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Altera_Forum
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15 years ago

Issue with lpm_divider

Hi, I am currently working on a block which calculates a configuration word to be sent to an external PLL chip based on a frequency that is sent from a higher application. I am doing it in t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Thanks for the reply.

Just realized the problem.

I wanted to divide 11258999068426240000000 by 250000000 but when i convert the former to Hex in the windows calculator to verify the output it gives me 5A00000000000000 but the actual conversion turns out to be 2625A00000000000000. Using this value, I see that my design was fucntioning well all along. It seems I was asking too much of the windows calculator...pitty it took me so long to realize though...

Thanks again

PS.

As regards the point on timing, yes I´m aware of that, but at the moment I simply put togther this circuit quickly to verify the basic functionality.