/* 
DEMO91.c: Shows how to use CountDownTimer function on channel 0 to switch the LED ON or OFF

Compiler: BC++ 3.1, 
          Turbo C ++ 1.01(3.01) (free from http://community.borland.com/museum)
          MSC 6.0,
          MSVC 1.52.

Compile mode: Large

Project: DEMO91.c
         ..\..\Lib\7188el.Lib

Hardware: 7188E

Note: Function used:
      TimerOpen --> begin to use I-7188 timer
      TimerClose --> stop to use timer
      CountDownTimerStart  --> start to countdown a time interval
      CountDownTimerReadValue -->to decide if time is up.
      Use CountDownTimer to count 500ms(0.5s) to turn LED ON or OFF.

[04/Dec/2006] by Liam
[July,13,2011] by Nicholas
*/

#include <stdio.h>
#include "..\..\lib\7188e.h"    /* you must change this lib to suit the hardware that you want to use. */

void main(void)
{
	int LedMode=0;
	unsigned long value;
	int quit=0;
	
	Print("\n\rTest CountDownTimer...");
	Print("\n\rNow LED must flash once every second");
	Print("\n\rPress 'q' to quit\n\r");
	TimerOpen();
	LedOff();
	CountDownTimerStart(0, 500);
	while(!quit)
	{
		if(Kbhit())
		{
			switch(Getch())
			{
				case 'q':
				    quit=1;
				break;
			}
		}
		CountDownTimerReadValue(0, &value);
		if(value==0)
		{
			CountDownTimerStart(0, 500);
			if(LedMode)
			{
				LedMode=0;
				LedOff();
			}
			else
			{
				LedMode=1;
				LedOn();
			}
		} 
	}
	TimerClose();
	LedOn();
}