/* 
DEMO91.c: Using the CountDown Timer functions to toggle the LED at regular intervals of approximately 500 ms.

Compiler: BC++ 3.1,
          Turbo C++ 1.01 (3.01),
          MSVC 1.52

Compile mode: Large

Project: DEMO91.c
         ..\..\Lib\upac5000.lib

Hardware: uPAC-5000

Description
    TimerOpen(): Starts the timer.
    TimerClose(): Stops the timer.
                  If TimerOpen() is called within your program, it must call TimerClose() before exiting.
    CountDownTimerStart(): Starts the CountDown Timer.
    CountDownTimerReadValue(): Reads the current value of CountDown timer.

[Dec 21, 2011] by Liam
*/

#include <stdio.h>
#include "..\..\lib\upac5000.h"

void main(void)
{
    unsigned long value;
    int quit=0;
    
    InitLib(); /* InitLib() must be called before other functions in the library may be used */
    
    Print("\r\nPress 'q' to quit\r\n"); 
    
    TimerOpen();
    CountDownTimerStart(0, 500);
    
    while(!quit)
    {
        if(Kbhit())
        {
            switch(Getch())
            {
                case 'q':
                    quit=1;
                    break;
                
                default:
                    break;
            }
        }
        
        CountDownTimerReadValue(0, &value);
        if(value==0)
        {
            /* Toggle the LED at regular intervals of approximately 500 ms */
            CountDownTimerStart(0, 500);
            LedToggle();
        }
    }
    
    TimerClose();
}