用遥控器控制LCD显示按键数值

落日映苍穹つ 2022-07-12 07:13 242阅读 0赞

#include<reg52.h>
    #include<stdio.h>
    #include <intrins.h>
    #include"./uart/uart.h"
    #include"./delay/delay.h"
    #include"1602.h"
    
    sbit IR_IN = P3^2;
    
    sbit LED0 = P1^0;
    sbit LED1 = P1^1;
    sbit LED2 = P1^2;
    sbit LED3 = P1^3;
    sbit LED4 = P1^4;
    sbit LED5 = P1^5;
    sbit LED6 = P1^6;
    sbit LED7 = P1^7;
    
    unsigned int irtime;
    bit irok = 0;
    bit chang_ok = 0;
    
    bit startflag = 0;
    
    unsigned char irdata[33];
    unsigned char sbuf[5];
    unsigned char bitnum = 0;
    unsigned char str[35];
    unsigned char buf[4];
    unsigned char handle_ok = 0;
    
    
    void int0_init()
    {
        IT0 = 1; //设置外部中断的触发方式
    	EA = 1;
    	EX0 = 1;
    
    }
    
    void timer0_init()
    {
        EA = 1;
    	TMOD |= 0x02;
    	TH0 = 0;
    	ET0 = 1;
    	TR0 = 1;
    }
    
    void timer0_isr() interrupt 1
    {
       irtime++;//0.256ms  引导码 13.5/0.256 = 52 		1.12/0.256 = 4   0.56+1.685/0.256 = 8
    
    }
    
    /*void chang_num()
    {
    	unsigned char i;
    
    	str[0] = irdata[0] / 10 + '0';
    	str[1] = irdata[0] % 10 + '0';
    
    	for(i = 0; i < 32; i++)
    	{
    		str[i + 2] = irdata[i + 1] + '0';
    		
    		if(str[i + 2] <= (6 +'0'))
    		{
    			str[i + 2] = 0 + '0';
    		}
    		else
    		{
    			str[i + 2] = 1 + '0';
    		}
    	}
    	str[34] = '\0';
    	chang_ok = 1;
    } */
    
    void num_handle()
    {
    	 unsigned char i,j,k = 1;
    	 unsigned char temp = 0;
    	 if(irok == 1)
    	 {
    	 	for(i = 0; i < 4; i++)
    	 	{
    	 		for(j = 0; j < 8; j++)
    			{
    				temp >>= 1;
    
    			 	if(irdata[k] > 6)
    			 	{
    			 		temp += 0x80;
    			 	}	 
    			   
    			 	k++;
    			}
    
    			buf[i] = temp;
    	 	}
    		irok = 0;
    	}
    
    	if((buf[0] + buf[1] == 0xff) && (buf[2] + buf[3] == 0xff))
    	{
    		handle_ok = 1;	
    	}
    
    }
    
    void main()
    {
        timer0_init();
    	int0_init();
    	uart_init();
    	LCD_Init();
    	LCD_Clear(); 
        while(1)
    	{
    	    if(irok == 1)
    		{
    //			chang_num();
    			num_handle();
    
    			switch(buf[2])
    			{
    			/*	case 0x45: LED0 = ~ LED0;break;
    				case 0x46: LED1 = ~ LED1;break;
    				case 0x47: LED2 = ~ LED2;break;
    				case 0x44: LED3 = ~ LED3;break;
    				case 0x40: LED4 = ~ LED4;break;
    				case 0x43: LED5 = ~ LED5;break;
    				case 0x07: LED6 = ~ LED6;break;
    				case 0x15: LED7 = ~ LED7;break;
    			
    				default:break;*/
    				case 0x45:
    						sprintf(sbuf,"%c",1 + 0X30); 
    						LCD_Write_String(0,0,sbuf);
    						break;
    				case 0x46: 	
    						sprintf(sbuf,"%c",2 + 0X30); 
    						LCD_Write_String(0,0,sbuf);
    						break;
    				case 0x47: 	
    						sprintf(sbuf,"%c",3 + 0X30); 
    						LCD_Write_String(0,0,sbuf);
    						break;
    				case 0x44: 	
    						sprintf(sbuf,"%c",4 + 0X30); 
    						LCD_Write_String(0,0,sbuf);
    						break;
    				case 0x40: 	
    						sprintf(sbuf,"%c",5 + 0X30); 
    						LCD_Write_String(0,0,sbuf);
    						break;
    				case 0x43: 	
    						sprintf(sbuf,"%c",6 + 0X30); 
    						LCD_Write_String(0,0,sbuf);
    						break;
    				case 0x07: 
    						sprintf(sbuf,"%c",7 + 0X30); 
    						LCD_Write_String(0,0,sbuf);
    						break;
    				case 0x15: 	
    						sprintf(sbuf,"%c",8 + 0X30); 
    						LCD_Write_String(0,0,sbuf);
    						break;
    			
    				default:break;
    			}
    
    			if(handle_ok == 1)
    			{
    				str[0] = (buf[0] / 16) > 9 ? (buf[0] / 16) + 0x37 : (buf[0] / 16) + 0x30;
    				str[1] = (buf[0] % 16) > 9 ? (buf[0] % 16) + 0x37 : (buf[0] % 16) + 0x30;
    				str[2] = (buf[1] / 16) > 9 ? (buf[1] / 16) + 0x37 : (buf[1] / 16) + 0x30;
    				str[3] = (buf[1] % 16) > 9 ? (buf[1] % 16) + 0x37 : (buf[1] % 16) + 0x30;
    				str[4] = (buf[2] / 16) > 9 ? (buf[2] / 16) + 0x37 : (buf[2] / 16) + 0x30;
    				str[5] = (buf[2] % 16) > 9 ? (buf[2] % 16) + 0x37 : (buf[2] % 16) + 0x30;
    				str[6] = (buf[3] / 16) > 9 ? (buf[3] / 16) + 0x37 : (buf[3] / 16) + 0x30;
    				str[7] = (buf[3] % 16) > 9 ? (buf[3] % 16) + 0x37 : (buf[3] % 16) + 0x30;
    				str[8] = '\r';
    				str[9] = '\n';
    
    				handle_ok = 0;
    			}
    		   	uart_send_string(str);
    			irok = 0;
    		}
    /*		if(chang_ok == 1)
    		{
    			uart_send_string(str);
    		    uart_send_byte('\n');
    			chang_ok = 0;
    		}  */
    	}
    }
    
    void int0_isr() interrupt 0
    {
        if(startflag)
    	{
    		if((irtime > 40)&&(irtime < 60))
    		{
    		    bitnum = 0;
    		} 
    		irdata[bitnum] = irtime;
    		bitnum++;
    		irtime = 0;
    		if(bitnum == 33)
    		{
    		    irok = 1;
    		//	irdata[33] = '\0';
    			bitnum = 0;
    			startflag = 0;
    		}
    	}
    	else
    	{
    	    irtime = 0;
    		startflag = 1;
    	}
    }

#include<reg52.h>
    #include"./uart/uart.h"
    
    void uart_init()
    {
    	SCON = 0x50; //设置串口工作模式，打开接受允许
    	//SM0 = 0 ; SM1 = 1 ; REN = 0 ；
    	//TMOD &= 0x0f;
        TMOD |= 0x20; //设置定时器1为工作方式2
    	TH1 = 0xfd;  //波特率9600									 
    	//ET1 = 0;
    	TR1 = 1;
    	//EA = 1;
    	//ES = 1;
    }
    
    void uart_send_byte(unsigned char byte)
    {
    	SBUF = byte;
    	//TI位自动置1，手动清0
    	while(!TI);//  while(TI != 1);
    	TI = 0;
    }
    
    void uart_send_string(unsigned char *string)
    {
        while(*string)
    	{
    	    uart_send_byte(*string);
    		string++;
    	}	  
    }

#include "1602.h"
    #include "./delay/delay.h"
    
    #define CHECK_BUSY//是否使用判断忙语句条件，后面使用条件编译
    
    sbit RS = P2^4;   //定义端口 
    sbit RW = P2^5;
    sbit EN = P2^6;
    
    #define RS_CLR RS=0 
    #define RS_SET RS=1
    
    #define RW_CLR RW=0 
    #define RW_SET RW=1 
    
    #define EN_CLR EN=0
    #define EN_SET EN=1
    
    #define DataPort P0
    
    /*------------------------------------------------
                  判忙函数
    ------------------------------------------------*/
     bit LCD_Check_Busy(void) 
     { 
    #ifdef CHECK_BUSY
     DataPort= 0xFF; 
     RS_CLR; 
     RW_SET; 
     EN_CLR; 
     _nop_(); 
     EN_SET;
     return (bit)(DataPort & 0x80);
    #else
     return 0;
    #endif
     }
    /*------------------------------------------------
                  写入命令函数
    ------------------------------------------------*/
     void LCD_Write_Com(unsigned char com) 
     {  
     while(LCD_Check_Busy()); //忙则等待
     RS_CLR; 
     RW_CLR; 
     EN_SET; 
     DataPort= com; 
     _nop_(); 
     EN_CLR;
     }
    /*------------------------------------------------
                  写入数据函数
    ------------------------------------------------*/
     void LCD_Write_Data(unsigned char Data) 
     { 
     while(LCD_Check_Busy()); //忙则等待
     RS_SET; 
     RW_CLR; 
     EN_SET; 
     DataPort= Data; 
     _nop_();
     EN_CLR;
     }
    
    /*------------------------------------------------
                    清屏函数
    ------------------------------------------------*/
     void LCD_Clear(void) 
     { 
     LCD_Write_Com(0x01); 
     delay_ms(5);
     }
    /*------------------------------------------------
                  写入字符串函数
    ------------------------------------------------*/
     void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s) 
     {     
           
     while (*s) 
     	{     
     LCD_Write_Char(x,y,*s);     
     s ++;  x++;   
     	}
     }
    /*------------------------------------------------
                  写入字符函数
    ------------------------------------------------*/
    void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data) 
     {     
     if (y == 0) 
     	{     
     	LCD_Write_Com(0x80 + x);     
     	}    
     else 
     	{     
     	LCD_Write_Com(0xC0 + x);     
     	}        
     LCD_Write_Data( Data);  
     }
    /*------------------------------------------------
                  初始化函数
    ------------------------------------------------*/
     void LCD_Init(void) 
     {
       LCD_Write_Com(0x38);    /*显示模式设置*/ 
       delay_ms(5); 
       LCD_Write_Com(0x38); 
       delay_ms(5); 
       LCD_Write_Com(0x38); 
       delay_ms(5); 
       LCD_Write_Com(0x38);  
       LCD_Write_Com(0x08);    /*显示关闭*/ 
       LCD_Write_Com(0x01);    /*显示清屏*/ 
       LCD_Write_Com(0x06);    /*显示光标移动设置*/ 
       delay_ms(5); 
       LCD_Write_Com(0x0C);    /*显示开及光标设置*/
    }