My Driver, Monitor & Scoreboard run at 0 Semulation time... Whats the problam

UVM
1

Code Link:-

UVM_INFO testbench.sv(481) @ 0: uvm_test_top.env.sco [occ scoreboard] Inside Build Phase!
UVM_INFO testbench.sv(247) @ 0: uvm_test_top.env.agnt.dri [occ_driver] Inside Constructor
UVM_INFO testbench.sv(328) @ 0: uvm_test_top.env.agnt.mon [occ_monitor] Inside Constructor
UVM_INFO testbench.sv(253) @ 0: uvm_test_top.env.agnt.dri [occ_driver] Inside Build Phase
UVM_INFO testbench.sv(336) @ 0: uvm_test_top.env.agnt.mon [occ_monitor] Inside Build Phase
UVM_INFO testbench.sv(486) @ 0: uvm_test_top.env.sco [occ scoreboard] Inside Build Phase!
UVM_INFO testbench.sv(264) @ 0: uvm_test_top.env.agnt.dri [occ_driver] inside Connect Phase
UVM_INFO testbench.sv(347) @ 0: uvm_test_top.env.agnt.mon [occ_monitor] inside Connect Phase
UVM_INFO /xcelium23.09/tools/methodology/UVM/CDNS-1.2/sv/src/base/uvm_root.svh(605) @ 0: reporter [UVMTOP] UVM testbench topology:

Name Type Size Value

uvm_test_top occ_test - @1850
env occ_env - @1918
agnt occ_agent - @1952
dri occ_driver - @1893
rsp_port uvm_analysis_port - @2125
seq_item_port uvm_seq_item_pull_port - @2073
mon occ_monitor - @2022
monitor_port uvm_analysis_port - @2216
seqr occ_sequencer - @2247
rsp_export uvm_analysis_export - @2307
seq_item_export uvm_seq_item_pull_imp - @2867
arbitration_queue array 0 -
lock_queue array 0 -
num_last_reqs integral 32 'd1
num_last_rsps integral 32 'd1
sco occ_scoreboard - @1984
scoreboard_port uvm_analysis_imp - @2959

UVM_INFO testbench.sv(497) @ 0: uvm_test_top.env.sco [occ_scoreboard] Inside Run Phase
UVM_INFO testbench.sv(354) @ 0: uvm_test_top.env.agnt.mon [occ_monitor] Inside Run Phase
UVM_INFO testbench.sv(271) @ 0: uvm_test_top.env.agnt.dri [occ_driver] Inside Run Phase
UVM_INFO /xcelium23.09/tools/methodology/UVM/CDNS-1.2/sv/src/base/uvm_objection.svh(1271) @ 2495: reporter [TEST_DONE] ‘run’ phase is ready to proceed to the ‘extract’ phase
UVM_INFO /xcelium23.09/tools/methodology/UVM/CDNS-1.2/sv/src/base/uvm_report_server.svh(847) @ 2495: reporter [UVM/REPORT/SERVER]
— UVM Report Summary —

** Report counts by severity
UVM_INFO : 15
UVM_WARNING : 0
UVM_ERROR : 0
UVM_FATAL : 0
** Report counts by id
[RNTST] 1
[TEST_DONE] 1
[UVM/RELNOTES] 1
[UVMTOP] 1
[occ scoreboard] 2
[occ_driver] 4
[occ_monitor] 4
[occ_scoreboard] 1

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2

Your simulation does not stop at time 0. It is time 2495. Your problem is the svan_en is 'x but not '0 as you checking in the scoreboard.
See here

1 Like
3

Thank you @chr_sue i think i understand whats the problam in my code … one more question is i want to randomise my scan_en signal is high for 100ns and then low for 100ns and then continue this toggaing, how to write this constraint…

pls see line no. 42 in top module

4

You should not rely on waht you are setting but what you get. See the simulation here