I found that the input analog signal RAIN0/GAIN0/BAIN0 (Pin2,6,14) is changed after configure the IIC register of AD9984A
My computer output a pure red colour of a whole frame
the amplitude is same in all line of a frame
Following is waveform when register is configured
the amplitude of previous a few lines are lower than following lines
Is it because of the Clamp setting ?
Thanks a lot