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[PIC] error :undefined symbol

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beauty world

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Hi.Im learning PIC and I use PIC18f45k22 for voltmeter with LCD display project.but the program has erroe that I cant solve it

:: warning: (1273) Omniscient Code Generation not available in Free mode
:0: error: (499) undefined symbol:
_DelayFor18TCY(dist/default/production\lcd_voltmeter.X.production.obj)
make[2]: *** [dist/default/production/lcd_voltmeter.X.production.hex] Error 1
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2
(908) exit status = 1
nbproject/Makefile-default.mk:119: recipe for target 'dist/default/production/lcd_voltmeter.X.production.hex' failed
make[2]: Leaving directory 'D:/PIC MICRO/my prj/lcd voltmeter/lcd voltmeter.X'
nbproject/Makefile-default.mk:78: recipe for target '.build-conf' failed
make[1]: Leaving directory 'D:/PIC MICRO/my prj/lcd voltmeter/lcd voltmeter.X'
nbproject/Makefile-impl.mk:39: recipe for target '.build-impl' failed

BUILD FAILED (exit value 2, total time: 1s)
Click to expand...

what should I do?
 
Last edited by a moderator:

To provide solution we have to see your code. So, zip and post the complete MPLAB X project files. Have you installed proper toolset for using with MPLAB X. That is have you installed a Compiler to work with MPLAB X ?
 

You seem to be missing the function "_DelayFor18TCY()" or possibly it is there but it's function prototype is missing.

Brian.
 

It's a typing mistake!

The error message says it can't find "DelayFor18TCY()" but the function you have created is:
Code: 
//this function creat 18cycle delay for xlcd library
void Delay[B][COLOR=#FF0000]f[/COLOR][/B]or18TCY(void){
    Delay10TCYx(20);
}

Brian.
 

I make it but agan that error :(
ny code is this:
Code: 
#include<xc.h>
#include<delays.h>
#include<stdlib.h>
#include<xlcd.h>
#include<adc.h>


#define _XTAL_FREQ 8000000
#pragma config MCLRE=EXTMCLR,FOSC=HSHP,WDTEN=OFF

void Delay_second(unsigned char s){
    unsigned char i,j;
    for(j=0;j<s;j++){
        for(i=0;i<100;i++)__delay_ms(10);}

}

void DelayFOR18TCY(void){
    NOP();  NOP();  NOP();  NOP();
    NOP();  NOP();  NOP();  NOP();
    NOP();  NOP();  NOP();  NOP();
    NOP();  NOP();
    return;}

void DelayPORXLCD(void){           //15ms delay
    Delay1KTCYx(30);
}

void DelayXLCD(void){            //5ms delay

}

void LCD_Clear(){
    while(BusyXLCD());
    WriteCmdXLCD(0x01);

}
void LCD_Move(unsigned char row,unsigned char column){
    char ddaddr=40*(row-1)+column;
    while(BusyXLCD());
    SetDDRamAddr(ddaddr);

}

void main(){
    unsigned char vin,mv;
    char op[10];
    TRISB=0;              //PORT B CONFIGUR AS OUTPUT
    TRISAbits.RA0=1;      //PIN A0 configure as input
    ANSELB=0;             //PORT B config as digital
    ANSELA=1;



    Delay_second(1);
    OpenXLCD(FOUR_BIT&&LINE_5X7);


    OpenADC(ADC_FOSC_2 & ADC_RIGHT_JUST &ADC_20_TAD,
            ADC_CH0& ADC_INT_OFF ,
            ADC_TRIG_CTMU &ADC_REF_VDD_VDD &ADC_REF_VDD_VSS);

    while( BusyXLCD());        //wait if the lcd is busy
    WriteCmdXLCD(DON);        //desplay lcd on
     while( BusyXLCD());        //wait if the lcd is busy
      WriteCmdXLCD(0x06);
      putrsXLCD("VOLTMETER");
      Delay_second(2);
      LCD_Clear();

      for(;;){
          LCD_Clear();
          SelChanConvADC(ADC_CH0);
           while( BusyXLCD());
           vin=ReadADC();
          mv=(vin*5000)>>10;
          LCD_Move(1,1);
          putrsXLCD("mv=");
          mv=(vin*5000)>>10;
          itoa(op,mv,10);

          LCD_Move(1,6);
          putrsXLCD(op);
          Delay_second(1);
      }
}
 
Last edited by a moderator:

Read the error message carefully and consider that C language is case sensitive. Correct the definition of DelayFOR18TCY() respectively.
 
I chamge it but again the same error :(
the code that I use is this:
Code: 
[CODE]
#include<xc.h>
#include<delays.h>
#include<stdlib.h>
#include<xlcd.h>
#include<adc.h>


#define _XTAL_FREQ 8000000
#pragma config MCLRE=EXTMCLR,FOSC=HSHP,WDTEN=OFF

void Delay_second(unsigned char s){
    unsigned char i,j;
    for(j=0;j<s;j++){
        for(i=0;i<100;i++)__delay_ms(10);}

}

void DelayFOR18TCY(void){
    NOP();  NOP();  NOP();  NOP();
    NOP();  NOP();  NOP();  NOP();
    NOP();  NOP();  NOP();  NOP();
    NOP();  NOP();
    return;}

void DelayPORXLCD(void){           //15ms delay
    Delay1KTCYx(30);
}

void DelayXLCD(void){            //5ms delay
__delay_ms(5);
}

void LCD_Clear(){
    while(BusyXLCD());
    WriteCmdXLCD(0x01);

}
void LCD_Move(unsigned char row,unsigned char column){
    char ddaddr=40*(row-1)+column;
    while(BusyXLCD());
    SetDDRamAddr(ddaddr);

}

void main(){
    unsigned char vin,mv;
    char op[10];
    TRISB=0;              //PORT B CONFIGUR AS OUTPUT
    TRISAbits.RA0=1;      //PIN A0 configure as input
    ANSELB=0;             //PORT B config as digital
    ANSELA=1;



    Delay_second(1);
    OpenXLCD(FOUR_BIT&&LINE_5X7);


    OpenADC(ADC_FOSC_2 & ADC_RIGHT_JUST &ADC_20_TAD,
            ADC_CH0& ADC_INT_OFF ,
            ADC_TRIG_CTMU &ADC_REF_VDD_VDD &ADC_REF_VDD_VSS);

    while( BusyXLCD());        //wait if the lcd is busy
    WriteCmdXLCD(DON);        //desplay lcd on
     while( BusyXLCD());        //wait if the lcd is busy
      WriteCmdXLCD(0x06);
      putrsXLCD("VOLTMETER");
      Delay_second(2);
      LCD_Clear();

      for(;;){
          LCD_Clear();
          SelChanConvADC(ADC_CH0);
           while( BusyXLCD());
           vin=ReadADC();
          mv=(vin*5000)>>10;
          LCD_Move(1,1);
          putrsXLCD("mv=");
          mv=(vin*5000)>>10;
          itoa(op,mv,10);

          LCD_Move(1,6);
          putrsXLCD(op);
          Delay_second(1);
      }
}

[/CODE]
 

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