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:
- The
s_axi_aclk
andaclk
inputs are connected and toggling. - The interface is not being held in reset, and
s_axi_areset
is an active-Low reset. - The interface is enabled, and
s_axi_aclken
is active-High (if used). - The main subsystem clocks are toggling and that the enables are also asserted.
- Add AXI4-Lite interface to ILA, and analysis data captured when triggering at s_axi_rvalid.