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Altera_Forum's avatar
Altera_Forum
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14 years ago

restricted Fmax

I should have some IO speed, something like 500Mhz, not toggling but pulses as short as 2ns. The logic is a few counters that could also be resynchronized. Wit a Cyclone3 I reach something like 250Mh...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Well i think the results you are getting are aligned to what it should be, although i have never worked with arria gx or cyclone so i cant comment on the 1Gb/s you are saying for the outputs but i really doubt that arria gx or cyclone can give such a baud rate.

Anyways i am also attaching a snap shot from arria2 gx manual.

Might give you a better view of the max frequency operations.

Nevertheless even if your lc count is only 50 even then i think the results are reasonable .

If you provide some insight on the resource counts and your sdc some experts here might help you.

GOOD LUCK