Retrieve child coverage results from parent model
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I am using the coverage toolbox, MATLAB 2018a, these are my settings to get the coverage from a model:
load_system( 'my_model' );
set_param( 'my_model', ...
'CovEnable' , 'on', ...
'CovMetricSettings', 'dcmetr', ...
'RecordCoverage' , 'on' );
I am turning on signal range and table coverage results.
I run and I get the coverage, then when I try to see the signal ranges I use this:
[minVal, maxVal] = sigrangeinfo(cumCovData, 'my_model/subsystem', 1 )
And I can see the max-min values for a specific subsystem, my problem is that I can only see the max-min values for the subsystems at the very bottom level of the model. Now, if I want to see this max-min values in the parent model, e.g.:
[minVal, maxVal] = sigrangeinfo(cumCovData, 'my_model', 1 )
I get this:
minVal =
[]
maxVal =
[]
So, it looks like MATLAB/SIMULINK cannot assign the low level range outputs to the parent model.
So my question is:
Can I assign max-min ranges from coverage data to the parent model? What's the setting for this operation?
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回答(1 个)
Pat Canny
2020-5-29
Hi Luis,
Thanks for your question.
You are correct in that the signal range coverage is not collected for model outputs. The object needs to have a valid handle, and model outputs don't qualify. This is why you are seeing the discrepancy between the subsystem and the model. This is a good bit of feedback for the team.
One suggestion is to try creating a test harness (which would use a model reference hierarchy) and collecting the range coverage on the harness model. This is a workaround solution, but it would treat the harness as a block and allow you to collect range coverage for the "block" outputs. I suggest using slvnvmakeharness to create a harness.
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