OV9281 erroneous values for hts and vts

[andigandi]

Using the C interface of libarducam_mipicamera.so, hts and vts are being set to erroneous values. According to user bin from your forums (see here), these values shall not be smaller than the resolution in pixels, but since there is no datasheet available, I can not verify this. I have inspected hts and vts for the following modes:

• mode: 11, width: 1280, height: 800, pixelformat: GREY, desc: Used for ov9281 2lanes raw8 1280×800 external trigger mode hts=728, vts=910
• mode: 12, width: 1280, height: 800, pixelformat: Y10P, desc: Used for ov9281 2lanes raw10 1280×800 external trigger mode hts=1465, vts=910
• mode: 13, width: 1280, height: 720, pixelformat: GREY, desc: Used for ov9281 2lanes raw8 1280×720 external trigger mode hts=728, vts=910
• mode: 14, width: 640, height: 400, pixelformat: GREY, desc: Used for ov9281 2lanes raw8 640×400 external trigger mode hts=728, vts=904
• mode: 15, width: 320, height: 200, pixelformat: GREY, desc: Used for ov9281 2lanes raw8 320×200 external trigger mode hts=728, vts=904

Since you need a correct value of hts for calibrated exposure times, I would really appreciate this being fixed.

This issue happens with the current commit 21e94e795bca24025d24e679fbcca9d607de2e66 but also with previous versions.

[raniereee]

Hi,

Have you ever solved this question?

I have tried to set fixed FPS by changing TIME_VTS high and low, but when I write to registers, my strobe stop to work, and I dont know if is correct. Moreover, I need of strobe to syncronize my flash light.

Without manual have no way.