AnsweredAssumed Answered

ADV7180 two camera input

Question asked by tneagoe on Jul 11, 2011
Latest reply on Nov 17, 2011 by tneagoe

This is a request from one of my customers. Any help?

 

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We are using in one of our products an ADV7180BSTZ video decoder.

We need to read alternately two cameras CAM1 and CAM2, both composite (CVBS).

Connecting only CAM1 is OK. Everything works well when connecting both cameras and switching from one to the other.

We encounter a synchronization problem when connecting only CAM2. According to the documentation

we can coonect only one CVBS camera on any of the 6 inputs without issue.

We initialize the ADV71780 based on ADI's recommendations but there are hidden registers that we don't know

if they cet initialized correctly. Any idea what's going on?

Is there additional information related to this operating mode? The only document on ADI's website is the datasheet.

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TN

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