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Altera_Forum's avatar
Altera_Forum
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15 years ago

Selection of CPLD speed grade

Hi,

How to come to a conclusion that speed grade of the CPLD selected for a particular design running at 50 Mhz is OK??

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  • Altera_Forum's avatar
    Altera_Forum
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    You need to perform static timing analysis. In addition to that, you can also use gate level simulations.

    Quartus has two timing analysis tools: the Classical TA and the TimeQuest TA.

    TimeQuest is the preferred option, but it does not support old devices.

    If you're using older devices, such as MAX 3000/7000 CPLDs will have to stick with the Classical TA.