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[SOLVED] Error [LI006] - STM32L1xx - IAR - Linker error: Duplicate Definition

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valeriogiampa

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Hi,
I have modified an example project of IAR for STM32L1XX with a new library definition (one file .c and one file .h). In the file .h I have defined a variable that I use in the .c file. The function defined in the .h file are developed in the .c file and used in the main file.
There aren't any duplicate of the variable that I have defined in the .h file, but when I run the make command I can see this message:

Linking
Error[Li006]: duplicate definitions for "ADC_Counter"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Delay"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\
RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\RAM_Debug\
Obj\main.o"
Error[Li006]: duplicate definitions for "Frequency"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\
RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\RAM_Debug\
Obj\main.o"
Error[Li006]: duplicate definitions for "Frequency_Detection"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Gate_Pulse_Off"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Half_Period_Length"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "LED_Blinking"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Period"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\
RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\RAM_Debug\
Obj\main.o"
Error[Li006]: duplicate definitions for "Period_Counter"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Period_Length"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Period_Prev"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Power_Level"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Power_Level_Prev"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Second_Half_Wave"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Soft_Change_Delay"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Soft_Change_Speed"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Start_Up"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\
RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\RAM_Debug\
Obj\main.o"
Error[Li006]: duplicate definitions for "Timer"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\
RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\GettingStarted-VG1\RAM_Debug\
Obj\main.o"
Error[Li006]: duplicate definitions for "Trimmer_Value"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "Turn_On_Delay"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "ZVS_Alarm"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error[Li006]: duplicate definitions for "ZVS_Alarm_Counter"; in "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\appSource.o", and "C:\Users\hp\Desktop\STM32L1xx\Demos_STM32-P152_v1.00\Demos\Projects\
GettingStarted-VG1\RAM_Debug\Obj\main.o"
Error while running Linker

Total number of errors: 22
Total number of warnings: 0
Click to expand...

One error for variable defined in the .h file. Why?
Can you help me?

Best Regards

Valerio
 
Last edited by a moderator:

Have you forgotten the little "extern" in the h file?
 

The variable are defined in e .h file and use in the .c file. In the main file I don't use this variable. only i call the function that is developed without in-out parameters.
valeriogiampa said:
Hi,
I have modified an example project of IAR for STM32L1XX with a new library definition (one file .c and one file .h). In the file .h I have defined a variable that I use in the .c file. The function defined in the .h file are developed in the .c file and used in the main file.
There aren't any duplicate of the variable that I have defined in the .h file, but when I run the make command I can see this message:



One error for variable defined in the .h file. Why?
Can you help me?

Best Regards

Valerio
Click to expand...
 

The conventional way to write C-programs is to declare stuff in h-files and put definitions in c-files.
A silly example with two c-files and one h-file:

Code: 
/* example.h */
#ifndef __EXAMPLE_H
#define __EXAMPLE_H
extern int counter;
void displayCounter(void);
#endif

Code: 
/* example.c */
#include "example.h"

int counter;

int main(int argc, char **argv)
{

  for (;;) {
    counter++;

    displayCounter();
  }

} /* main */

Code: 
/* display.c */
#include "example.h"
#include <stdio.h>

void displayCounter(void)
{

  printf("%d ", counter);

} /* displayCounter */
It can be compiled like this: gcc -Wall -o example example.c display.c
The #ifndef stuff in the header file is to avoid declaring things more than one time.
 

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