- #include"reg51.h"//头文件
- #include<intrins.h>
- #define DD P2
- sbit CS=P1^0; //定义端口
- sbit CLK=P1^1;
- sbit DO=P1^2;
- sbit DI=P1^3;
- sbit KEY=P1^7;
- sbit buzzer=P0^0;
- sbit Rs=P1^4;//LCD定义端口
- sbit Rw=P1^5;
- sbit E=P1^6;
- sbit busy_p=ACC^7;
- unsigned char CH=0x02,key_count=1;
- unsigned char HC[6]={0};
- unsigned char BZ=0;
- void delay_1ms(unsigned char i) //延时函数1ms
- {
- unsigned char j;
- while(i--)
- for(j=0;j<125; j++);
- }
- void delay_10ns(unsigned char i)//延时函数10ns
- {
- unsigned char j;
- while(i--)
- for(j=0;j<10; j++);
- }
- void xiezhiling(unsigned char com,bit p)//写命令函数
- {
- if(p)
- delay_10ns(5);
- E=0;
- Rs=0;
- Rw=0;
- DD=com;
- delay_10ns(50);
- E=1;
- delay_1ms(2);
- E=0;
- delay_10ns(4);
- }
- void xieshuju(unsigned char DATA)//写数据函数
- {
- delay_10ns(50);
- E=0;
- Rs=1;
- Rw=0;
- DD=DATA;
- delay_10ns(50);
- E=1;
- delay_10ns(50);
- E=0;
- delay_10ns(4);
- }
- void init(void)//初始化函数
- {
- delay_1ms(15);
- xiezhiling(0x38,0);
- delay_1ms(5);
- xiezhiling(0x38,0);
- delay_1ms(5);
- xiezhiling(0x38,0);
- delay_1ms(5);
- xiezhiling(0x38,1); //功能设定（8位，2行，5*7点矩阵)
- xiezhiling(0x08,1);
- xiezhiling(0x01,1); //清除屏幕
- xiezhiling(0x06,1); //加1
- xiezhiling(0x0c,1);//显示器ON，光标OFF，闪烁OFF
- }
- unsigned char ADconv(void)//AD转换子程序
- {
- unsigned char i;
- unsigned int data_f=0,data_c=0;
- DI=1;
- CS=1;
- _nop_();
- CS=0;
- DI=1; ;
- CLK=1;
- _nop_();
- _nop_();
- CLK=0;
- _nop_();
- _nop_();
- CLK=1;
- DI=(bit)(0x02&CH);
- _nop_();
- CLK=0;
- _nop_();
- _nop_();
- CLK=1;
- DI=(bit)(0x01&CH);
- _nop_();
- _nop_();
- CLK=0;
- DI=1;
- CLK=1;
- _nop_();
- _nop_();
- CLK=0;
- _nop_();
- CLK=1;
-
- for(i=8;i>0;i--)
- {
- data_f|=DO;
- data_f<<=1;
- CLK=1;
- _nop_();
- _nop_();
- CLK=0;
- _nop_();
- }
- for(i=8;i>0;i--)
- {
- data_c<<=1;
- data_c|=DO;
- _nop_();
- CLK=1;
- _nop_();
- _nop_();
- CLK=0;
- _nop_();
- }
- CLK=0;
- _nop_();
- _nop_();
- CLK=1;
- _nop_();
- _nop_();
- CLK=0;
- _nop_();
- _nop_();
- CLK=1;
- _nop_();
- CS=1;
- _nop_();
- _nop_();
- return data_f;
- }
- void xs_int(unsigned int shuju)//将一个数据各个位分开并存放在H C[]数组中
- {
- if(shuju < 10)
- BZ = 1;
- else if(shuju < 100) BZ = 2;
- else if(shuju < 1000) BZ = 3;
- else if(shuju < 10000) BZ = 4;
- else if(shuju < 65535) BZ = 5;
- switch(BZ)
- {
- case 5:HC[5] = shuju/10000; //百位
- case 4:HC[3] = shuju%10000/1000;//十位
- case 3:HC[2] = shuju%1000/100;//个位
- case 2:HC[1] = shuju%100/10;//小数点后一位
- case 1:HC[0] = shuju%10;
- break;
- default:break;
- }
- }
- void main(void)//主函数
- {
- unsigned int data_temp=0;
- init();
- TMOD=0x01;
- TH0=(65536-50000)/256;
- TL0=(65536-50000)%256;
- ET0=1;
- TR0=1;
- while(1)
- {
- data_temp=ADconv();
- if(data_temp>128)//报警数值
- {
- EA=1;
- }
- else
- {
- EA=0;
- buzzer=0;
- }
- P3=~data_temp;
- xs_int(196*data_temp);
- if(KEY==0)
- {
- delay_1ms(10);
- if(KEY==0)
- while(!KEY);
- key_count++;
- if(key_count==3)
- key_count=1;
- xiezhiling(0x01,0);
-
- }
- if(key_count==1)
- {
- xiezhiling(0x80,1);//LCD第一行
- xieshuju('P');
- xieshuju('R');
- xieshuju('E');
- xieshuju('S');
- xieshuju('S');
- xieshuju('U');
- xieshuju('R');
- xieshuju('E');
- xieshuju('-');
- xieshuju(HC[5]+0x30);
- xieshuju(HC[3]+0x30);
- xieshuju(HC[2]+0x30);
- xieshuju('.');
- xieshuju(HC[1]+0x30);
- xieshuju('P');
- xieshuju('a');
-
- xiezhiling(0x80+0x40,1);//LCD第二行
- xieshuju('A');
- xieshuju('l');
- xieshuju('a');
- xieshuju('r');
- xieshuju('m');
- xieshuju(' ');
- xieshuju('S');
- xieshuju('t');
- xieshuju('a');
- xieshuju('t');
- xieshuju('u');
- xieshuju('s');
- xieshuju('-');
- xieshuju('-');
- xieshuju('O');
- xieshuju('N');
-
- }
- if(key_count==2)
- {
- xiezhiling(0x80,1);//LCD第一行
- xieshuju('P');
- xieshuju('r');
- xieshuju('e');
- xieshuju('s');
- xieshuju('s');
- xieshuju('u');
- xieshuju('r');
- xieshuju('e');
- xieshuju(' ');
- xieshuju('i');
- xieshuju('s');
- xieshuju(' ');
- xieshuju('O');
- xieshuju('K');
- xieshuju(' ');
- xieshuju(' ');
-
-
- xiezhiling(0x80+0x40,1);//LCD第二行
- xieshuju('m');
- xieshuju('a');
- xieshuju('d');
- xieshuju('e');
- xieshuju(' ');
- xieshuju('B');
- xieshuju('Y');
- xieshuju(' ');
- xieshuju('f');
- xieshuju('u');
- xieshuju('b');
- xieshuju('a');
- xieshuju('o');
- xieshuju('j');
- xieshuju('i');
- xieshuju('e');
- xieshuju(' ');
-
- }
-
- }
- }
- void timer0() interrupt 1 // 中断方式1
- {
- TH0=(65536-50000)/256;
- TL0=(65536-50000)%256;
- buzzer=!buzzer;
-
- }
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