Altera PowerPlay Early Power Estimator Bedienungsanleitung Seite 10

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Airflow
Custom θ
SA
or Custom θ
JA
Board thermal model
The ambient or junction temperature, heat sink, airflow, Custom θ
SA
or Custom θ
JA
, and board thermal
model parameters are optional. For more information about these parameters, refer to the Main
worksheet.
The clock frequency (f
MAX
) values imported into the PowerPlay EPE spreadsheet are the same as the f
MAX
values taken from the Quartus II software as per the design. You can manually edit the f
MAX
values and
the toggle percentage in the PowerPlay EPE spreadsheet to suit your design requirements.
To import data into the PowerPlay EPE spreadsheet, follow these steps:
1. In the PowerPlay EPE spreadsheet, Click Import CSV.
2. Browse to a PowerPlay EPE file generated from the Quartus II software and click Open. The file has a
name of <revision name>_early_pwr.csv.
3. In the confirmation window to proceed, click OK.
4. If the file is imported, click OK. Clicking OK acknowledges the import is complete. If there are any
errors during the import, an .err file is generated with details.
Related Information
Main Worksheet on page 3-1
Estimating Power Consumption After Completing the FPGA Design
If your design is complete, Altera strongly recommends using the PowerPlay Power Analyzer in the
Quartus II software. The PowerPlay Power Analyzer provides the most accurate estimate of device power
consumption. To determine power consumption, the PowerPlay Power Analyzer uses simulation, user
mode, and default toggle rate assignments, in addition to placement-and-routing information.
Related Information
PowerPlay Power Analysis chapter in volume 3 of the Quartus II Handbook
UG-01070
2015.01.20
Estimating Power Consumption After Completing the FPGA Design
2-5
Setting Up the PowerPlay Early Power Estimator
Altera Corporation
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