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REics's avatar
REics
Icon for New Contributor rankNew Contributor
3 years ago

Device Migration - does it work with some power pins not connected?

I have a design which was originally for an EP4CE40F23, and now I want to migrate to EP4CE55F23. I can compile the design correctly (i.e. I am not having used any I/O pins which are not available in the larger device).

However, my existing boards have these pins unconnected and not connected to VCC/VCCINT/GND etc. Does the larger device still works on the board (i.e. because its power pins are internally connected) or do I need to redesign the board to have the supply on ALL these pins?

6 Replies

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

    Hello,

    I believe you still have to connect to VCC/VCCINT/GND etc.

    Thank you.

  • Seadog's avatar
    Seadog
    Icon for Occasional Contributor rankOccasional Contributor
    3 years ago

    I would never leave power or ground pins unconnected. You will have more switching noise on the chip, which may cause malfunctions which you will have to explain to your boss.

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

      We do not receive any response from you to the previous question/reply/answer that I have provided. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.