Forum Discussion

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

ModelSim undefined initial value

Hello, I am trying to do some simple simulation using modelsim-altera and am seeing undefined value for output "result" and it stays like that until 10ns or so into the simulation. Here is the examp...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Your starting the simulation with a running clock. The counter value must be expected to change before you see the initial value at the outputs. Actually, reset is in effect during this period, so the temporary output state is more like a meaningless artefact, I think.