If data is not being transmitted or received, check the following conditions:
- If transmit
<interface_name>_tready
is stuck Low following the<interface_name>_tvalid
input being asserted, the subsystem cannot send data. - If the receive
<interface_name>_tvalid
is stuck Low, the subsystem is not receiving data. - Check that the
video_aclk
and dphy_clk_200M inputs are connected and toggling. - Check subsystem configuration.