AXI4-Lite Interfaces - 3.0 English

AXI Bridge for PCI Express Gen3 Subsystem Product Guide (PG194)

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3.0 English

Read from a register that does not have all 0s as a default to verify that the interface is functional. Output s_axi_arready asserts when the read address is valid and output s_axi_rvalid asserts when the read data/response is valid. If the interface is unresponsive ensure that the following conditions are met.

  • For older versions of the AXI Bridge for PCIe Gen3 core with the axi_ctl_aclk port, ensure the axi_ctl_aclk and axi_ctl_aclk_out pins are connected to the design and are pulsing out of the IP.
  • The interface is not being held in reset, and axi_aresetn is an active-Low reset.
  • Ensure that the main core clocks are toggling and that the enables are also asserted.
  • Has a simulation been run? Verify in simulation and/or a AMD Vivado™ Design Suite debug feature capture that the waveform is correct for accessing the AXI4-Lite interface.