Hi,
I have two problems with HDMI connection.
1-
In most circuits there is a level shifter to adjust 3.3v HDMI signals up to 5v connector.
Normally, in some circuits schematics there are coupling capacitors in between the level shifter and graphic cards output
however, in some others there is no coupling capacitor.
As a rule of thumb, should I have to put these caps or it depends on the shifter design?
( My design shows exactly nothing, so I am suspicious the reason is that I did not use any coupling cap)
2-
HDMI connection has 4 lanes. Does any one know if these lanes are interchangeable or not?
Accidentally I connected Lane 4 into lane 1 and vice versa.
Thanks
Bests.
I have two problems with HDMI connection.
1-
In most circuits there is a level shifter to adjust 3.3v HDMI signals up to 5v connector.
Normally, in some circuits schematics there are coupling capacitors in between the level shifter and graphic cards output
however, in some others there is no coupling capacitor.
As a rule of thumb, should I have to put these caps or it depends on the shifter design?
( My design shows exactly nothing, so I am suspicious the reason is that I did not use any coupling cap)
2-
HDMI connection has 4 lanes. Does any one know if these lanes are interchangeable or not?
Accidentally I connected Lane 4 into lane 1 and vice versa.
Thanks
Bests.
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