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Altera_Forum's avatar
Altera_Forum
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9 years ago

moving average filter - unkown signal issue

The moving average filter consists of 3 components: Counter - to increment the ram address Ram - to store 4 data samples average logic - computes the average and the result is latched Th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

That solved the issue but i do not quite understand why.

at exactly 60 ns, the output of the ram goes from undefined to some value stored in it, and at that time the average_logic module is enabled, thus shouldn't it(average_logic module) consider the new value that just changed from 'U' ? since the simulation assumes ideal conditions?