Altera PowerPlay Early Power Estimator for Altera CPLDs User Manual
Page 9
Chapter 1: PowerPlay Early Power Estimator Overview
1–5
Setting Up the PowerPlay EPE
December 2010
Altera Corporation
PowerPlay Early Power Estimator for Altera CPLDs User Guide
To import the Quartus II file into the PowerPlay EPE spreadsheet, perform the
following steps:
1. In the PowerPlay EPE spreadsheet, click Import QII File.
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, 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.
1
You must import the PowerPlay EPE file into the PowerPlay EPE
spreadsheet before modifying any information in the PowerPlay EPE
spreadsheet. Also, you must verify all your information after importing a
file.
To import the EPE file into the PowerPlay EPE spreadsheet, perform the following
steps:
1. In the PowerPlay EPE spreadsheet, click Import EPE.
2. Browse to a PowerPlay EPE spreadsheet file (.xls) and click Open.
3. In the confirmation window, click OK.
Importing the Quartus II PowerPlay EPE file or the PowerPlay EPE spreadsheet from
the Quartus II software populates all input values on the Main worksheet as
per specified in the Quartus II software. These parameters include:
■
Device
■
Package
■
Temperature grade
■
Power characteristics
■
V
CCINT
supply voltage
■
Ambient temperature, T
A
(°
C
)
■
Airflow
f
For more information about these parameters, refer to
.
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.