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Altera_Forum's avatar
Altera_Forum
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16 years ago

Drive strength settings

Hello: Just starting with FPGA design When the FPGA (cyclone II) drives pins into a device with a specific loading value (i.e 10pf) , is there a calculation or rule thumb to estimate wha...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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You can extract the exact output characteristic for each current strength setting from the IBIS files and calculate the respective dynamical response or use a tool, that does the calculation.

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Would you mind elaborating in what tools and a little more details on how you do this exactly?

thanks again