STEVAL 56G3MAI not working with N657X0

alucart · ‎2026-02-04

Hi guys,
I'm try to use Camera FPC 22 pin cable with UVC mode. But it turn out screen are all black and error in console terminal is below

========================================

x-cube-n6-camera-capture v2.0.0 (3308d6b)

Build date & time: Jan 22 2026 09:34:57

Compiler: GCC 12.3.1

HAL: 1.3.0

========================================

Start streaming YUV2 | 224x224@30fps

assertion "ret == CMW_ERROR_NONE" failed: file "Src/app_cam.c", line 173, function: CAM_Init

I used binary from "x-cube-n6-camera-capture-main"
I also try to re-compile with github project "STM32N6-GettingStarted-ImageClassification Application"
with header with cmw_camera.c USE_VD56G_SENSOR , still not success,
(debug then found that driver StartStreaming can ctx->write8 but not response at function about PollReg8(..);

Anyone have get experince how to make it work?

alucart · ‎2026-02-10

Updated : My camera still work (not broken) after re-compile with preprocessor # USE_VD56G3_SENSOR at
github sample project : x-cube-n6-camera-capture-nucleo , need to //comment out some line
//cam_conf.mirror_flip = CAM_getFlipMode(sensor); at app_cam.c

Then camera can display into my Window camera or VLC player.

But still no clue about why it not work at image classification project at by pass LCD pipeline..