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

Max V CPLD Pull up for pins

Hi,

I am working on MAX V 5M2210ZF324C5 device for my current project.

I require some of the pins to be pulled up as this wasnt taken care in schematics.

Is this possible for the present device? Please help.

Regards,

Naga Kiran

5 Replies

  • Phil_IDEE's avatar
    Phil_IDEE
    Icon for New Contributor rankNew Contributor
    2 years ago

    Hi,

    It's an old question but I answer anyway. That could help someone. The weak pull-up column need to be enabled before to see it. Right clic in the title barre, select "customize columns...", then select weak pullup in the left list, add it in the right list, ok. Done.

  • Yingda's avatar
    Yingda
    Icon for New Contributor rankNew Contributor
    4 years ago

    Hi, Alex:

    I can't find 'Weak Pull-Up Resistor' column in the Pin Planner. Note, I'm using Quartus Prime Lite 20.1.0.

    Thanks!

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

    Yes. MAX V has programmable pull-ups. Enable/disable it under the 'Weak Pull-Up Resistor' column in the Pin Planner.

    Note:

    --- Quote Start ---

    The programmable pull-up resistor is active during power-up, ISP, and if the device is unprogrammed.

    --- Quote End ---

    Cheers,

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

    Do a search for "Programmable Pull-Up Resistor" in "MAX V Device Handbook".