I would like to know the following.
For a 4k 60fps the following values are used :
pixel clock : 594MHZ
Total horizontal count : 4400 pixel clocks
Visible pixel count : 3840
Horizontal front porch : 176
Horizontal back porch : 144
Horizontal sync : 88
Total vertical count : 2250 vertical lines
Visible line count : 2160
Vertical front porch : 8
Vertical back porch : 72
Vertical sync : 10
The IP (on Cyclone 10GX) accepts 2 pixels per clock.
what would be the correct clock frequency and count values the IP needs to receive in order to operate correctly at 4k 60 fps.
Another issue I am having is what are the infoframes values I need to set for the IP to operate at a 4k 60 fps, if at all. Does the IP need the info frames in order to output the mentioned resolution.
And last but not least I would like to know what I am suppose to see on the transceiver output of the clock signal since when connecting this line to a scope I do not see a clock signal.
Any help would be appreciated.
Welcome back and fully understand the challenges to work in this COVID pandemic period.
One thing I forgot to mention is HDMI IP max supported video resolution is 4k@p60 with 8 bit per colour (bpc)
Next, Pls see my reply below.
For the transceiver output clock you need to make sure that you are terminating it to the scope. HDMI is a CML (Current Mode Logic) so many of the HDMI transceivers require a 100ohm differential termination for it to be present.
As indicated those are the correct pixel clock frequencies required for 4k@60Fps. I recommend to get things up and running in this area quickly is a Test Pattern Generator Frame Buffer and then the Clocked Video Out.