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Altera_Forum
Honored Contributor
16 years agoExtract pixel data from video stream
Hi, I am very new to FPGA. I am trying to configure a test system using a video input via Bitec QV card and to output pixel data to an external SPI-controlled display device. The interface to ...
Altera_Forum
Honored Contributor
16 years agoHi,
Thank you very much for replying. I must not fully understand how to use the framebuffer. I looked again at the VIP user guide and now I see that if I write 0 to the control reg this will stop the output component from updating while the input side drops frames as appropriate. I presume this is what you are referring to how it should be used. I do want to read the pixels in raster order. If possible, can you give me some hints of how to access this data from the Avalon-ST? Is there a module to use for this or do I need to provide some interpretation logic to access them? Thanks again for your help.