原创 MAX7219与LCD与通讯的一个综合应用[原创]

功能说明：

本功能板配合某门禁控制器使用

可识别ID卡并显示卡号。

1．                      按键1

  通讯测试状态，按下发送遥控开门命令。与计算机通讯约定数据长度为10。

2．                      按键2

  测试门禁遥控开门功能，按下发送遥控开门命令，若返回正确，显示DOOR IS OPEN 。

3．                      按键3

  LED演示功能，按键依次从1－8循环显示。

//-----------------------89c52    11.0592MHZ-------------
//51FLY 于2003年3月
＃i nclude <AT89X52.H>
＃i nclude <absacc.h>
＃i nclude <intrins.h>  

#define Uchar unsigned char
#define Uint  unsigned int
#define LCDCOM  XBYTE[0x1fff]       //写指令地址
#define LCDDATA XBYTE[0x3fff]      //写数据地址
#define LCDBUSY XBYTE[0x5fff]      //忙标志
sbit bflag=ACC^7;
Uchar idata s_HEXLCD[16]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44,0x45,0x46};//字符表
Uchar idata s_READY[9]={0x52,0x45,0x41,0x44,0x59,0x2e,0x2e,0x2e,0x00};  //READY
Uchar idata s_IDID[9]={0x49,0x44,0x43,0x2d,0x49,0x44,0x3a,0X20,0x00};   //ID_ID:
Uchar idata s_COMMN[9]={0x43,0x4f,0x4d,0x4d,0x4e,0x3a,0x20,0x20,0x00};  //COMMN:
Uchar idata s_SEND[9]={0x53,0x45,0x4e,0x44,0x2e,0x2e,0x2e,0x2e,0x00};   //SEND....
Uchar idata s_OPEN[9]={0x4f,0x50,0x45,0x4e,0x20,0x20,0x20,0x20,0x00};   //OPEN
Uchar idata s_DOOR[9]={0x44,0x4f,0x4f,0x52,0x21,0x20,0x20,0x20,0x00};   //DOOR!
Uchar idata s_DOORIS[9]={0x44,0x4f,0x4f,0x52,0x20,0x49,0x53,0x20,0x00}; //DOOR IS
Uchar idata s_ERROR[9]={0x45,0x52,0x52,0x4f,0x52,0x21,0x21,0x21,0x00};  //ERROR!!!

Uchar idata LENTH;               // 定义接收字符的长度
Uchar idata s_LCD[9];
//-------------------7219led---------------------------
sbit DIN=P1^4;
sbit CLK=P1^5;
sbit LOAD=P1^6;

Uchar idata s_LED[8]={0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08}; 
//----------------------------------------------------
Uchar idata idcard[4];
bdata Uchar haha;
sbit b0=haha^0;
Uchar times;
bit  flag_card;
Uchar k,i,j,temp;
//---------------------------------------------------
bit  flag_read;
bit  key1;
bit  key2;
Uchar idata buf[20];        
Uchar idata DATA[11]={0x5a,0xff,0xfe,0x10,0x27,0x00,0x01,0x03,0x00,0x34,0x6b};   //遥控开门命令
//----------------------------------------------------
void wait(void);
void init_lcd(void);
void d_char(Uchar a);
void display(Uchar posx,Uchar posy,Uchar idata  *s);
void Delay5ms(void);
void Delay400ms(void);
void service_int0(void);
void hex_lcd(Uchar idata *s_HEX,Uchar n);
//-----------------------------------------------------
void send_data(Uchar idata *d);
void receive(void);
void init_comm(Uint baudrate);
//------------------------------------------------------
void send_led(Uchar add,Uchar dat);
//------------------------------------------------------
void dlms(void);
Uchar kbscan(void);

//------------------主程序--------------------------------
//--------------------------------------------------－－－
void main(void)
{
    Uchar key;
    Delay400ms();
    init_lcd();                      //初始化LCD
     
    display(0,0,s_READY);            //在第一行0位置显示   //显示READY...
 Delay400ms();
    
    P3_5=0;                          //back light
 _nop_();
 P3_5=1;
///////////////////////////////////////////////////////
    init_comm(9600);
/////////////////////////////////////////////////////
    EX0=1;
    EA=1;
    P1=0x8c;                          //置P1口状态
    P2_0=0;                           //输入使能

   //主循环
   while(1)                        
   { 
        key=kbscan();
      if(key==1)
     {   
                LENTH=11;  
          key1=1;
       key2=0;
          hex_lcd(DATA,0x04);
          display(0,0,s_SEND);                          //显示SEND...
                display(0,1,s_LCD);                           //在第二行显示发送的数据

    send_data(DATA); 
    LENTH=10;
    
  }
         if(key==5)
     {      
                LENTH=11;
             key2=1;
    key1=0;
          display(0,0,s_OPEN);                          //显示OPEN
                display(0,1,s_DOOR);                          //显示DOOR!

    send_data(DATA); 
    LENTH=10;
  }
         if(key==2)
     {      
                send_led(0x0c,0x01);             //初始化7219LED
             send_led(0x0b,0x07);
             send_led(0x0a,0xf1);
             send_led(0x09,0xff);
             send_led(0x0f,0x00);

          send_led(0x01,s_LED[0]);                       
       send_led(0x02,s_LED[1]);
       send_led(0x03,s_LED[2]);
          send_led(0x04,s_LED[3]);
       send_led(0x05,s_LED[4]);
       send_led(0x06,s_LED[5]);
       send_led(0x07,s_LED[6]);
          send_led(0x08,s_LED[7]);

       temp=s_LED[0];                    //LED流水灯
       for(i=0;i<8;i++)
       s_LED=s_LED[i+1];
       s_LED[i-1]=temp; 
  }