//PCCOM.CPP PC - TMS320C31 COMMUNICATION TO MULTIPLY TWO NUMBERS
#include "dsklib.h"              //contains several header files
char DSK_APP[]="C31COM.OUT";
char DSK_EXE[]="PCCOM.EXE";

void config_dsk_for_comm()
{
  MSGS err; //enumerated message for looking up messages
  clrscr();
  Scan_Command_line(DSK_EXE);
  Detect_Windows();

  // Download the communications kernel
  for(;;)
  {
    if(Init_Communication(10000) == NO_ERR) break;
    if(kbhit()) exit(0);
  }
  HALT_CPU();                   //load applications code
  if((err=Load_File(DSK_APP,LOAD))!=NO_ERR)
  { printf("%s %s\n",DSK_APP,Error_Strg(err));
    exit(0);
  }
  RUN_CPU();  //DSK is initialized & able to communicate
  clrscr();
}

void main()
{
  char ch[10];
  unsigned long hostdata = 0;
  config_dsk_for_comm();
  do
  {
    clrscr();
    printf("Enter a number to transmit to C31 to be multiplied by 2\n");
    scanf ("%ld", &hostdata);
    putmem(0x809800L, 1, &hostdata);
    printf("The value written to the DSK is %ld. \n", hostdata);
    hostdata = 0;
    getmem(0x809801L, 1, &hostdata);
    printf("The value returned by the DSK is %ld. \n", hostdata);
    printf ("Press 'Y' to continue or 'Q' to Quit. \n");
    scanf("%s", &ch);
  } while (toupper(ch[0]) != 'Q');
}