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darla14
Associate III
September 27, 2025
Question

GPIOS for CSI on stm32n6

  • September 27, 2025
  • 3 replies
  • 665 views

Hello,

while configuring the CSI interface for camera , on its enablement in the STM32CubeMX why I can’t see the GPIOs corresponding to it in the flip section? 
does it has any dependency on any other peripheral?or clock setting?
under the configuration it says warning: this peripheral has no parameters to be configured.

Unlike in any other peripheral like I2C or  SPI where I can see the corresponding GPIO i am checking this on STM32N657X0HxQ .

regards,

 

3 replies

STTwo-32
Technical Moderator
September 27, 2025

Hello @darla14 

It may be due to the fact that there is no settings can or should be configured throw the STM32CubeMX for this peripheral (like bauderate for usart or other parameters). So, there is no configuration space and the warning is just to indicate this. For the GPIOs used for the CSI, you should be able to see them on the graphic of the MCU or on the GPIO Tab (same for pins used for other MCUs).

Best Regards.

STTwo-32

darla14
darla14Author
Associate III
September 27, 2025
thi is what I see on GPIO TAB ( only i2C which I have enabled) . On
the graphics yes they are chosen but in red.




Regards,
D
STTwo-32
Technical Moderator
September 29, 2025

Hello @darla14 

This is a known behavior that has been reported before (under internal ticket number 215638). It should be solved ASAP.

Best Regards.

STTwo-32

Visitor II
November 14, 2025

Hello

I'm also facing the same issue as you at the moment. Could you tell me if your problem has been solved? And could you please explain the handling method?

Visitor II
November 14, 2025

This can definitely be confusing, especially since peripherals like I2C and SPI clearly show their GPIOs in CubeMX, but CSI doesn’t.

For the STM32N657 series, the CSI interface works a bit differently. Its pins don’t always appear in the “Flip” section because they’re tied to a dedicated hardware block with fixed or semi-fixed pin mappings. In many cases, CubeMX only shows them in the main Pinout & Configuration view once the peripheral clock is enabled, so it’s worth double-checking the RCC settings too. The “no parameters to configure” warning is normal for CSI on this device.

If you want to see how others handled this, here’s a related discussion from the same forum: https://community.st.com/t5/stm32-mcus-boards-and-hardware-visit/stm32n6-fpc-camera/td-p/755889