How to create coverage configuration file

 Using the xbus example as a starting point, you can create a .ccf file with any editor.

irun -f ../filelist.f \
+OVM_TESTNAME=test_read_modify_write \
-covfile ./xbus.ccf \
-covoverwrite   \
-covworkdir ./cov_work  \
-covdesign xbus_chip    \
-covtest test_read_modify_write

--

if you are using 3 step (ncvhdl/ncvlog, ncelab, ncsim):

ncelab -covfile ./xbus.ccf \

 ===

Below is a *sample* .ccf file.  There are many dozens of options.  You will need to review the ICC User Guide to figure out your coverage requirements.  This is the *most important* step.

===Contents of sample .ccf====

# Wildcard *
# Single char match ?
# Matches module/instance and descendents ...
# b = Block
# e = expression
# t = Toggle
# f = FSM
# u = functional
# a = all

# Since other modules besides the DUT have covergroups and assertions
# you need to select multiple dut_modules to collect coverage
# In this design there are modules bind-ed into the design

# Get rid of constant signals at elab time
set_com

#Need this for test in different regression areas
set_ignore_library_name

# ------Instrumenting Block, Expression, Toggle Coverage -------------
# select_coverage [<coverage>] [-module] <list>  | [-instance] <list>
select_coverage -block -expr -fsm -toggle -module xbus_tb_top.dut...

# Branch coverage NOT enabled by default
# If branch coverage desired (branch takes more resources to run, slows sim):
set_branch_scoring

# Deselect Verification modules which were binded into the design
deselect_coverage -bet -module test_driver_bind lowest_verif_bind

# Deselect unwanted modules

deselect_coverage -bet -file mysubdut.sv

# deselect by file list works too!
deselect_coverage -betf -filelist deselected_filelist

# ----- Instrumenting for Functional (Assertions and Covergroups) ----
# Typically Functional coverage is scored for Test + DUT
select_functional

Hi,

How to deselct the coverage for the modules which are instantiated by generate block. I deselct the modules but still i can find the coverage .

thanks

shiva