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Altera_Forum's avatar
Altera_Forum
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16 years ago

SRAM 160MHz, impedance matching

Hello, In my board I have one SRAM directly connected to a FPGA Cyclone 2. I am working at 160MHz. But sometimes I have an strange behavior when reading the SRAM. I am sure is something ab...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

FVM said "Setting the FPGA outputs to minimum current strength gives a suitable impedance for many applications. A series termination can't be assigned for 3.3V LVTTL as far as I know".

What is minimum current strenght, and how to use it?

set_instance_assignment -name current_strength_new "minimum current" -to data_bus[0]????????????????????

thank you