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JLee25's avatar
JLee25
Icon for Contributor rankContributor
5 years ago

HDMI Long Lock Time

Hi, I am facing the Rx long lock time issue on HDMI 2.0 resolution. I am using Cyclone 10 GX + Quartus 19.2. Do you know how to reduce it? Thank you! BRs, Johnson
Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi Johnson,

Ok, thanks for providing more info but let's not mix up the 2 issues here.

  1. Regarding UHD is not working issue
  • There are a lot of factor that may impact the functionality like Quartus design timing closure, board signal_integrity, transceiver link tuning and etc
    • You need to slowly isolate the issue first
  1. Regarding HDMI slow lock time issue
  • For this, I have clarified with Intel Engineering team. I get a better understanding now and sorry for the confusing design limitation write up in the HDMI design example doc
    • What the attached design example statement screen shot means is
      • using HDMI IP only, it won’t achieve fast lock time
      • As a workaround, user can follow HDMI design example to use the symbol_aligner.v design to improve the lock time.

Thanks.

Regards,

dlim