I use imx6ul + yocto-4.1.15-ga to develop product, when debuging csi module + ov9712(parallel) on gated mode, we found image we get sometimes is ok.
But sometimes we can't get anything, at this time I use memtool to check CSI register, I found CSI.CSIDMASA_FB1 is equal to CSI.CSIDMASA_FB2, but if the image is OK, these two registers value is different, and these two registers value is only the difference point between 2 situation.
I attach the memtool result.
Pls help me to solve it.
this is we get correct image.
this we can't get anything, no data,