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Altera_Forum's avatar
Altera_Forum
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10 years ago

Securely start a State-Machine with pulses or edges

Hi there, this problem occures in my work from time to time: I want to start a State-Machine (Transition from Idle-State S000 to State S010) either with a single one-clock-pulse or on the edg...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Modelsim does not test things for you. Modelsim is a tool that runs your testbench. If your test cases are not catching this bug then I can only assume that your test cases are not good enough.

Try and capture as much info as you can in the run up to the problem, then try and re-create the bug in modelsim. I bet there is some combination of events that you are not covering in the testbench that are occuring as some corner case in the real system.