[MinnowBoard] HDMI level shifters and revision A4

[Leigh Gawne]

Hi guys,

 

I have a customised daughterboard for the Minnoxboard Max which includes an
HDMI to LVDS subsystem. During test, I have found that some boards are
unable to drive the connected LCD display panel. Further investigation leads
me to believe that it is the missing level shifters on the Minnowboard Max
which mean that this is not working as expected (connecting other HDMI
sources to the board, i.e. PC, etc. work absolutely fine. Inspection of the
diff pair levels on a scope shows that it is definitely marginal). 

 

I understand that revision A4 of the board
(https://bugzilla.yoctoproject.org/show_bug.cgi?id=7027) will include these
level shifters. My question is whether this revision of the board is
available yet, and if so, how I couple go about ordering a couple of them
for test to ensure it solves my problem. I purchase around 10 boards around
a month or so ago, and these are all revision A2.

 

Any insights or additional information would be most helpful.

 

Regards,

 

Leigh

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