/* main function for the universal protocol demo program */
/* <%Z%%M% %Q% sccs %I%> */
/****************************************************************************
comdemo.c:    Date Written: 11/3/95             Written by: John LaBatt
                   Project: COMDEMO.MAK
                   Purpose: 
                     This program will continually poll I/O from the 
                     simulator program using universal protocol messages.
                     It also allows the user to change values of the outputs
                     and will only write the change once.  
****************************************************************************/

#include <bios.h>   /* for call to _bios_keybrd() */
#include <io.h>     /* for call to close() */
#include "comdemo.h"
#include "udrive.h" /* Include the universal driver functions */
#include "comm_int.h"

char inchars[BSIZE],outchars[BSIZE]; /* IO buffers */
/* set up the com port */
comm_cb(com_port,1,0,0x00,0x00,0x00,inchars,outchars);     

/* This is the main function for the universal driver demo        */
/* The demo assumes you are using Com Port 2 with the simulator   */
/* program running on a PC connected directly to the comport.     */
/* It also only uses BIN commands for the messages that are sent. */

void main()
{
  UD_CONT ct;   /* Control structure for the universal driver */
  
  InitScreen(); /* Initialize the screen display */

  /* Open the com port */
  InitComm(2); /* 2 = com port #2 */

  init_udr_ct(&ct);

  quit = FALSE; /* ALT-X will terminate the program */
  editted = FALSE; /* Flag for whether data has been editted */

  
  while(!quit)
  {
    /* Simply loop forever reading the values, and Updating the screen */
    ReadVals(&ct);
    UpdateDiscreteWindow(DI_WINDOW,discrete_in);
    UpdateDiscreteWindow(DO_WINDOW,discrete_out);
    UpdateAnalogWindow(AI_WINDOW,analog_in);
    UpdateAnalogWindow(AO_WINDOW,analog_out);
    UpdateFloatWindow(FI_WINDOW,float_in);
    UpdateFloatWindow(FO_WINDOW,float_out);
    
    if(_bios_keybrd(_KEYBRD_READY))
      ProcessKey(&ct);  /* if a key was pressed, process it */
  }
  
  close_comm(&com_port); /* close the com port */
  RestoreScreen(); /* clear the screen and redisplay the cursor */
}