0x00,0x7F,0x20,0x20,0xBF,0x40,0x3F,0x09,0x09,0x7F,0x09,0x89,0xFF,0x00,0x00, //半個屏
//-- 歡 --
0x04, 0x34, 0xC4, 0x04, 0xC4, 0x3C, 0x20, 0x10, 0x0F, 0xE8, 0x08, 0x08, 0x28, 0x18, 0x00, 0x00,
0x10, 0x08, 0x06, 0x01, 0x82, 0x8C, 0x40, 0x30, 0x0C, 0x03, 0x0C, 0x10, 0x60, 0xC0, 0x40, 0x00,
//-- 迎 --
0x40, 0x42, 0x44, 0xC8, 0x00, 0xFC, 0x04, 0x02, 0x82, 0xFC, 0x04, 0x04, 0x04, 0xFE, 0x04, 0x00,
0x00, 0x40, 0x20, 0x1F, 0x20, 0x47, 0x42, 0x41, 0x40, 0x7F, 0x40, 0x42, 0x44, 0x63, 0x20, 0x00,
//-- 光 --
0x40, 0x40, 0x42, 0x44, 0x58, 0xC0, 0x40, 0x7F, 0x40, 0xC0, 0x50, 0x48, 0x46, 0x64, 0x40, 0x00,
0x00, 0x80, 0x40, 0x20, 0x18, 0x07, 0x00, 0x00, 0x00, 0x3F, 0x40, 0x40, 0x40, 0x40, 0x70, 0x00,
//-- 臨 --
0x00, 0xFC, 0x00, 0xFF, 0x40, 0x20, 0x10, 0x0C, 0x2B, 0x48, 0xC8, 0x08, 0x08, 0x8C, 0x08, 0x00,
0x00, 0x1F, 0x00, 0xFF, 0x00, 0xFF, 0x41, 0x41, 0x41, 0x7F, 0x41, 0x41, 0x41, 0xFF, 0x01, 0x00,
//-- 密 --
0x10, 0x4C, 0x24, 0x04, 0xF4, 0x84, 0x4D, 0x56, 0x24, 0x24, 0x14, 0x84, 0x24, 0x54, 0x0C, 0x00,
0x00, 0x01, 0xFD, 0x41, 0x40, 0x41, 0x41, 0x7F, 0x41, 0x41, 0x41, 0x41, 0xFC, 0x00, 0x00, 0x00,
//-- 碼 --
0x02, 0x82, 0xF2, 0x4E, 0x43, 0xE2, 0x42, 0xFA, 0x02, 0x02, 0x02, 0xFF, 0x02, 0x80, 0x00, 0x00,
0x01, 0x00, 0x7F, 0x20, 0x20, 0x7F, 0x08, 0x09, 0x09, 0x09, 0x0D, 0x49, 0x81, 0x7F, 0x01, 0x00,
//-- 錯 --
0x80, 0x40, 0x70, 0xCF, 0x48, 0x48, 0x48, 0x48, 0x7F, 0x48, 0x48, 0x7F, 0xC8, 0x68, 0x40, 0x00,
0x00, 0x02, 0x02, 0x7F, 0x22, 0x12, 0x00, 0xFF, 0x49, 0x49, 0x49, 0x49, 0xFF, 0x01, 0x00, 0x00,
//-- 誤 --
0x40, 0x42, 0xC4, 0x0C, 0x00, 0x40, 0x5E, 0x52, 0x52, 0xD2, 0x52, 0x52, 0x5F, 0x42, 0x00, 0x00,
0x00, 0x00, 0x7F, 0x20, 0x12, 0x82, 0x42, 0x22, 0x1A, 0x07, 0x1A, 0x22, 0x42, 0xC3, 0x42, 0x00,
};
//延遲函數
void Delay_nms(uchar n)
{
uchar a;
for (; n>0; n--)
for (a = 0; a<100; a++);
}
//檢查狀態
void LCD_Busy()
{
uchar busy;
E = 0; //RW=1,E信號下降沿鎖存DB7~DB0;RW=1,E=1,DDRAM數據讀到DB7~DB0
DI = 0; //DB7~DB0為指令數據
RW = 1;
while (1)
{
E = 1; //DDRAM數據讀到DB7~DB0
_nop;
_nop;
busy = P2;//讀狀態標志寄存器
_nop;
E = 0; // 下降沿鎖存DB7~DB0
if ((busy & 0x90) == 0)//檢測BF和RST（復位重啟）位，兩者都為零時表示可以進行寫入
break;
}
}
//左屏輸入指令
void WRCommand_L(uchar command)
{
CS1 = 1;
CS2 = 0;
LCD_Busy(); //檢查狀態
DI = 0; //DB7~DB0為指令數據
_nop;
RW = 0;
_nop;
E = 1;
_nop;
P2 = command;
_nop;
E = 0; //RW=0,E下降沿數據寫到DB7~DB0
_nop;
}
//右屏輸入指令
void WRCommand_R(uchar command)
{
CS1 = 0;
CS2 = 1;
LCD_Busy();
DI = 0;//指令
_nop;
RW = 0; //寫
_nop;
E = 1;
_nop;
P2 = command;
_nop;
E = 0;
_nop;
}
//左屏輸入數據（寫一個字節的顯示數據）
void WRdata_L(uchar ucdata)
{
CS1 = 1;
CS2 =0;
LCD_Busy();
DI = 1; //DB7~DB0為顯示數據
_nop;
RW = 0;
_nop;
E = 1;
_nop;
P2 = ucdata;
_nop;
E = 0;
_nop;
}
//右屏輸入數據
void WRdata_R(uchar ucdata)
{
CS1 =0;
CS2 = 1;
LCD_Busy();
DI =1;
_nop;
RW = 0;
_nop;
E = 1;
_nop;
P2 = ucdata;
_nop;
E = 0;
_nop;
}
//左屏顯示
//字符為16*16顯示，分為兩部分寫入32字節。前16個字節寫入第一頁（16*8）后16個字節寫入第二頁（16*8）
void C_display_L(uchar C_Pagenum, uchar C_Tiernum, uchar C_Temp) //C_Pagenum：頁，C_Tiernum：行char C_Temp：第幾個字符
{
uchar k;
C_Pagenum = PAGEADD | C_Pagenum; //首頁地址為 0xb8
C_Tiernum = TIERADD | C_Tiernum; //首行地址為 0x40
WRCommand_L(C_Pagenum); //左屏輸入
WRCommand_L(C_Tiernum);
for (k = 0; k<16; k++)
{
WRdata_L(table2[C_Temp * 32 + k]); //左屏輸入數據
};
C_Pagenum = C_Pagenum + 1; //下頁
WRCommand_L(C_Pagenum);
WRCommand_L(C_Tiernum);
for (k = 0; k<16; k++)
{
WRdata_L(table2[C_Temp * 32 + k + 16]);
}
}
//右屏顯示
void C_display_R(uchar C_Pagenum, uchar C_Tiernum, uchar C_Temp)
{
uchar k;
C_Pagenum = PAGEADD | C_Pagenum;
C_Tiernum = TIERADD | C_Tiernum;
WRCommand_R(C_Pagenum);
WRCommand_R(C_Tiernum);
for (k = 0; k<16; k++)
{
WRdata_R(table2[C_Temp * 32 + k]);
}
C_Pagenum = C_Pagenum + 1;
WRCommand_R(C_Pagenum);
WRCommand_R(C_Tiernum);
for (k = 0; k<16; k++)
{
WRdata_R(table2[C_Temp * 32 + k + 16]);
}
}
//清除所有顯示寄存器
void CLR_DisplayRAM()
{
uchar C_page, i, k;
for (i = 0; i<8; i++)
{
C_page = PAGEADD | i;//清除起始頁為0
WRCommand_L(C_page); //清除起始頁寫入
WRCommand_L(TIERADD); //清除起始行地址寫入
WRCommand_R(C_page);
WRCommand_R(TIERADD);
for (k = 0; k<64; k++)
{
WRdata_L(0x00);
WRdata_R(0x00); //lcm的ram自動加1，只允許循環64次
}
}
}
//LCD初始化
void Init_LCD(void)
{
CLR_DisplayRAM();// 清除所有顯示寄存器
WRCommand_L(DIS_STARADD);
WRCommand_R(DIS_STARADD);// 設置顯示起始列地址0xc0
WRCommand_L(0x3f);
WRCommand_R(0x3f);
}
//延遲函數
void delay()
{
uchar i;
uchar j;
for(i = 0;i < 100;i++)
{
for(j = 200;j>0;j--);
}
}
//鍵盤掃描
char keyscan()
{
uchar cord_h,cord_l;
uchar key=0;
P1=0xf0;
if(P1!=0xf0)
{
delay(); //消抖動
if(P1!=0xf0)
{
cord_l=P1;
P1=0x0f;
cord_h=P1;
key=cord_l|cord_h; //鍵值
}
}
P1=0xf0;
return key;
}
//密碼輸入成功
void Pass()
{
uchar a = 0, pagenum = 0,i =0;
LED = 1;
Init_LCD(); //lcd初始化
//中文顯示“密碼正確”
pagenum = 0;//從第一排開始顯示
for (a = 0; a<4; a++)
{
C_display_L(pagenum, a * 16, a);
}
//中文顯示“歡迎光臨”
pagenum = 2;//從第二排開始顯示
for (a = 0; a<4; a++)
{
C_display_R(pagenum, a * 16, a + 4);
}
while(1);
}
//按鍵中斷（int0）
void IntoPro() interrupt 0
{
uchar a = 0,pagenum = 0,i = 0,key;
flog1++; //記錄按鍵的次數
key=keyscan(); //掃描鍵盤是否按下
CLR_DisplayRAM(); //清屏
if(key == cc[0]) //判斷第一位密碼是否正確，正確flog++
{
flog=flog+1;} //P3_1 = 0;
if(key == cc[1])
{if(flog % 3 == 1)
flog=flog+1;} //P3_1 = 1;
if(key== cc[2])
{if(flog % 3 == 2)
flog=flog+1;} //P3_1 = 0;
if(key == cc[3])
{if(flog % 3 == 0)
{
P3_1 = 1;Pass(); //顯示密碼正確信 led燈亮
}
}
if(flog1 % 4 == 0) //密碼錯誤
{
buzzer = 1; //蜂鳴器響
delay();
buzzer = 0;
Init_LCD(); //lcd初始化
pagenum = 0;//從第一排開始顯示
//顯示按鍵錯誤
for (a = 0; a<4; a++)
{
C_display_L(pagenum, a * 16, a + 8);
}
}
}
void main()
{
LED = 0;
buzzer = 0;//蜂鳴器關閉
P1 = 0xf0;
EA = 1; //中斷總允許
EX0 = 1; //外部中斷0
IT0 = 1; //下降沿觸發
while(1);
}

復制代碼

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