   -  I2C. ,  UART          . 
  PIC16F877A .   .  SDACOM4.exe     
 TURBOC.3_0 (Borland),   PIC    MPLAB v.5.70.,  PIC16F877A    PONY-PROG.

 :

   >sdacom4 code.bin -(w  r  e  v)

  w -    code.bin  flash sda555xFL(  );
     r-  c flash  (  );
     e - c;
     v-    flash  ;

  SDACOM.INI :[PORT]-       - COM1  COM2(  ),
 [DeLAY]    -  : 1  2, . . 1 -  (,   COM-USB), 2 -  (COM  ),
          .

  :
 1.    :/  sdacom4.exe,      DOS;
 2.   . , . ENTER,   ;
 3.    ( 1 . -    ,       RS232)    ,
     ,  D3    .  ;
 4.   W ,   LED D1    , .  .  .
 5.   r ,    D2.
 6.   e ,  D1  D2      10 .
 7.  V ,   D2, ..  .
     ....
   % -  .    -   8- ,  -  6-.( Windows XP.)

 