I am using the ADV7623, and until recently haven't been concerned with Fast Switching. A recent project requires it, and my first attempts to get it working have failed. From the firmware point-of-view, it appears that all the proper registers are being correctly set, but despite that, the actual switching time is about 5+ seconds.
Is there any issue I should be aware of to make Fast Switching work?
My hardware only uses two of the four input ports, I'm wondering if that could somehow be related to the problem.
While my application software is based on the reference design, it is possible I've messed up something unintentionally. I'm going test the evaluation board with "virgin" ADI repeater software and see if that fast switches or not (after I go get it out of storage).