Author Topic: F8-PB / FPP v2 - Differential Weirdness  (Read 559 times)

Offline bh2545

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F8-PB / FPP v2 - Differential Weirdness
« on: May 18, 2018, 11:27:07 PM »
Not sure if this should go here, in the FPP forum or the "I'm an idiot" forum..


Testing a new 504 pixel matrix on the F8-PB (prototype) with the current FPP v2 build.  Everything works correctly when attached directly to any of 8 on-board ports.  When I connect a differential receiver and connect to the remote ports, I see "random" weirdness.


Differential port 1 - Ports 9 & 10 loose the last 80 pixels.  Oddly, ports 11 & 12 seem fine.
Differential port 2 - Ports 13 - 16 all seem to loose the last 186 pixels.
Differential port 3 - Ports 17 - 20 all seem to loose the last 250 pixels.
For dif ports 2 & 3 "loose" really isn't correct for the last x pixels.  In some cases there are a number of dark pixels then it seems like the rest start on some random wrong channel.

The config is fairly simple, start channel 1 for 504 pixels.

Thoughts?

Thanks,
Bill


Offline dkulp

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Re: F8-PB / FPP v2 - Differential Weirdness
« Reply #1 on: May 23, 2018, 12:11:18 PM »



Can you re-test?  I just pushed a fix that would cause a block of channels to not work correctly.  Somehow a 0 got deleted off of a memory address so it was loading bogus data from somewhere.



Dan Kulp

Offline bh2545

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Re: F8-PB / FPP v2 - Differential Weirdness
« Reply #2 on: May 26, 2018, 12:03:33 AM »
That fixed it!  Thanks Dan!

 

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