Quad hat not in sync

Raspberry Pi Cameras libcamera
,
1
  1. Where did you get the camera module(s)?
    uctronics
  2. Model number of the product(s).
    B0388
  3. What hardware/platform were you working on?
    pi cm4 with bullseye
  4. Instructions you have followed. (link/manual/etc.)
    Raspberry Pi libcamera Guide - Arducam
  5. Problems you were having.
    The bottom two cameras are desynced from the top two, there’s about a 100ms delay between the two. Is there any way to fix this?

Thanks!

test
test1920×1442 70.2 KB

2

hi @epoliquin

A: mipi rx0
B: mipi rx1
C: mipi rx2
D: mipi rx3

HAT has no frame cache, so it needs to process two frames into one, the first frame only needs A、B and the second frame only needs C、D, so that a 2x2 quadruple display can be achieved.

The result is that A、B is fully synchronized and C、D is fully synchronized. C、D is delayed by 1 frame compared to A、B.