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nilsbuc's avatar
nilsbuc
Icon for New Contributor rankNew Contributor
3 years ago
Solved

DE10-Lite GPIO

Hello,

Im currently trying to figure out the DE10-Lite board, cause I'm using it for a project im working on. I need to connect an external clock source to the board, but this clock source has a voltage level of 5V. My question is can I connect the clock source to the GPIO pins or are all the pins only compatible with 3,3 LVTTL sources.

If this doesn't work ut you have other solutions, I would be happy to hear them, cause I'm new to this board.

kind regards

Nils Buchholz

Board Debug
Configuration
Fpga Devkit
  • AqidAyman_Altera's avatar
    AqidAyman_Altera
    3 years ago

    Hello,

    ​

    Since the answer has been provided, do you have any more concerns on this?

    Please let me know if you have one as I will be happy to support more.


    Regards,

    Aqid


2 Replies

  • AqidAyman_Altera's avatar
    AqidAyman_Altera
    Icon for Regular Contributor rankRegular Contributor
    3 years ago

    Hi Nils,


    You can connect the clock source to the dedicated clock input pin. However, if you need to stick with 5v input voltage, you will need level shifter or else, you can change the clock source with the compatible input voltage with the I/O standard spec based on the respective I/O bank. I assume the pin that you want to connect is using 3.3 LVTT I/O standard.


    Regards,

    Aqid


  • AqidAyman_Altera's avatar
    AqidAyman_Altera
    Icon for Regular Contributor rankRegular Contributor
    3 years ago

    Hello,

    ​

    Since the answer has been provided, do you have any more concerns on this?

    Please let me know if you have one as I will be happy to support more.


    Regards,

    Aqid