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Problem with linking : Error: L6218E: Undefined symbols

Hello,

I created a project on STM32F407ZET6 with Keil µVision V5 14.0.0.

When build project I have these errors:

compiling main.c...
compiling os_app_hooks.c...
linking...
.\Flash\Obj\output.axf: Error: L6218E: Undefined symbol UART1_Init (referred from bsp.o).
.\Flash\Obj\output.axf: Error: L6218E: Undefined symbol UART3_Init (referred from bsp.o).
.\Flash\Obj\output.axf: Error: L6218E: Undefined symbol UART1_RxDMA_ReceiveLeftStr (referred from main.o).
Not enough information to list image symbols.
Finished: 1 information, 0 warning and 3 error messages.
".\Flash\Obj\output.axf" - 3 Error(s), 3 Warning(s).
Target not created.
Build Time Elapsed: 00:00:33

I have included .h files, and added .c files to project group.

Thanks!

Top replies

Westonsupermare Pier over 10 years ago in reply to xiaokang zhang +1

OK, but where is the code in bsp_uart.c? Is that dependent on a define? For whatever reason the body of the functions are not getting compiled. This should be apparent with careful evaluation of the...

Parents

0 xiaokang zhang over 10 years ago in reply to Westonsupermare Pier

Because have writed description, so there's no post codes.

some codes in bsp_uart.c:

#include "bsp.h"

/***************************** USART1 Definition *****************************/
static   OS_EVENT           *UART1Sem;

static   UART_Data_t         Uart1_Data;
static   COMM_Q_char         UART1_RxTmpBuf[UART1_FIFO_LENGTH + 1];

static   DMA_InitTypeDef     DMA_UART1TxStructure;
static   DMA_InitTypeDef     DMA_UART1RxStructure;
/*************************** End USART1 Definition ***************************/

/***************************** USART3 Definition *****************************/
static   OS_EVENT           *UART3Sem;

static   UART_Data_t         Uart3_Data;
/*************************** End USART3 Definition ***************************/

//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// USART1 Function
// USART1 work with DMA mode using DMA2_Stream5 and DMA2_Stream7.
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


/*+++++ association code +++++*/
/******************************************************************************
*                                      UART1_Init()
*
* Description : Initialize the USART1 peripheral.
* Argument(s) : none.
* Return(s)   : TRUE or FALSE.
* Caller(s)   : BSP_Init().
* Note(s)     : none
******************************************************************************/
u8 UART1_Init(void)
{
        COMM_Q_Status tmpSts;

    UART1_GPIO_Config();
    UART1_Config();
    UART1_DMA_Config();
    UART1_NVIC_Config();


    tmpSts = COMM_QCreate(&Uart1_Rx_Q, Uart1_Data.RxBuffer, UART1_RxBufferSize);
    if (tmpSts == COMM_Q_FAILURE) {
        return FALSE;
    }
    tmpSts = COMM_QCreate(&Uart1_Tx_Q, Uart1_Data.TxBuffer, UART1_TxBufferSize);
    if (tmpSts == COMM_Q_FAILURE) {
        return FALSE;
    }

        UART1Sem   = OSSemCreate(1);
        if (UART1Sem == NULL) {
                return FALSE;
        }

        return TRUE;
}


/*+++++ association code +++++*/
/******************************************************************************
*                                      UART3_Init()
*
* Description : Initialize the USART3 peripheral.
* Argument(s) : none.
* Return(s)   : TRUE or FALSE.
* Caller(s)   : BSP_Init().
* Note(s)     : none
******************************************************************************/
u8 UART3_Init(void)
{
        COMM_Q_Status tmpSts;

    UART3_GPIO_Config();
    UART3_Config();
    UART3_DMA_Config();
    UART3_NVIC_Config();


    tmpSts = COMM_QCreate(&Uart3_Rx_Q, Uart3_Data.RxBuffer, UART3_RxBufferSize);
    if (tmpSts == COMM_Q_FAILURE) {
        return FALSE;
    }
    tmpSts = COMM_QCreate(&Uart3_Tx_Q, Uart3_Data.TxBuffer, UART3_TxBufferSize);
    if (tmpSts == COMM_Q_FAILURE) {
        return FALSE;
    }

        UART3Sem   = OSSemCreate(1);
        if (UART3Sem == NULL) {
                return FALSE;
        }

        return TRUE;
}


/*+++++ association code +++++*/
/******************************************************************************
*                                      UART1_RxDMA_ReceiveLeftStr()
*
* Description :
* Argument(s) : none.
* Return(s)   : none.
* Caller(s)   : none.
* Note(s)     : none
******************************************************************************/
void UART1_RxDMA_ReceiveLeftStr(void)
{
        u16 i;

        COMM_QPushStr(&Uart1_Rx_Q, UART1_RxTmpBuf);

        DMA_Cmd(DMA2_Stream5, DISABLE);
        DMA_UART1RxStructure.DMA_MemoryBaseAddr = (u32)UART1_RxTmpBuf;
        DMA_UART1RxStructure.DMA_BufferSize = (u32)UART1_FIFO_LENGTH;
        DMA_Init(DMA2_Stream5, &DMA_UART1RxStructure);
        DMA_Cmd(DMA2_Stream5, ENABLE);

        for (i=0; i<UART1_FIFO_LENGTH+1; i++) {
                UART1_RxTmpBuf[i] = 0;
        }
}

Reply

0 xiaokang zhang over 10 years ago in reply to Westonsupermare Pier

Because have writed description, so there's no post codes.

some codes in bsp_uart.c:

#include "bsp.h"

/***************************** USART1 Definition *****************************/
static   OS_EVENT           *UART1Sem;

static   UART_Data_t         Uart1_Data;
static   COMM_Q_char         UART1_RxTmpBuf[UART1_FIFO_LENGTH + 1];

static   DMA_InitTypeDef     DMA_UART1TxStructure;
static   DMA_InitTypeDef     DMA_UART1RxStructure;
/*************************** End USART1 Definition ***************************/

/***************************** USART3 Definition *****************************/
static   OS_EVENT           *UART3Sem;

static   UART_Data_t         Uart3_Data;
/*************************** End USART3 Definition ***************************/

//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// USART1 Function
// USART1 work with DMA mode using DMA2_Stream5 and DMA2_Stream7.
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


/*+++++ association code +++++*/
/******************************************************************************
*                                      UART1_Init()
*
* Description : Initialize the USART1 peripheral.
* Argument(s) : none.
* Return(s)   : TRUE or FALSE.
* Caller(s)   : BSP_Init().
* Note(s)     : none
******************************************************************************/
u8 UART1_Init(void)
{
        COMM_Q_Status tmpSts;

    UART1_GPIO_Config();
    UART1_Config();
    UART1_DMA_Config();
    UART1_NVIC_Config();


    tmpSts = COMM_QCreate(&Uart1_Rx_Q, Uart1_Data.RxBuffer, UART1_RxBufferSize);
    if (tmpSts == COMM_Q_FAILURE) {
        return FALSE;
    }
    tmpSts = COMM_QCreate(&Uart1_Tx_Q, Uart1_Data.TxBuffer, UART1_TxBufferSize);
    if (tmpSts == COMM_Q_FAILURE) {
        return FALSE;
    }

        UART1Sem   = OSSemCreate(1);
        if (UART1Sem == NULL) {
                return FALSE;
        }

        return TRUE;
}


/*+++++ association code +++++*/
/******************************************************************************
*                                      UART3_Init()
*
* Description : Initialize the USART3 peripheral.
* Argument(s) : none.
* Return(s)   : TRUE or FALSE.
* Caller(s)   : BSP_Init().
* Note(s)     : none
******************************************************************************/
u8 UART3_Init(void)
{
        COMM_Q_Status tmpSts;

    UART3_GPIO_Config();
    UART3_Config();
    UART3_DMA_Config();
    UART3_NVIC_Config();


    tmpSts = COMM_QCreate(&Uart3_Rx_Q, Uart3_Data.RxBuffer, UART3_RxBufferSize);
    if (tmpSts == COMM_Q_FAILURE) {
        return FALSE;
    }
    tmpSts = COMM_QCreate(&Uart3_Tx_Q, Uart3_Data.TxBuffer, UART3_TxBufferSize);
    if (tmpSts == COMM_Q_FAILURE) {
        return FALSE;
    }

        UART3Sem   = OSSemCreate(1);
        if (UART3Sem == NULL) {
                return FALSE;
        }

        return TRUE;
}


/*+++++ association code +++++*/
/******************************************************************************
*                                      UART1_RxDMA_ReceiveLeftStr()
*
* Description :
* Argument(s) : none.
* Return(s)   : none.
* Caller(s)   : none.
* Note(s)     : none
******************************************************************************/
void UART1_RxDMA_ReceiveLeftStr(void)
{
        u16 i;

        COMM_QPushStr(&Uart1_Rx_Q, UART1_RxTmpBuf);

        DMA_Cmd(DMA2_Stream5, DISABLE);
        DMA_UART1RxStructure.DMA_MemoryBaseAddr = (u32)UART1_RxTmpBuf;
        DMA_UART1RxStructure.DMA_BufferSize = (u32)UART1_FIFO_LENGTH;
        DMA_Init(DMA2_Stream5, &DMA_UART1RxStructure);
        DMA_Cmd(DMA2_Stream5, ENABLE);

        for (i=0; i<UART1_FIFO_LENGTH+1; i++) {
                UART1_RxTmpBuf[i] = 0;
        }
}

Children

0 xiaokang zhang over 10 years ago in reply to xiaokang zhang

Finded the reason of error.

Click the right mouse button to view file "bsp_uart.c" options, The 'Path' is wrong, correct path and rebuild project, compiling is OK.

Thanks!
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