Error l6200e keil - Исправление ошибок и поиск оптимальных решений проблем

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Hi guys,

I’m receiving the Error: ‘L6200E: Symbol multiply defined’.

I understand one workaround is to include externs, however this is
unideal. With most compilers/linkers something such as:

#ifndef bla
#define bla

// Content

#endif

Would prevent double inclusion, however it doesn’t appear to work
with Keil.

Any ideas on a similar solution?

Many thanks

«With most compilers»? You seen any C compiler that does not
support the use of inclusion guards in header files?

You have given too little information, but you definitely seem to
do something wrong.
«I understand one workaround is to include externs»

Pardon?

extern is not a «workaround»! It is the correct way to give
one file access to symbols from another — ie, to symbols which are
external to it!

«however this is unideal»

How so?

«With most compilers/linkers something such as … Would
prevent double inclusion»

So-called «include guards» like this have nothing to do with
Linkers.

«it doesn’t appear to work with Keil»

It does work with Keil! But, of course, if your
problem is not multiple-inclusion, then it won’t solve it!

Include Guards prevent multiple inclusion of the header in the
same translation unit — but do nothing to prevent multiple
definitions due to including the same header in multiple translation
units!

The solutions is to not have definitions in
your headers.

See: c-faq.com/…/decldef.html

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Содержание

Error l6200e symbol multiply defined by
Project Migration for projects using ‘STM32CubeMX’ component without bundles ‘STM32CubeMX’
Keil RTX5: Application sporadically stops working
Error l6200e symbol multiply defined by
Project Migration for projects using ‘STM32CubeMX’ component without bundles ‘STM32CubeMX’
Keil RTX5: Application sporadically stops working
Error: L6200E: Symbol SEGGER_RTT
Top Replies
Symbol multiply defined
Top Replies
[SOLVED] Error when added segger RTT to a Keil project
satheesh
[SOLVED] Error when added segger RTT to a Keil project
SEGGER — Nino
Source Code
Source Code

Error l6200e symbol multiply defined by

The section Troubleshooting gives you hints for fixing issues that could occur when using STM32CubeMX.

Project Migration for projects using ‘STM32CubeMX’ component without bundles ‘STM32CubeMX’

The introduction of the component bundles ‘STM32CubeMX’ and ‘Standalone’ introduces incompatible component identifier. The following steps will allow to migrate the selected components to their new component IDs.

Open the file FrameworkCubeMX.gpdsc in an editor. It is located in the folder:

add the attribute Cbundle=»STM32CubeMX» to the component line

Save and close the file.
Open the project in uVision.
Open the dialog ‘Manger Run-Time Environment’, expand component class ‘Device’ and component group ‘STM32Cube Framework’ and press the play button to open STM32CubeMX.
In STM32CubeMX, press the menu button to generate the source code.
Return to uVision and let it re-read the updated files.
The project migration is now completed.

Keil RTX5: Application sporadically stops working

Symptom: An application using Keil RTX5 shows sporadic problems and sometimes stops working.

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Error l6200e symbol multiply defined by

The section Troubleshooting gives you hints for fixing issues that could occur when using STM32CubeMX.

Project Migration for projects using ‘STM32CubeMX’ component without bundles ‘STM32CubeMX’

Open the file FrameworkCubeMX.gpdsc in an editor. It is located in the folder:

add the attribute Cbundle=»STM32CubeMX» to the component line

Save and close the file.
Open the project in uVision.
Open the dialog ‘Manger Run-Time Environment’, expand component class ‘Device’ and component group ‘STM32Cube Framework’ and press the play button to open STM32CubeMX.
In STM32CubeMX, press the menu button to generate the source code.
Return to uVision and let it re-read the updated files.
The project migration is now completed.

Keil RTX5: Application sporadically stops working

Symptom: An application using Keil RTX5 shows sporadic problems and sometimes stops working.

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Error: L6200E: Symbol SEGGER_RTT

I am trying to attempt the RTT tutorial and I am not able to complete the first task.

I have included the SEGGER_RTT.h deader file, copied RTT and Syscalls folders to the right place and also added the .c file to the RTT in the project.

When I try to BUILD the project I get this error. What is it?

Please help, Thanks

This thread has some comments that may be useful. Likely you have #included the same file multiple places.

Thanks for the quick reply Øyvind. I tried to add the methods discussed in the post but still can not resolve the issue.

added another .c file to the RTT group i.e. SEGGER_rtt_printf.c
added another include lib i.e. #include «SEGGER_RTT_Conf.h»
I have replaced the files at C:UsersArsalanDesktopEngineeringDevicesnRF51822SDKsdk11externalsegger_rtt with the files I downloaded from the zip file mentioned in the tutorial.

My build result is as follows.

Please help Thanks

Well, you’re getting more errors, try removing some of the includes. You are having issues with multiple definitions.

Its not about the includes. Even when I comment off all the includes and the RTT main command, the error stays.

It is something to do with SEGGER_RTT.c and SEGGER_RTT_printf.c files we added to the RTT Group.

SDK 11 has innate support for RTT without needing to include additional files, I think this is why you are seeing this error. Please see this section in the infocenter.

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Symbol multiply defined

I tried to build my project in the Keil µVision IDE. But everytime I get the same error and I can’t figure out where the problem should be. I searched for the multiply defined symbols but I can’t find them.

Would be glad if you guys can help me to solve my problem.

I uploaded my project to github. LINK

Using SDK 14.0.0.0 and Keil µVision.

In Adafruit_GFX.h the following file scope variables are defined

int16_t WIDTH, HEIGHT; // this is the ‘raw’ display w/h — never changes int16_t _width, _height; // dependent on rotation int16_t cursor_x, cursor_y; uint16_t textcolor, textbgcolor; uint8_t textsize; uint8_t rotation;

Two c modules, main.c and Adafruit_GFX.c, include the Adafruit_GFX.h in their include list and thus these file scope variables are defined twice, and that upsets the C compiler 🙁

Try to move the definition for these variables into Adafruit_GFX.c (and make them «static» too) and see if you can compile successfully.

Thank you very much, I have done what you say (included for the other multiply defined symbols) And it worked!

I am still getting these 3 errors others are resolved:

._buildnrf52832_xxaa.axf: Error: L6200E: Symbol _drawPixel multiply defined (by adafruit_gfx.o and main.o). ._buildnrf52832_xxaa.axf: Error: L6200E: Symbol _i2caddr multiply defined (by ssd1306.o and main.o). ._buildnrf52832_xxaa.axf: Error: L6200E: Symbol _vccstate multiply defined (by ssd1306.o and main.o).

Did you try moving the definitions of the symbols from header files (.h) into the source files (.c)?

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[SOLVED] Error when added segger RTT to a Keil project

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satheesh

[SOLVED] Error when added segger RTT to a Keil project

Hi,
I am working on ARM Cortex M4 processor with Keil MDK. While compiling the project, I am getting the following error. From the Error I understood that there is a multiple definition and I need to get rid of one. Can someone please tell me what is the possible solution for the error and how to implement it.

Build started: Project: Hello World
*** Using Compiler ‘V5.06 update 6 (build 750)’, folder: ‘C:Keil_v5ARMARMCCBin’
Build target ‘Hello’
linking.
.ObjectsHello World.axf: Error: L6200E: Symbol __stdout_name multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
.ObjectsHello World.axf: Error: L6200E: Symbol __stderr_name multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
.ObjectsHello World.axf: Error: L6200E: Symbol _sys_close multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
.ObjectsHello World.axf: Error: L6200E: Symbol _sys_ensure multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
.ObjectsHello World.axf: Error: L6200E: Symbol _sys_flen multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
.ObjectsHello World.axf: Error: L6200E: Symbol _sys_istty multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
.ObjectsHello World.axf: Error: L6200E: Symbol _sys_open multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
.ObjectsHello World.axf: Error: L6200E: Symbol _sys_read multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
.ObjectsHello World.axf: Error: L6200E: Symbol _sys_seek multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
.ObjectsHello World.axf: Error: L6200E: Symbol _sys_write multiply defined (by C:Keil_v5ARMARMCCBin..libarmlibc_w.l(sys_io.o) and .objectssegger_rtt_syscalls_keil.o).
Not enough information to list image symbols.
Not enough information to list load addresses in the image map.
Finished: 2 information, 0 warning and 10 error messages.
«.ObjectsHello World.axf» — 10 Error(s), 0 Warning(s).
Target not created.

SEGGER — Nino

Thank you for your inquiry.
To retarget e.g. printf to use RTT the following steps must be considered in your setup:
wiki.segger.com/Keil_MDK-ARM#RTT_in_uVision

Additionally it appears that uVision V5 requires some changes in the syscalls file. This will be fixed in the next J-Link software release.
You can also do this manually if you edit the SEGGER_RTT_Syscalls_KEIL.c as follows:

Source Code

/*********************************************************************
*
* Public const
*
**********************************************************************
*/
#if __ARMCC_VERSION Display All

Source Code

/*********************************************************************
*
* _sys_exit
*
* Function description:
* This function is called when the application returns from main
*
* Parameters:
* ReturnCode — Return code from the main function
*
*
*/
void _sys_exit(int ReturnCode) <
(void)ReturnCode;
while (1); // Not implemented
>
#if __ARMCC_VERSION >= 5000000
/*********************************************************************
*
* stdout_putchar
*
* Function description:
* Put a character to the stdout
*
* Parameters:
* ch — Character to output
*
*
*/
int stdout_putchar(int ch) <
(void)ch;
return ch; // Not implemented
>
#endif
#endif
/*************************** End of file ****************************/

If you make these changes and consider the setup info from the Wiki you should be able to use RTT in your Keil application.
If you want to avoid retargeting std lib functions you can also call the RTT API functions directly instead of using printf.

Best regards,
Nino

Please read the forum rules before posting.

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I am learning ARM programming. I’ve configured uart of lpc2148 before. But there I included entire code in single file. Today I separated them in .c and .h file. But When tried to build, I got following error

uart.axf: Error: L6200E: Symbol a multiply defined (by main.o and uart.o).
uart.axf: Error: L6200E: Symbol i multiply defined (by main.o and uart.o).
Target not created

Below is the code
main.c

//main.c

#include "uart.h"

int main(void)  {

    uart_init();
    uart_tx("Hellorn");

    while(1)
    {
        uart_rx();
        uart_tx(a);
        uart_tx("rn");
    }
    return 0;
}

uart.c

//uart.c
#include "uart.h"

void uart_init()    {
    PINSEL0 |= (5<<0);
    U0LCR = 0X83;
    U0DLL = 97;
    U0LCR = 0X03;

}

void uart_tx(char *data)    {
    while(*data)    {
        U0THR = *data;
        while(!(U0LSR&(1<<5)));
        data++;
    }
}

void uart_rx()  {
    for(i = 0; ; i++)   {
        while(!(U0LSR&(1<<0)));
        a[i] = U0RBR;

        if(a[i] == 'r')    {
            a[i] = '';
            break;
        }
    }
}

uart.h

//uart.h

#ifndef UART_H
#define UART_H

#include <LPC214X.H>
#include <stdio.h>
#include <stdint.h>

char a[100];
int i;

void uart_init();
void uart_tx(char *);
void uart_rx();

#endif

I found some links, but none of it seems to give a solution

link1

link2

asked Aug 4, 2018 at 19:07

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$begingroup$

You have declared a and i in a header, so they’re being defined in each translation unit they’re compiled in. You should put them in their respective implementation files, static if they don’t need to be shared and in the smallest scope you can.

i for example is used only as a loop counter in the rx function, either declare it at the top of the function or if you’re using c99 then declare it in the loop.

answered Aug 4, 2018 at 19:12

ColinColin

4,4492 gold badges19 silver badges33 bronze badges

$endgroup$

$begingroup$

Variables ‘a’ and ‘i’ should be declared in uart.h using the ‘extern’ attribute. Variables ‘a’ and ‘i’ should be defined in uart.c, and only in uart.c The declaration in uart.h tells the compiler about the characteristics of the two variables and the ‘extern’ attribute indicates that they are defined somewhere else (uart.c in this case).

The definition of the variables in uart.c should be outside of any function so that they have global scope. It’s a good idea to put this definition before any functions as well.

You should use better variable names, by the way.

answered Aug 4, 2018 at 19:11

Elliot AldersonElliot Alderson

30.9k5 gold badges27 silver badges66 bronze badges

$endgroup$

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Проблема:
Проект Keil MDK-ARM V5 построен с использованием библиотеки HAL.
библиотека HAL обновлена с STM32Cube FW_F1 V1.6.1 до STM32Cube FW_F1 V1.7.0,
После перекомпиляции проекта, есть 102 ошибки,

И оригинальный проект может работать правильно.
Решение:
Запрос сообщения об ошибке выглядит следующим образом:

linking...
stm32_uart_mxstm32_uart_mx.axf: Error: L6200E: Symbol SystemInit multiply defined (by system_stm32f1xx_1.o and system_stm32f1xx.o).
stm32_uart_mxstm32_uart_mx.axf: Error: L6200E: Symbol __asm___5_adc_c_7cc13d26____REV16 multiply defined (by adc_1.o and adc.o).
stm32_uart_mxstm32_uart_mx.axf: Error: L6200E: Symbol __asm___5_adc_c_7cc13d26____REVSH multiply defined (by adc_1.o and adc.o).
stm32_uart_mxstm32_uart_mx.axf: Error: L6200E: Symbol __asm___5_adc_c_7cc13d26____RRX multiply defined (by adc_1.o and adc.o).
stm32_uart_mxstm32_uart_mx.axf: Error: L6200E: Symbol hadc1 multiply defined (by adc_1.o and adc.o).
stm32_uart_mxstm32_uart_mx.axf: Error: L6200E: Symbol HAL_ADC_MspDeInit multiply defined (by adc_1.o and adc.o).
stm32_uart_mxstm32_uart_mx.axf: Error: L6200E: Symbol HAL_ADC_MspInit multiply defined (by adc_1.o and adc.o).
stm32_uart_mxstm32_uart_mx.axf: Error: L6200E: Symbol MX_ADC1_Init multiply defined (by adc_1.o and adc.o).
...
Not enough information to list image symbols.
Not enough information to list load addresses in the image map.
Finished: 2 information, 0 warning and 102 error messages.
"stm32_uart_mxstm32_uart_mx.axf" - 102 Error(s), 1 Warning(s).
Target not created.
Build Time Elapsed:  00:00:21

В проекте нет файла adc_1.c.
Этапы обработки:
1. Сначала очистите весь проект, а затем перестройте все целевые файлы, но не удалось решить проблему;
2. Я искал в Интернете и обнаружил, что со мной были похожие ошибки. Затем я проверил исходные файлы c в своем проекте и обнаружил, что некоторые исходные файлы c были добавлены повторно.

Удалите избыточные исходные файлы c, перекомпилируйте и решите проблему.

Ссылка ссылка:
Ссылка ссылка

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I am trying to compile my code but I get the error «multiply defined» despite defining my variable only in one header (For example «.ObjectsLCDADC.axf: Error: L6200E: Symbol Pin_D6 multiply defined (by lcd.o and main.o).».)

I am using Keil with an LPC1768

main.c

#include <lpc17xx.h>
#include "LCD.h"
#include "Delay.h"


//Char LCD Pins
#define LCD_RS P2_0
#define LCD_RW P2_1
#define LCD_E P2_2
#define LCD_D4 P2_4
#define LCD_D5 P2_5
#define LCD_D6 P2_6
#define LCD_D7 P2_7

int main(){
    SystemInit();
    Delay_init();
    LCD_Init(LCD_RS, LCD_RW, LCD_E, LCD_D4, LCD_D5, LCD_D6, LCD_D7);

    int main....

LCD.H

#include "Delay.h"

uint8_t Pin_RS;
uint8_t Pin_RW;
uint8_t Pin_E;
uint8_t Pin_D4;
uint8_t Pin_D5;
uint8_t Pin_D6;
uint8_t Pin_D7;

void LCD_Init(uint8_t rs, uint8_t rw, uint8_t e, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7);

....(More functions)

LCD.c

#include "LCD.h"
#include "GPIO.h"
#include "Delay.h"

void LCD_Init(uint8_t rs, uint8_t rw, uint8_t e, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7)
{
    //Set Pin Numbers
    Pin_RW = rw;
    Pin_E = e;
    Pin_RS = rs;
    Pin_D4 = d4;
    Pin_D5 = d5;
    Pin_D6 = d6;
    Pin_D7 = d7;

    //Set port Directions
    GPIO_PinDirection(Pin_D4, 1);
    ....(same for every pin and some command sending.)

}

....(Other Functions.)

(Sorry for posting my entire code but I believe it’s important and very short in this case.)

As you can see I clearly only defined my pins only once. so why does it think I’m defining it multiple times?

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