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Altera_Forum's avatar
Altera_Forum
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17 years ago

errors in quartus when simulation

I have some code about LEDs cycle. I wrote two process, one is a time divider, the other is LED turn on according with divider. the project was complied, but quartus has some errors when staring simu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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This should work in simulation, but this will not work on hardware, because of the feedback loops created. When inc = '1' then accumulator will just keep adding until inc goes back to '0', so its trying to loop through an infinite number of times.

The simulator is trying to warn you of bad things on hardware. Id recommend making the entire design syncronous rather than asyncronous.

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you mean that we cann't synthesis asyncronous design? :(