How can I get the absolute position of DE on an active line with ADV7842?

Document created by DaveD Employee on Oct 21, 2011
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44 is the CP Map in the below script

 

To get start_sav:

WRITE:

44 A1 01 ;

44 BB 00;

44 BC A0;

READ:

44 FC

44 FD

 

To get start_eav:

WRITE:

44 A1 01 ;

44 BB 00;

44 BC B0;

READ:

44 FC

44 FD

 

0xFC[4:0] contain the most significant bits of the value

0xFD[7:0] contain the least significant bits of the value

 

When you adjust the position of EAV/SAV/DE with the registers based on relative changes these are the starting points.

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