Vivado 2020.2 Block Design Containers

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Hi,

I have finally found some time to look into parsing BDC’s.

I find that the BDC HWH fragment does not have an ADDRESSBLOCKS section. I am testing with a simple BDC containing a single core IP core that defines 2 registers each with two fields.

bdc

If I connect the demo IP directly to the bus in the top diagram, the exported HWH in the XSA contains the register and field definitions. But if I put the IP in a BDC the exported BDC instance HWH (loopback_inst_0.hwh) has no definitions the same is true of the HWH in the source diagram folder.

Am I doing something incorrectly or is this expected behavior?

Cheers,
Geoff.

      <ADDRESSBLOCKS>
        <ADDRESSBLOCK ACCESS="" INTERFACE="mm_reg" NAME="reg0" RANGE="4096" USAGE="register">
          <REGISTERS>
            <REGISTER NAME="ctl0">
              <PROPERTY NAME="DESCRIPTION" VALUE="generated AXI lite RW register"/>
              <PROPERTY NAME="ADDRESS_OFFSET" VALUE="4"/>
              <PROPERTY NAME="SIZE" VALUE="32"/>
              <PROPERTY NAME="ACCESS" VALUE="read-write"/>
              <PROPERTY NAME="IS_ENABLED" VALUE="true"/>
              <FIELDS>
                <FIELD NAME="alpha">
                  <PROPERTY NAME="DESCRIPTION" VALUE="alpha control field"/>
                  <PROPERTY NAME="ADDRESS_OFFSET" VALUE="0"/>
                  <PROPERTY NAME="ACCESS" VALUE="read-write"/>
                  <PROPERTY NAME="MODIFIED_READ_VALUES" VALUE=""/>
                  <PROPERTY NAME="WRITE_CONSTRAINT" VALUE="0"/>
                  <PROPERTY NAME="READ_ACTION" VALUE=""/>
                  <PROPERTY NAME="BIT_OFFSET" VALUE="0"/>
                  <PROPERTY NAME="BIT_WIDTH" VALUE="16"/>
                </FIELD>
                <FIELD NAME="beta">
                  <PROPERTY NAME="DESCRIPTION" VALUE="beta control field"/>
                  <PROPERTY NAME="ADDRESS_OFFSET" VALUE="16"/>
                  <PROPERTY NAME="ACCESS" VALUE="read-write"/>
                  <PROPERTY NAME="MODIFIED_READ_VALUES" VALUE=""/>
                  <PROPERTY NAME="WRITE_CONSTRAINT" VALUE="0"/>
                  <PROPERTY NAME="READ_ACTION" VALUE=""/>
                  <PROPERTY NAME="BIT_OFFSET" VALUE="16"/>
                  <PROPERTY NAME="BIT_WIDTH" VALUE="16"/>
                </FIELD>
              </FIELDS>
            </REGISTER>
            <REGISTER NAME="sts0">
              <PROPERTY NAME="DESCRIPTION" VALUE="generated AXI lite RO register"/>
              <PROPERTY NAME="ADDRESS_OFFSET" VALUE="8"/>
              <PROPERTY NAME="SIZE" VALUE="32"/>
              <PROPERTY NAME="ACCESS" VALUE="read-only"/>
              <PROPERTY NAME="IS_ENABLED" VALUE="true"/>
              <FIELDS>
                <FIELD NAME="gamma">
                  <PROPERTY NAME="DESCRIPTION" VALUE="gamma status field"/>
                  <PROPERTY NAME="ADDRESS_OFFSET" VALUE="0"/>
                  <PROPERTY NAME="ACCESS" VALUE="read-only"/>
                  <PROPERTY NAME="MODIFIED_READ_VALUES" VALUE=""/>
                  <PROPERTY NAME="WRITE_CONSTRAINT" VALUE="0"/>
                  <PROPERTY NAME="READ_ACTION" VALUE=""/>
                  <PROPERTY NAME="BIT_OFFSET" VALUE="0"/>
                  <PROPERTY NAME="BIT_WIDTH" VALUE="16"/>
                </FIELD>
                <FIELD NAME="delta">
                  <PROPERTY NAME="DESCRIPTION" VALUE="delta status field"/>
                  <PROPERTY NAME="ADDRESS_OFFSET" VALUE="16"/>
                  <PROPERTY NAME="ACCESS" VALUE="read-only"/>
                  <PROPERTY NAME="MODIFIED_READ_VALUES" VALUE=""/>
                  <PROPERTY NAME="WRITE_CONSTRAINT" VALUE="0"/>
                  <PROPERTY NAME="READ_ACTION" VALUE=""/>
                  <PROPERTY NAME="BIT_OFFSET" VALUE="16"/>
                  <PROPERTY NAME="BIT_WIDTH" VALUE="16"/>
                </FIELD>
              </FIELDS>
            </REGISTER>
          </REGISTERS>
        </ADDRESSBLOCK>
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