EV1 & MB1379 Performance

[Eldam]

Hello ST Teams!

I'd like to know if someone have ever tried to get 1920*1080*30fps with the configuration above (STM32MP157C-EV1 and MB1379 board).

We'd like to achieve this performance, OV5640 datasheet camera says "ok for me"

v4l2 listing capabilities says "ok for me" :

               Size: Discrete 1920x1080

                       Interval: Discrete 0.067s (15.000 fps)

                       Interval: Discrete 0.033s (30.000 fps)

But if we try with dev board (OSD32BRK) and flying wires with camera(OV5640), fps is limited to 13fps.

My question is: Is it possible to achieve 30fps in this configuration?

we will reproduce schematics of (STM32MP157C-EV1 and MB1379 board) camera part

(dcmi + ext clk ) , but we're not sure of fps performance .

from: "dm00693021-stm32mp1-series-interfacing-with-a-mipi-csi2-camera-stmicroelectronics.pdf" (okay its using he STMIPID02 but commands are the same)

root@stm32mp1-av96:~# v4l2-ctl --set-parm=30;

root@stm32mp1-av96:~# v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat=RGBP --stream-mmap --stream-count=-1

Can someone try it ?

[OlivierK · Accepted solution]

Hello Eldam (Community Member),

The Maximum DCMI performance that can be acheived with the STM32MP157 is 24Mpix/s with 16 bits per pixel using 8 bits parallel bus.

Therefore 13 fps that you've found for 1920x1080 resolution is correct.

Regards,

Olivier

[Eldam]

Hello Olivier,

Thanks for answering me.

By the time, we have been able to get 30fps by lowering resolution.

Have nice summer holidays!