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P5 Panel not working with OctoPlus and BBB Black

Started by Giannifp, March 23, 2022, 08:51:06 PM

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CaptainMurdoch

Quote from: Giannifp on April 26, 2022, 09:20:52 AMToday I was able to make the P2.5 panels work using the RPi and the CL card, but I think reached the limit of capability. I'm noticing a flickering, which is random in nature, where the display seems to blackout really fast. I checked the time between the sync packets and noticed, the CL Sending card is sending every about 0.2 ms, while the RPi is going into the 0.7 to 0.9 ms which is understandable.

Which packets are you referring to?  FPP should be sending packets out at the same frequency as the timing of your .fseq file, so every 50ms, 25ms, etc. depending on the timing in your sequence.  By default, FPP will use 50ms timing if you are not playing a sequence.  With a single 128x64 panel, that should be 66 packets every refresh, 2 for init and 64 for the 64 rows of pixels on the panel.
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Chris

Giannifp


I was referring to the time for the whole burst of the frame not the time in between packets. In any case, it's solved. I reverted back the changes and started from scratch (new image) and got it to work for the P2.5 128x64 panels using the stock firmware on the Colorlight card. 

For the PWM firmware on the ColorLight Cards needed to drive some of the exotic panels out there, some changes will be needed on the packet format. I want to do some more testing once I get some more panels in that I have ordered. 

Thanks for all the help!

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