I probe U1-3 and see a good FMC_SCK and at the same time I probe P4-4 and see a SCK riding on top of a 1V signal. They should look the same except for the levels and they do not.
How do I fix this?
Can you check if the enable pin of U1 - pin 10 is low.
There are two options to talk to ad9737a - FMC SPI or PIC18F24 SPI.
I am moving the thread to the High Speed DAC community.
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