// experi7e.c

#include <dos.h>
#include <stdio.h>
#include <bios.h>

// defines OC structure
#include "outcont.h" 

// include header with constants
#include "constant.h"

// include header with external prototypes
#include "extern.h"

enum
{
  MainMotor,
  LED1,
  LED2,
  LASTSLOT
};

void main(void)
{
  int x;
  double dc,oldfreq,newfreq;

  oldfreq = 1193180.0/65536.0;

  get_port(); // get the port number and establish register locations

  // make everthing an output
  set_up_ppi(Aout_CUout_Bout_CLout);

  set_up_new_timer(2000.0);

  SetLast(LASTSLOT);

  newfreq = get_frequency();

  printf("old frequency = %f new frequency = %f Hz\n"
  ,oldfreq,newfreq);

  Blink(LED1, PA3, .3, .2);
  Blink(LED2, PA4, .15, .1);
  SetLast(LASTSLOT);

  // set up an L289
  L289PwmDuty(MainMotor, 0, // arraynumer, start direction
              PA0, 30.0,    // pwm/enable port, fwrd duty
              50.0,         // reverse dutycycle
              PA2,          // direction1 port
              PA1);         // direction2 port
  printf("Settings from L289 setup:\n");
  show(MainMotor);

  while(!kbhit())
  {
    Forward(MainMotor);
    printf("Forward\n");
    if(kbhit())
      break;
    wait(1.25);

    Stop(MainMotor);
    printf("Stop\n");
    if(kbhit())
      break;
    wait(1);

    Reverse(MainMotor);
    printf("Reverse\n");
    if(kbhit())
      break;
    wait(.75);

    BrakeL298(MainMotor);
    printf("Brake\n");
    if(kbhit())
      break;
    wait(1);
  }

  Stop(MainMotor);

  // don't forget to free memory!
  FreeOutputControl();

  // be sure to restore the timer!
  restore_old_timer();
}

// end experi7e.c