基于51单片机的无线餐饮管理设计 NRF2401加LCD12864显示 -

/*****************************************
*****************************************/
#include"reg52.h"
#include"Allhead.h"
sbit LCD_RS=P3^5;
sbit LCD_RW=P3^6;
sbit LCD_EN=P3^4;
sbit LCD_PSB=P3^7;
sbit wela=P2^6;
sbit dula=P2^7;
sbit k1=P1^0;
sbit k2=P1^1;
sbit k3=P1^2;
sbit k4=P3^3;
sbit led2=P0^0;
unchar code dis1[]={"----请您点菜----"};
unchar code dis2[]={"鱼香肉丝 7 元"};
unchar code dis3[]={"宫保鸡丁 8 元"};
unchar code dis4[]={"回锅肉 10元"};
unchar code dis5[]={"京酱肉丝 8 元"};
unchar code dis6[]={"红烧肉 9 元"};
unchar code dis7[]={"------已点------"};
unchar code dis8[]={"------结账------"};
unchar code dis9[]={"共计"};
unchar code dis10[]={"元"};
unchar k=1,j=1,u=1,n=0,m=0;
char TxDate[4],sum=0;
void lcd_display3();
/*********************主函数***************************/
void delay_1ms(unint x)
{
unint i,j;
for(j=0;j<x;j++)
for(i=0;i<110;i++);
}
void write_cmd(unchar cmd)
{
LCD_RS=0;
LCD_RW=0;
LCD_EN=0;
P0=cmd;
delay_1ms(5);
LCD_EN=1;
delay_1ms(5);
LCD_EN=0;
}
void write_dat(unchar dat)
{
LCD_RS=1;
LCD_RW=0;
LCD_EN=0;
P0=dat;
delay_1ms(5);
LCD_EN=1;
delay_1ms(5);
LCD_EN=0;
}
void lcd_pos(unchar X,unchar Y)
{
unchar pos;
if(X==0)
{X=0X80;}
else if(X==1)
{X=0X90;}
else if(X==2)
{X=0X88;}
else if(X==3)
{X=0X98;}
pos=X+Y;
write_cmd(pos);
}
/************屏幕显示***************/
void lcd_display() //点菜界面
{
unchar i;
lcd_pos(0,0);
i=0;
while(dis1[i]!='\0')
{
write_dat(dis1[i]);
i++;
}
if(u==1) //第一页
{
lcd_pos(1,1);
i=0;
while(dis2[i]!='\0')
{
write_dat(dis2[i]);
i++;
}
lcd_pos(2,1);
i=0;
while(dis3[i]!='\0')
{
write_dat(dis3[i]);
i++;
}
lcd_pos(3,1);
i=0;
while(dis4[i]!='\0')
{
write_dat(dis4[i]);
i++;
}
}
else if(u==2) //第二页
{
lcd_pos(1,1);
i=0;
while(dis3[i]!='\0')
{
write_dat(dis3[i]);
i++;
}
lcd_pos(2,1);
i=0;
while(dis4[i]!='\0')
{
write_dat(dis4[i]);
i++;
}
lcd_pos(3,1);
i=0;
while(dis5[i]!='\0')
{
write_dat(dis5[i]);
i++;
}
}
else if(u==3) //第三页
{
lcd_pos(1,1);
i=0;
while(dis4[i]!='\0')
{
write_dat(dis4[i]);
i++;
}
lcd_pos(2,1);
i=0;
while(dis5[i]!='\0')
{
write_dat(dis5[i]);
i++;
}
lcd_pos(3,1);
i=0;
while(dis6[i]!='\0')
{
write_dat(dis6[i]);
i++;
}
}
}
void lcd_display2() //看菜界面
{
unchar i;
lcd_pos(0,0);
i=0;
while(dis7[i]!='\0')
{
write_dat(dis7[i]);
i++;
}
lcd_pos(1,0);
i=0;
switch(TxDate[0])
{
case 1 :
while(dis2[i]!='\0')
{
write_dat(dis2[i]);
i++;
}break;
case 2 :
while(dis3[i]!='\0')
{
write_dat(dis3[i]);
i++;
}break;
case 3 :
while(dis4[i]!='\0')
{
write_dat(dis4[i]);
i++;
}break;
case 4 :
while(dis5[i]!='\0')
{
write_dat(dis5[i]);
i++;
}break;
case 5 :
while(dis6[i]!='\0')
{
write_dat(dis6[i]);
i++;
}break;
default : break;
}
lcd_pos(2,0);
i=0;
switch(TxDate[1])
{
case 1 :
while(dis2[i]!='\0')
{
write_dat(dis2[i]);
i++;
}break;
case 2 :
while(dis3[i]!='\0')
{
write_dat(dis3[i]);
i++;
}break;
case 3 :
while(dis4[i]!='\0')
{
write_dat(dis4[i]);
i++;
}break;
case 4 :
while(dis5[i]!='\0')
{
write_dat(dis5[i]);
i++;
}break;
case 5 :
while(dis6[i]!='\0')
{
write_dat(dis6[i]);
i++;
}break;
default : break;
}
lcd_pos(3,0);
i=0;
switch(TxDate[2])
{
case 1 :
while(dis2[i]!='\0')
{
write_dat(dis2[i]);
i++;
}break;
case 2 :
while(dis3[i]!='\0')
{
write_dat(dis3[i]);
i++;
}break;
case 3 :
while(dis4[i]!='\0')
{
write_dat(dis4[i]);
i++;
}break;
case 4 :
while(dis5[i]!='\0')
{
write_dat(dis5[i]);
i++;
}break;
case 5 :
while(dis6[i]!='\0')
{
write_dat(dis6[i]);
i++;
}break;
default : break;
}
}
void lcd_display3() //算账
{
char a,b;
unchar i;
sum = 0;
lcd_pos(0,0);
i=0;
while(dis8[i]!='\0')
{
write_dat(dis8[i]);
i++;
}
switch(TxDate[0])
{
case 1 :
sum=sum+7;break;
case 2 :
sum=sum+8;break;
case 3 :
sum=sum+10;break;
case 4 :
sum=sum+8;break;
case 5 :
sum=sum+9;break;
default : break;
}
switch(TxDate[1])
{
case 1 :
sum=sum+7;break;
case 2 :
sum=sum+8;break;
case 3 :
sum=sum+10;break;
case 4 :
sum=sum+8;break;
case 5 :
sum=sum+9;break;
default : break;
}
switch(TxDate[2])
{
case 1 :
sum=sum+7;break;
case 2 :
sum=sum+8;break;
case 3 :
sum=sum+10;break;
case 4 :
sum=sum+8;break;
case 5 :
sum=sum+9;break;
default : break;
}
a=sum/10;
b=sum%10;
lcd_pos(1,0);
i=0;
while(dis9[i]!='\0')
{
write_dat(dis9[i]);
i++;
}
write_dat(a+0x30);
write_dat(b+0x30);
i=0;
while(dis10[i]!='\0')
{
write_dat(dis10[i]);
i++;
}
}
void lcd_init()
{
LCD_PSB=1;
write_cmd(0x30);
delay_1ms(5);
write_cmd(0x0C);
delay_1ms(5);
write_cmd(0x01);
delay_1ms(5);
}
/***************键盘扫描************/
void keyscan()
{
if(k1==0)//向下移动光标键
{
delay_1ms(1);
if(k1==0)
{
k++;
j++;
if(k>3)
{
k=3;
u++;
if(u==4)
{
u=1;
}
}
if(j==6)
{
k=1;
j=1;
}
while(!k1);
write_cmd(0x01);
delay_1ms(1);
}
}
if(k2==0)//向上移动光标键
{
delay_1ms(1);
if(k2==0)
{
k--;
j--;
if(k<1)
{
k=1;
u--;
if(u==0)
{
u=3;
}
}
if(j==0)
{
k=3;
j=5;
}
while(!k2);
write_cmd(0x01);
delay_1ms(1);
}
}
if(k3==0)//选菜
{
delay_1ms(10);
if(k3==0)
{
if(m==0)
{
TxDate[n]=j;
n++;
}
else
{
NRFSetTxMode(TxDate);//发送菜单
while(CheckACK()); //检测是否发送完毕
while(!k3);
delay_1ms(5);
}
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