bdja.lst

PIC单片机串口通信的使用

     1: #include<pic.h>
     2: #define uchar unsigned char
     3: #define uint unsigned int
     4: __CONFIG(0x3B31);
     5: void init()
     6: {
     7:         TRISC=0XFF;
     8:         TRISB=0XFF;
     9:         TRISD=0X00;
    10:         PORTD=0X00;
    11:         TXSTA=0XA4;
    12:         RCSTA=0X90;
    13:         SPBRG=25;
    14:         GIE=1;
    15:         PEIE=1;
    16:         RCIE=1;
    17: }  
    18: void main()
    19: {
    20:         init(); 
    21:         while(1)
    22:         {
    23:                 TXREG=PORTB;
    24:                 while(!TRMT);
    25:         }
    26: 
    27: }
    28: void interrupt time()
    29: {
    30:         if(TRMT&RCIF)
    31:         {
    32:                 PORTD=RCREG;
    33:                 while(!TRMT);
    34:         }
    35: }