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Altera_Forum's avatar
Altera_Forum
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13 years ago

ARM Cortex-A9 power consumption

Hi All!

I'm in the beginning phases of designing a board around the Cyclone V HPS and I can't find the power requirements for the on-chip A9. I've used the early power estimator for the FPGA side.

Any answers or pointers would be greatly appreciated.

Thanks!

2 Replies

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

    You can use the power play tool if you compile for a Cyclone V HPS. I don't think the numbers are very accurate though.

    You can twiddle the switching rate of the processor in power play and it doesn't look like the dynamic power scales correctly.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    13 years ago

    --- Quote Start ---

    You can use the power play tool if you compile for a Cyclone V HPS. I don't think the numbers are very accurate though.

    You can twiddle the switching rate of the processor in power play and it doesn't look like the dynamic power scales correctly.

    --- Quote End ---

    By that you mean the early power estimator, right? There are no fields for the processor in that tool as far as I can see (only LUT %, IO, XCVR, etc). Are there in the version that you use?