AXI4-Stream Interfaces - AXI4-Stream Interfaces - 3.0 English - PG238

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.