Forum Discussion

ss's avatar
ss
Icon for New Contributor rankNew Contributor
5 years ago

CVO simulation configuration

I have a simple system consisting of a TPG and CVO. When I use the NTSC preset the CVO simulates fine. I added a MM BFM and load the CVO configuration registers. The video output of the CVO never ...
CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


Just to keep you posted on my debug finding. Per my investigation using Q19.4Pro with S10 device (available in my local installation), I found that the issue seems to be happening when we are selecting the embedded sync configuration in the CVO. As I tested with separate wires, the CVO simulation seems to be working fine. I notice that in the Q19.4Pro CVO, there is an additional signal of sdi_cvo_rden. As I tested driving this signal to 1'b1, the CVO has a constant output which seems not right.


Can you try with separate sync to see if it work to narrow down our suspect that it is related to embedded sync?


Thank you.


  • ss's avatar
    ss
    Icon for New Contributor rankNew Contributor
    5 years ago

    Hi,

    I also ran the simulation with separate syncs. I observed that the data changed following the input data but I had no sync signals

    • CheepinC_altera's avatar
      CheepinC_altera
      Icon for Regular Contributor rankRegular Contributor
      5 years ago

      Hi,

      Thanks for your help. For your information, I am currently consulting Factory on this and pending for their response. I will keep you posted on the progress by end of next week or as soon as there is any valid response. Please ping me if you do not hear back from me. For the time being, as a workaround to avoid gating your progress, probably you can look into using Quartus Standard Edition with A10 device.

      Sorry for the inconvenience.