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Altera_Forum
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15 years ago

Rpullup value for Weak Pull-Up Resistor option ?

Hello folks,

These is an option in the Quartus II assignment editor:

"Weak Pull-Up Resistor". Is this the resistor mentioned in the Max II Device handbook in Chapter 5 table 5-4, Rpullup = 5 to 25 k Ohms ?

Thanks,

Eric

3 Replies

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

    Hi cioma,

    do you know if is it possible to apply pull-down and pull-up resistor by using schematics instead of VHDL for programming CPLD?

    thanks/Jair
  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    Sure, why not?

    Just make sure you either disable internal pull-ups or override their value with the value of external resistor.