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Altera_Forum
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17 years ago

Frame Buffer (sopc) Issues

Hi, I am getting some issue for connecting an 1280X720P@50Hz camera to an cyclone III development board(starter kit). I am getting the torn video at the output. I have attached the images of th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Hi,

Some intresting observation, test pattern (1280X720p@50Hz) running with external clock(camera clock 74.25MHz) works fine so from this test i concluded that there is no bandwidth issue with this resolution.

I looked at the camera DVI output data enable signal, there i found that the the TI DVI receiver was generating data enable for more than 1280 pixel value, which i fixed it by writing a samll code in FPGA and woooow the result was clear picture...:)

know i am trying to connect 1920X1080i to see wether cyclone III starter board has bandwidth to support this resolution