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aurec2's avatar
aurec2
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5 years ago

CycloneV MPU clock frequency

Hello, I am using the CycloneV 5CSXFC6C6U23I7 SoC. According to the specifications cyclone V, SX models should allow for a core frequency of up to 925 MHz. However, when I try to change the Hard ...
EBERLAZARE_I_Intel's avatar
EBERLAZARE_I_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,

Have you changed the device assignment correctly in Quartus settings?

I didn't get the Quartus version that you are using, can you share the version that you are testing on?

  • aurec2's avatar
    aurec2
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    5 years ago

    Hi.

    thanks for your answer. The device settings are correct, both in the platform designer and in quartus project. Normally I am using Quartus Prime 17.1.

    The mentioned problem occurs in using Quartus Prime 17.1 and in Quartus Prime 19.1.

    Best

    Andre

    • EBERLAZARE_I_Intel's avatar
      EBERLAZARE_I_Intel
      Icon for Regular Contributor rankRegular Contributor
      5 years ago

      Hi,

      I recommend that you check the "MPU clock frequency" at the default value of 800 MHz. At boot-up, please re-check the clock frequency again.

      • aurec2's avatar
        aurec2
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        5 years ago

        Hi,

        thanks for your answer. This is what I did, i.e. currently the device runs at 800 MHz. On booting up the SPL confirms that the MPU frequency is set at 800 MHz.

        As you are certainly aware - the specified device allows for a MPU frequency of 925 MHz.

        Are there any specific steps, other than choosing the correct device in the Platform designer?

        As for now I still can only choose 800 MHz as a MPU frequency in the Platform designer.

        Answers would be appreciated.

        Many thanks ,Andreas.