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How to check if the packet or AVI checksum error with ADV7630 for secondary path

Question asked by daoyin Employee on Sep 2, 2013
Latest reply on Sep 3, 2013 by GuenterL

In general condition HDMI RX can't checked out if HDCP error, So full screen snow points video appears.

ADV7630 have two signal path.  I think if RX HDCP error, there should be some checksum error meanwhile. 

In user manual, the registers about Packet such as IO map 0x88 should be related with primary path

But I don't know where to check the secondary path packet issue.