I was trying to capturing hdmi signal and display video on VGA monitor using DVI to RGB IP Core (version 1.6 or 1.7). Everything works correctly for 800x600 1024x768 and 1280x720. But for other resolutions (1280x1024 1600x900 1680x1050 and 1920x1080) image on external VGA monitor has very poor quality. Could anyone suggest where is the problem. In dvi2rgb spec I've found info about constraining tmds clock so based on my calculation for ZYBO IP Core should work correctly for 1680x1050 resoultion (tmds clock is about 120). I am using this IP Core in bigger project and I need to explain where is the problem. I can also upload my project in Vivado.
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kondzio9224
Hi Everyone,
I was trying to capturing hdmi signal and display video on VGA monitor using DVI to RGB IP Core (version 1.6 or 1.7). Everything works correctly for 800x600 1024x768 and 1280x720. But for other resolutions (1280x1024 1600x900 1680x1050 and 1920x1080) image on external VGA monitor has very poor quality. Could anyone suggest where is the problem. In dvi2rgb spec I've found info about constraining tmds clock so based on my calculation for ZYBO IP Core should work correctly for 1680x1050 resoultion (tmds clock is about 120). I am using this IP Core in bigger project and I need to explain where is the problem. I can also upload my project in Vivado.
Thanks for any help
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