FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
5749 Discussions

HDMI ip core not working at 1080p 60hz resolution

JDeff
Beginner
505 Views

I am implementing the intel HDMI IP core on an arria 10 using dynamic reconfiguration. I am able to get all lower resolutions and higher resolutions to work except 1080p @ 60 hz with 148.5 Mhz pix clk. 1080p @ 30 hz works at 74.25,hz and 4k30 at 297mhz works. When it is not working all my pll's and transceivers are locked and outputting the correct freq as seen on a scope. the HDMI core vid_lock and locked outputs are all low.

Any ideas?

0 Kudos
1 Reply
Deshi_Intel
Moderator
94 Views
HI, There are couple of things that you can try out 1) Try compile design with latest Quartus version to see if the issue go away. There could be some bugs that have been fixed with newer Quartus version 2) Have you try with HDMI example design instead ? https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an776.pdf 3) Have you validated to ensure HDMI IP VID clk and LS clk are configured correctly with the right frequency ? Thanks. Regards, dlim
Reply