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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Changing drive strength

We need to change the drive strength on our Cyclone FPGA.

I want to know how to do it.

Is it a change in the code or is it as simple as selecting the desried drive strength from a drop down menu?

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    In the QSF :

    set_instance_assignment -name CURRENT_STRENGTH_NEW "MAXIMUM CURRENT" -to arria_dq

    Or, in the assignment editor, choose the "Current Strength" assignment, then it has a drop down box for different values you may assign, although depending on your voltage level they may not all be valid assignments.