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relsaar's avatar
relsaar
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5 years ago

Aria V Display Port core sometimes disconnected

Hi All We have a PCB board we designed with AMD 8860 GPU that sends DP video to Aria V Display Port core (Qsys). In some of our boards we sometimes have DP connection issues. The video signal goe...
relsaar's avatar
relsaar
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5 years ago

Hi,

In my priveouse post I was referring to the av_sk_4k.

I programed the sof file you sent and got the same results:

LEDs in on state: D21, D22, D23, D24, D12, D15

LED D20 - is bilnking

LCD show message "Not Connected"

Cable were tested OK from my PC to the monitor, all the av sk SW setting are default and similar to page 18#.

Checked with alternative GPU and also with 800X600 resolusion and with color depth =8 bit and it still looks similar.

Bitec daughter displayport card is tightly secured to the AV SK with screws.

when I'm not loading the NIOS (as you suggested) I can't get the MSA LOG - please see attached terminal capture.

=Can I assume there is a failure in the hardware?

Please advise how can we tell if the failure is on the Arria V SK or at the Bitec daughter displayport card?

thanks

Ariel Saar

relsaar's avatar
relsaar
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5 years ago

Hi

I can see that the Bitec Displayport can also be Compatibility with:
•Cyclone V
•Arria II and V
•Stratix I, IV and V

we should also have Stratix IV and I get other evaluation kits as a loan - do you have an example design sof file for all of those cards?

Thanks

Ariel