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MAC_Yossi's avatar
MAC_Yossi
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2 months ago

PLL number of Power and Thermal Calculator

How is the number of PLL of PTC tool displayed? There is an error, but since it is compiled and power consumption is calculated, can I assume that there is no problem?   Please see the attache...
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MAC_Yossi's avatar
MAC_Yossi
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2 months ago

Hello Aquid

Thank you for your support.

The attached .qar file is that you can see my concern.

If you have further more need, please let me know.

 

Best Regards,

MAC_Yossi

MAC_Yossi's avatar
MAC_Yossi
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2 months ago

Hello Aquid

When I checked with version 25.3, the error disappeared as shown attached.
From this, can I ignore the error displayed in PTC of version 25.1 and use it?
At this moment, it is necessary to develop with v25.1 to match the version of IP made by 3rd Party.

 

  • AqidAyman_Altera's avatar
    AqidAyman_Altera
    Icon for Regular Contributor rankRegular Contributor
    2 months ago

    Hello MAC_Yossi,

     

    I can reproduce the same findings from my side using your .qar.

    Let me investigate this further, and thank you for bringing this to our attention.

     

    As for the result you obtained in the 25.3 version, since the error has disappeared, we can assume it shows no problem, maybe just wrong reporting in the previous version. I am checking on this.

     

    Can you confirm you are getting the same power calculated in both 25.1 and 25.3 versions?

     

    Regards,
    Aqid 

    • MAC_Yossi's avatar
      MAC_Yossi
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      2 months ago

      Hello Aqid

      Can you confirm you are getting the same power calculated in both 25.1 and 25.3 versions?

      As the result, it is not same power 25.1 and 25.3 because the difference is 0.002 W in Dynamic Power Dissipation as shown below.

       

      v25.1) Compilation Report > Power Analyzer > Summary

      Total On-chip Power Dissipation = 0.747 W

      v25.3) Compilation Report > Power Analyzer > Summary

      Total On-chip Power Dissipation = 0.749 W

       

      Also on PTC, there is little bit different power between both version as shown below. The setting is default.

      PLL IP was updated when changing from v25.1 to v25.3.

      v25.1) Total Power = 0.732

      v25.3) Total Power = 0.730

       

      Best Regards,

      MAC_Yossi

      • AqidAyman_Altera's avatar
        AqidAyman_Altera
        Icon for Regular Contributor rankRegular Contributor
        2 months ago

        Hello MAC_Yossi,

         

        I have checked internally and found out that this is an expected issue reported in PLL utilization reporting in 25.1 version.

        SInce the error message does not affect the power reported in this scenario, then it can be ignored.

         

        And yes, you can assume power reported in 25.3 is correct.

         

        Regards,
        Aqid