Inquiry about- DCMI of STM32U595RJT6Q

[Ankur_1]

Good Evening Sir/Mam, 

Sir/Mam, I have a query about the DCMI of STM32U595RJT6Q. I have read the Datasheet of STM32U595xxx and it was written in it that- DCMI of this MCU is for use with Black & White Camera Modules and it is assumed that all preprocessing is pre- performed in the Camera Module. 

Sir/Mam, it would be very helpful if you could please confirm and verify these both things (Interface with Black & White Camera Module and Preprocessing is needed to be pre-  performed in the Camera Module), and if you could please provide any-  websites at which- X24 & X5 Camera Modules would be available at cheapest rates (if any). 

Thanking You, 

ANKUR. 

[KDJEM.1 · Accepted solution]

Hello @Ankur_1 and welcome to the community :),

The DCMI interface is not supported in the STM32U595RJT6Q, but is supported in the STM32U595RJT6 as mentioned in the datasheet. 

According to this sentence "This interface is for use with black and white cameras, X24 and X5 cameras, and it is
assumed that all preprocessing such as resizing is performed in the camera module."

In fact X5 and X24 cameras are referring to very old ST cameras and should be removed from the datasheet to avoid any confusion with updated X24 cameras that can be found on internet. I reported this internally.

To know if a CMOS sensor (a camera module) is compatible with the DCMI or not, the user must check the
following points in the CMOS sensor specifications:
• parallel interface (8-, 10-, 12-, or 14-bit)
• control signals (VSYNC, HSYNC, and PIXCLK)
• supported pixel clock frequency output
• supported data output

AN5020 application note mentioned some CMOS sensors examples that are compatible with the STM32 DCMI.

Internal ticket number: 186544 (This is an internal tracking number and is not accessible or usable by customers).

Thank you.

Kaouthar