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Altera_Forum's avatar
Altera_Forum
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14 years ago

connection between VIP suite and SGDMA (inconsistent data width)

Hi all My project is to transfer video data to PCIE. As my first step, I try to use Test Pattern Generator (TPG) as a temporary video data input and connect the output data from TPG to SGD...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Make your source video from the TPG be 8 bits.

When you output to your SDI receiver, connect the 8 bit video from the TPG to the 8 MSBs of the 10 bit SDI interface.

The low 2 LSBs you can just set to zero.

like so:

SDI_video(9 downto 2) <= TPG_vid_out;

SDI_video(1 downto 0) <= "00";