綁定接口聲明時UVM配置數據庫錯誤

我的測試平臺中有4個DAI接口實例。我一直在用我創建的環境運行一些模擬，並且沒有發生錯誤。但是，當我嘗試將我的斷言綁定到接口實例時，出現與在配置數據庫中設置接口有關的錯誤。如下所示綁定接口聲明時UVM配置數據庫錯誤

//------------------------------------------------------------------------------------------------------ 
//Create instances of the interface for inputs and outputs - note these instances are the same, but they 
//are hooked up differently in the env level    
//------------------------------------------------------------------------------------------------------ 
//Parallel Inputs - To be used for the input drivers, agents and monitors 
dai_if #(.P_WD_DATA  (P_WD_DATA  ), 
      .P_CH_NUM_MAX (P_CH_NUM_MAX ), 
      .P_WD_OFFSET  (P_WD_OFFSET ), 
      .P_WD_CH_NUM  (P_WD_CH_NUM ), 
      .P_WD_FMT  (P_WD_FMT  ), 
      .P_WD_WL   (P_WD_WL  ) 
      ) 
      dai_par_ivif(); 

//Serial Inputs - To be used for the input drivers, agents and monitors 
dai_if #(.P_WD_DATA  (P_WD_DATA  ), 
      .P_CH_NUM_MAX (P_CH_NUM_MAX ), 
      .P_WD_OFFSET  (P_WD_OFFSET ), 
      .P_WD_CH_NUM  (P_WD_CH_NUM ), 
      .P_WD_FMT  (P_WD_FMT  ), 
      .P_WD_WL   (P_WD_WL  ) 
      ) 
      dai_ser_ivif(); 

//Parallel Outputs - To be used for the output monitors and agents 
dai_if #(.P_WD_DATA  (P_WD_DATA  ), 
      .P_CH_NUM_MAX (P_CH_NUM_MAX ), 
      .P_WD_OFFSET  (P_WD_OFFSET ), 
      .P_WD_CH_NUM  (P_WD_CH_NUM ), 
      .P_WD_FMT  (P_WD_FMT  ), 
      .P_WD_WL   (P_WD_WL  ) 
      ) 
      dai_par_ovif(); 

//Serial Outputs - To be used for the output monitors and agents 
dai_if #(.P_WD_DATA  (P_WD_DATA  ), 
      .P_CH_NUM_MAX (P_CH_NUM_MAX ), 
      .P_WD_OFFSET  (P_WD_OFFSET ), 
      .P_WD_CH_NUM  (P_WD_CH_NUM ), 
      .P_WD_FMT  (P_WD_FMT  ), 
      .P_WD_WL   (P_WD_WL  ) 
      ) 
      dai_ser_ovif(); 



//------------------------------------------------------------------------------------------------------ 
//Set interfaces in the database with specific hierachical paths. 
//------------------------------------------------------------------------------------------------------ 
initial begin 

    //------------------------------------------------------------------------------------------------------ 
    //Set these unrequired signals to their default values. 
    //------------------------------------------------------------------------------------------------------ 
    dft_latch_clk  = 1'b1; 
    dft_latch_rst_an = 1'b1; 
    scan_mode   = 1'b0; 
    scan_enable   = 1'b0; 

    uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_ag_in[0]*", "dai_vif", dai_ser_ivif); 
    uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_ag_in[1]*", "dai_vif", dai_par_ivif); 
    uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_ag_out[0]*", "dai_vif", dai_par_ovif); 
    uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_ag_out[1]*", "dai_vif", dai_ser_ovif); 

    //Scoreboard interface uses the one which drives the clock 
    uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_sb[0]*", "dai_vif", dai_ser_ivif); 
    uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_sb[1]*", "dai_vif", dai_ser_ivif); 

    //Print top level topology 
    uvm_top.print(); 

    //Run specific test using command line switch addition (+UVM_TESTNAME=test_name) 
    run_test(); 

end

我結合頂層模塊中endmodule現有接口的斷言：下面示出了代碼，我的接口添加到配置數據庫

bind dai_if :dai_ser_ivif  dai_ser_in_checkers #(.P_WD_DATA  (P_WD_DATA  ),  
                 .P_CH_NUM_MAX (P_CH_NUM_MAX ), 
                 .P_WD_OFFSET  (P_WD_OFFSET ), 
                 .P_WD_CH_NUM  (P_WD_CH_NUM ), 
                 .P_WD_FMT  (P_WD_FMT  ), 
                 .P_WD_WL   (P_WD_WL  )) ast_dai_ser_in_checkers (bclk, wclk, rst_an, wclk_period, bclk_period, 
                                serial_data, sdatout_oe, frame_sync, active_clk, 
                                active_dai, tdm_en, bclk_pol, wclk_pol, dai_en, 
                                tdm_ch_en, ch_num, format, offset, wl, parallel_data); 

bind dai_if :dai_ser_ovif  dai_ser_out_checkers #(.P_WD_DATA  (P_WD_DATA  ),  
                 .P_CH_NUM_MAX (P_CH_NUM_MAX ), 
                 .P_WD_OFFSET  (P_WD_OFFSET ), 
                 .P_WD_CH_NUM  (P_WD_CH_NUM ), 
                 .P_WD_FMT  (P_WD_FMT  ), 
                 .P_WD_WL   (P_WD_WL  )) ast_dai_ser_out_checkers (bclk, wclk, rst_an, wclk_period, bclk_period, 
                                serial_data, sdatout_oe, frame_sync, active_clk, 
                                active_dai, tdm_en, bclk_pol, wclk_pol, dai_en, 
                                tdm_ch_en, ch_num, format, offset, wl, parallel_data); 

bind dai_if :dai_par_ivif  dai_par_in_checkers #(.P_WD_DATA  (P_WD_DATA  ),  
                 .P_CH_NUM_MAX (P_CH_NUM_MAX ), 
                 .P_WD_OFFSET  (P_WD_OFFSET ), 
                 .P_WD_CH_NUM  (P_WD_CH_NUM ), 
                 .P_WD_FMT  (P_WD_FMT  ), 
                 .P_WD_WL   (P_WD_WL  )) ast_dai_par_in_checkers (bclk, wclk, rst_an, wclk_period, bclk_period, 
                                serial_data, sdatout_oe, frame_sync, active_clk, 
                                active_dai, tdm_en, bclk_pol, wclk_pol, dai_en, 
                                tdm_ch_en, ch_num, format, offset, wl, parallel_data); 

bind dai_if :dai_par_ovif  dai_par_out_checkers #(.P_WD_DATA  (P_WD_DATA  ),  
                 .P_CH_NUM_MAX (P_CH_NUM_MAX ), 
                 .P_WD_OFFSET  (P_WD_OFFSET ), 
                 .P_WD_CH_NUM  (P_WD_CH_NUM ), 
                 .P_WD_FMT  (P_WD_FMT  ), 
                 .P_WD_WL   (P_WD_WL  )) ast_dai_par_out_checkers (bclk, wclk, rst_an, wclk_period, bclk_period, 
                                serial_data, sdatout_oe, frame_sync, active_clk, 
                                active_dai, tdm_en, bclk_pol, wclk_pol, dai_en, 
                                tdm_ch_en, ch_num, format, offset, wl, parallel_data);

我從此收到的錯誤指向我在配置數據庫中設置接口的行，如下所示：

uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_ag_in[0]*", "dai_vif", dai_ser_ivif); 
                             | 
ncelab: *E,TYCMPAT (/.../dai_top.sv,178|122): formal and actual do not have assignment compatible data types (expecting datatype compatible with 'virtual interface dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2))' but found an incompatible 'dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2)) instance' instead). 
     uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_ag_in[1]*", "dai_vif", dai_par_ivif); 
                               | 
ncelab: *E,TYCMPAT (/.../dai_top.sv,179|122): formal and actual do not have assignment compatible data types (expecting datatype compatible with 'virtual interface dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2))' but found an incompatible 'dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2)) instance' instead). 
     uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_ag_out[0]*", "dai_vif", dai_par_ovif); 
                               | 
ncelab: *E,TYCMPAT (/.../dai_top.sv,180|122): formal and actual do not have assignment compatible data types (expecting datatype compatible with 'virtual interface dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2))' but found an incompatible 'dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2)) instance' instead). 
     uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_sb[0]*", "dai_vif", dai_ser_ivif); 
                              | 
ncelab: *E,TYCMPAT (/.../dai_top.sv,184|118): formal and actual do not have assignment compatible data types (expecting datatype compatible with 'virtual interface dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2))' but found an incompatible 'dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2)) instance' instead). 
     uvm_config_db#(virtual dai_if)::set(uvm_root::get(), "uvm_test_top.dai_env.dai_sb[1]*", "dai_vif", dai_ser_ivif); 
                              |               
ncelab: *E,TYCMPAT (/.../dai_top.sv,185|118): formal and actual do not have assignment compatible data types (expecting datatype compatible with 'virtual interface dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2))' but found an incompatible 'dai_if#(.P_WD_DATA(24),.P_WD_OFFSET(11),.P_CH_NUM_MAX(8),.P_WD_CH_NUM(3),.P_WD_FMT(2),.P_WD_WL(2)) instance' instead).

我有一些格式錯誤信息的問題。指針'|'應該位於每個接口實例的下面，例如dai_ser_ivif。如果我刪除綁定語句，模擬運行良好，沒有類似的錯誤到上面。所以我認爲這個問題與綁定過程有關，但是，這些錯誤似乎是在抱怨我在配置數據庫中使用接口（而不是虛擬接口）設置虛擬接口？

任何建議或指針都非常感謝。

謝謝。

來源

2015-10-13 Robert Owen

聽起來像是一個工具問題。 –

獲取更多信息：'nchelp ncelab TYCMPAT' – toolic

'nchelp ncelab TYCMPAT'除了告訴我錯誤與數據類型不匹配有關外，並沒有提供額外的信息。另外，我運行了一些額外的測試，並注意到如果我爲代碼編譯的所有四個接口綁定相同的接口（例如dai_ser_in_checkers）和相同的實例名稱（例如ast_dai_ser_in_checkers）（例如ast_dai_ser_in_checkers）。但是，每當我更改這些值時，我都會得到相同的錯誤。任何想法爲什麼這可能是？ –

配置數據庫設置需要類型兼容性，當您使用參數化接口時，應該在設置配置數據庫中的虛擬接口時使用相同類型。例如，

//Serial Inputs - To be used for the input drivers, agents and monitors 
dai_if #(.P_WD_DATA (P_WD_DATA)) dai_ser_ivif(); 

uvm_config_db#(virtual dai_if#(P_WD_DATA))::set(uvm_root::get(), "uvm_test_top.dai_env.dai_ag_in[0]*", "dai_vif", dai_ser_ivif);

來源

2016-08-04 07:45:46 MayurKubavat

綁定接口聲明時UVM配置數據庫錯誤

回答

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