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Altera_Forum's avatar
Altera_Forum
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7 years ago

Setting VCCPD in the Pin Planner or in any other way

Hello,

My problem is that the standard setting of VCCPD for my project is 2.5V and I need to set it for certain banks to 3.3V. I have looked through the pin planner, and the device settings and I haven't found a single setting to change it.

I need to change it, as I need 3.3V LVCMOS output, which requires 3.3V VCCIO, which in turn requires setting the VCCPD for those banks to 3.3V.

I know this is a blatant question, but I really haven't found how to do it anywhere.

Thank you and have a nice day,

Tibor

1 Reply

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

    Hi,

    No, you cannot manually set the VCCPD voltage supply of a particular bank in the Quartus® II design software, since the required VCCPD voltage of a bank is dependent upon it's respective VCCIO. The required VCCPD voltage is derived by the Quartus II design software from the respective VCCIO setting.

    To make a voltage assignment to the VCCIO supply of a bank, you can use the following assignment:

    set_global_assignment -name IOBANK_VCCIO <voltage> -section_id <bank>

    Where <voltage> is the required voltage (e.g. 3.3V) and <bank> is the bank number (e.g. 3C).

    https://www.altera.com/support/support-resources/knowledge-base/solutions/rd05052011_690.html

    Best Regards,

    Anand Raj Shankar

    (This message was posted on behalf of Intel Corporation)