compiling error

hello


i send here my program in such way so it


can not compiled but if i put the last two modul in vise versa ,i mean delay_time befor


timer0 interrupt it is compiled





please help





message error is error 45: undefined


symbole (pass-2)





thanks for all;





hamidi

//------------------------------------------------------------------------------
// Header files
//------------------------------------------------------------------------------

#include <AT89x051.H>//header file for 892051
#include <STDIO.H>		// Standard I/O header file
#include <stdlib.h>


//------------------------------------------------------------------------------
// Value Definitions
//------------------------------------------------------------------------------
#define 	TRUE			0x01			// Value representing TRUE
#define		FALSE			0x00			// Value representing FALSE
#define 	ON				0x01			// Value representing ON
#define		OFF				0x00			// Value representing OFF
#define 	HIGH			0x01			// Value representing ON
#define		LOW				0x00			// Value representing OFF

//#define  	DELAY_BLINK		1500			// Value for delay time - blink

//------------------------------------------------------------------------------
// I/O Port Defines
//------------------------------------------------------------------------------
#define  	SDATA			P3_2			// Serial data
#define  	SCLK			P3_3			// Serial clock
#define    LOCK_DETECT      P1_7
#define  	ALARM_LED		P1_6
#define  	BUS_FAULT_LED	P1_5
#define    LIVE_LED         P1
//------------------------------------
// Procedure:	initialize_system
// Inputs:		none
// Outputs:		none
//------------------------------------------------------------------------------
void initialize_system (void)
{
	TMOD=0x16;

			TH0=0;
			TL0=0;
			ET0=1;//TIMER 0 INTURRUPT ENABLE
			TR0=1;//START TIMER 0
			IT0=0;//EXTERNAL INTURRUPT 0 IS FALLING EDGE
			EX0=0;//ENABLE EXTERNAL INTURRUPT
			EA=1;
}

////////////////////////////////////////////////////////////////////////////////
// 	Routine:	delay_time
//	Inputs:		counter value to stop delaying
//	Outputs:	none
//	Purpose:	To pause execution for pre-determined time
////////////////////////////////////////////////////////////////////////////////



void timer0 (void) interrupt 1
		{
			static unsigned  char idata  var1=0;
			static unsigned  char idata  var2=0;
			if(++var1==255)
			{
				var1=0;
				if(++var2==13)
				{
				    var2=0;
				    read_from_8046();

				}
			 }
				TF0=0;
				EA=1;
			}



void delay_time (unsigned int time_end)
{
	unsigned int index;
	for (index = 0; index < time_end; index++);
}