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Zybo: HDMI clock frequencies allowed


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Hi, In the HDMI specs the minimum resolution of 640x480 @ 60Hz, which has a pixel clock frequency is of about 25MHz (25.175 MHz IIRC) - see http://www.microprocessor.org/HDMISpecification13a.pdf

If your pixel clock is lower than this you will have to add a scan-line doubler, and send each pixel twice (to make each pixel into a 2x2 square).


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