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Unmapped point (not-mapped) in (R)

artoo

What does it means when Conformal finds an unmapped point that exists in the revised file (netlist) but not in the golden file (rtl)?

E.g. here is my message:

Unmapped point (not-mapped):
  (R)   1516   DFF  ... hierarchy... /ic_addr_reg_22/U$1

 

I see the always block case statement in the rtl for ic_addr_reg so it exists in rtl, and other similar structures exist which don't cause the same problem.

   always @(posedge ClkIn)
     casez({clk_qual, m_state, ic_update_addr})
       {1'b0, 4'b????,           1'b?} : ic_addr[31:3] <= #1 ic_addr[31:3] ;
       {1'b1, _M_READ_IC_ADDR,   1'b?} : ic_addr[31:3] <= #1 dma_rf_rd_data[31:3] ;
       {1'b1, _M_REREAD_IC_ADDR, 1'b?} : ic_addr[31:3] <= #1 dma_rf_rd_data[31:3] ;
       {1'b1, _M_DMA_WAIT,       1'b1} : ic_addr[31:3] <= #1 ic_addr[31:3] + 29'h1;
       default                         : ic_addr[31:3] <= #1 ic_addr[31:3];
     endcase

  •  Hi artoo

     

    I would do 'report message -model -golden -verbose > model.rpt', to see what's happening to that flop on the golden side during modeling.

     

    Chrystian

  • Hi, the conformal gives those un mapped points because when it compares golden(rtl) and schematic(revised), if the pins or any Black box modules are not matched from both sides...   The reason could be : If that pin is an input or output pin at the top level :  After abstract logic of schematic, we may get a signal which is only one direction pin where as in rtl it might be bi directional. so please check the pin dimensions on both(see the schematics of both)

    Try to check by black boxing every module and try to run it once, so that we can find the source of error easily..

    Also try with not doing the abstract logic of schematic, some times tool will give some un mapped points if it is unable to map due to black boxing...

    Let me know if i am not clear..

    Regards..

     

     

     

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