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Altera_Forum
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18 years ago

Large Timing discrepancy between 6.0 and 7.1

Hi, I find a big discrepancy in the maximum frequency when using the default settings for Quartus II 6.0 and 7.1 for one of my cores. Using Quartus II 6.0 I get a maximum frequency of 162....
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Hi,

Nevermind, I actually was looking at the frequency of the wrong clock. There are three clocks in the design.

The second best speed with 7.1 used the following resources:

3491 LEs, 3072 bits of memory in 4 M4Ks running at 109.09 MHz

Unoptimized 6.0 gives:

3807 LEs, 2560 bits of memory in 3 M4Ks running at 91.27 MHz.

Thanks,

RAUL