I am reading the documentation for RFNoC SEP Control Ports and I came across this:
"Each SEP can have an AXIS-Ctrl and an AXIS-CHDR port, as indicated by the ctrl and data options. At least one AXIS-Ctrl port is required to communicate with the RFNoC blocks, so ctrl typically enabled on just the first SEP. Every SEP will usually have AXIS-CHDR connections to one or more RFNoC blocks, so data is usually enabled on all SEPs." ...from: https://kb.ettus.com/Getting_Started_with_RFNoC_in_UHD_4.0 I see the axis_ctrl_crossbar_nxn, but I am unsure what the statement about the first SEP is supposed to mean. Don't all the endpoints need some type of control to configure the endpoint? Is this supposed to mean that so long as a CHDR data port is connected to the SEP, then configuration can be passed that way? If this is the case, does each SEP need at least 1 IN and 1 OUT port? Is the only downside to enabling all the SEP's to have control ports is some extra utilization in the FPGA? Can someone clarify what this is supposed to mean? Thanks, Brian
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