Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Code Coverage: covering a module within testbench

Hi all, making the code coverage with Modelsim on my VHDL testbench, the result is 100%, but only a single instruction is covered, which is the one that calls the sub-module within the testbenc...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

You have to enable code coverage for your unit/device under test (in your case "period_meter") if you want to see if these are covered. A 100% code coverage of your testbench just tells you that all instructions in your testbench are executed but not what coverage your unit under test has.

As Tricky said already you need to generate a stimulus for your unit under test or you will get 0% coverage for your component.