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Cococarbine
Associate II
May 1, 2026
Solved

SM32N6570-DK Camera Guide

  • May 1, 2026
  • 1 reply
  • 207 views

Hello, I am following this guide:

How to integrate TouchGFX and camera middleware on an STM32N6570-DK 

and seem to be getting an I2C1 undefined reference (below).  Is there something I need to change?  I have I2C2 enabled in my .ioc, but don't see anything about enabling I2C1

C:/TouchGFXProjects/VisionControlboard/STM32CubeIDE/Appli/Debug/../Middlewares/stm32-mw-camera/cmw_camera_customized.c:1951:(.text.CMW_CAMERA_IMX335_Init+0x144): undefined reference to `BSP_I2C1_Init'

C:/ST/STM32CubeIDE_2.0.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.14.3.rel1.win32_1.0.100.202602081740/tools/bin/../lib/gcc/arm-none-eabi/14.3.1/../../../../arm-none-eabi/bin/ld.exe: C:/TouchGFXProjects/VisionControlboard/STM32CubeIDE/Appli/Debug/../Middlewares/stm32-mw-camera/cmw_camera_customized.c:1951:(.text.CMW_CAMERA_IMX335_Init+0x148): undefined reference to `BSP_I2C1_DeInit'

C:/ST/STM32CubeIDE_2.0.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.14.3.rel1.win32_1.0.100.202602081740/tools/bin/../lib/gcc/arm-none-eabi/14.3.1/../../../../arm-none-eabi/bin/ld.exe: C:/TouchGFXProjects/VisionControlboard/STM32CubeIDE/Appli/Debug/../Middlewares/stm32-mw-camera/cmw_camera_customized.c:1951:(.text.CMW_CAMERA_IMX335_Init+0x14c): undefined reference to `BSP_I2C1_ReadReg16'

C:/ST/STM32CubeIDE_2.0.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.14.3.rel1.win32_1.0.100.202602081740/tools/bin/../lib/gcc/arm-none-eabi/14.3.1/../../../../arm-none-eabi/bin/ld.exe: C:/TouchGFXProjects/VisionControlboard/STM32CubeIDE/Appli/Debug/../Middlewares/stm32-mw-camera/cmw_camera_customized.c:1951:(.text.CMW_CAMERA_IMX335_Init+0x150): undefined reference to `BSP_I2C1_WriteReg16'

C:/ST/STM32CubeIDE_2.0.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.14.3.rel1.win32_1.0.100.202602081740/tools/bin/../lib/gcc/arm-none-eabi/14.3.1/../../../../arm-none-eabi/bin/ld.exe: C:/TouchGFXProjects/VisionControlboard/STM32CubeIDE/Appli/Debug/../Middlewares/stm32-mw-camera/cmw_camera_customized.c:1951:(.text.CMW_CAMERA_IMX335_Init+0x154): undefined reference to `BSP_GetTick'

 

Thank you

Best answer by OumaimaFekih

Dear Coccarbine,

From your log, I can see that the build completed successfully. The issue you are experiencing appears to be related to the linker, which indicates that it can see the function declarations but cannot find their definitions.

Also, the article does not include any I2C configuration in STM32CubeMX, since the camera middleware uses the I2C support provided by the BSP. Therefore, please make sure that you have completed the step of importing the required file into you STM32CubeIDE project tree, stm32n6570_discovery_bus.c, as shown in the screenshot down below.

OumaimaFekih_0-1777892800862.png

Best regards,

Oumaima

T.O.M.A.S – Technically Oriented Microcontrollers Application Support

1 reply

OumaimaFekih
OumaimaFekihAnswer
ST Employee
May 4, 2026

Dear Coccarbine,

From your log, I can see that the build completed successfully. The issue you are experiencing appears to be related to the linker, which indicates that it can see the function declarations but cannot find their definitions.

Also, the article does not include any I2C configuration in STM32CubeMX, since the camera middleware uses the I2C support provided by the BSP. Therefore, please make sure that you have completed the step of importing the required file into you STM32CubeIDE project tree, stm32n6570_discovery_bus.c, as shown in the screenshot down below.

OumaimaFekih_0-1777892800862.png

Best regards,

Oumaima

T.O.M.A.S – Technically Oriented Microcontrollers Application Support

    C
    CococarbineAuthor
    Associate II
    May 15, 2026

    Hi Oumaima,

    Thank you for your assistance; I discovered that I had the BSP included improperly.  

    I was also wondering if you have come across a black camera feed - I have gone through this guide twice, and both times after I program the FSBL, Appli, and assets I seem to get only a black camera feed.  There are no build errors, and I have verified the camera works using a different example template.

    Cococarbine_0-1778881764329.png

    Thank you,
    Ed

    OumaimaFekih
    OumaimaFekih
    ST Employee
    May 18, 2026

    Dear Ed,

    Are you sure that you have enabled the RIF for the DCMIPP peripheral in the .ioc file?

     

    OumaimaFekih_1-1779096915786.png

    Otherwise, if the issue persists, could you please check the debug session and identify exactly where the code is getting stuck? Knowing the precise point would help us a lot.

    Finally, if possible, please share your project so I can test it on our side and get back to you as soon as the issue is resolved.

    Best regards,

    Oumaima

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