Dear Sir,
I designed it as follows.
It is operating normally. Video was output.
However, CSI TX throughput is a problem.
1. OV13850 sensol Connect 4lane
2. 2112 x 1568 x 20frm x 10bit = 662,323,200 BIT /4 1 lane = 19.7Mbyte
2-1. Increasing the frame to more than 20 corrupts MIPI DATA.
* 20frame
* 20 frame up
->Is this a throughput issue?
->(One lane = about 20 megabytes) Is it right?
Thanks & Regards
Hi Cho,
Total CSI bandwidth can be calculated using the following equation:
HorizontalResolution x VerticalResolution x FrameRate x BitsPerPixel x 10% Overhead
2112 x 1568 x 20 fps x 10 bits/pixel x 10% = 728Mbps
So your CSI data rate per lane would be:
728Mbps / 4 Lanes = 182Mbps per lane
The data rate is too low. We recommend at least 400Mbps per lane.
Could you increase your frame rate to 60fps and see what happens?
I'm also attaching scopeshots of an example of correct CSI data LP/HS transition:
Best,
Jiashow
