DELAY

This library provides the functions to generate the required delays. Basically it does the looping for the specified count to generate the delay. If the compiler provides the inbuilt delay libraries(like AVR), then this library uses internally those functions.


DELAY_us

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Defination
Input Arguments
Return Value
Description
Usage



DELAY_ms

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Defination
Input Arguments
Return Value
Description
Usage



DELAY_sec

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Defination void DELAY_sec(uint16_t sec_count)
Input Arguments uint16_t.
Return Value none
Description This function is used generate delay in sec .It generates a delay of 1sec for each count,if 10 is passed as the argument then it generates delay of 10sec.
Usage

user guide

/* Program to blink the LEDs using delay routines*/

#include<reg52.h>
#include "delay.h"   //User defined library which contains the delay routines
 
 
 
int  main()
{
 
 
	while(1)
	{
		PO = 0xff;      /* Turn ON the LEDs */
		DELAY_us(10);   /* Generate the delay of 1sec+10ms+10us */
		DELAY_ms(10);
		DELAY_sec(1);
 
		P0 = 0x00;     /* Turn OFF the LEDs */
		DELAY_us(10);  /* Generate the delay of 1sec+10ms+10us */
		DELAY_ms(10);
		DELAY_sec(1);
 
	}
 
	return 0;
}