AXI4-Stream Interfaces - 3.1 English

If data is not being transmitted or received, check the following conditions:

• If the 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 aclk inputs are connected and toggling.
• Check that the AXI4-Stream waveforms are being followed.
• Check subsystem configuration.