Altera Cyclone II PowerPlay Early Power Estimator - Manual (Page 12)

2–4 Altera Corporation
PowerPlay Early Power Estimator User Guide For Cyclone II FPGAs May 2006
Entering Information into the PowerPlay Early Power Estimator
Estimating Power After Completing the FPGA Design
When you complete your FPGA design in the Quartus II software, the
PowerPlay Power Analyzer provides the most accurate estimate of
device power consumption. The PowerPlay power analyzer uses user
mode and default assignments in addition to place-and-route
information to determine power consumption. The Quartus II PowerPlay
power analyzer supports power estimation for Cyclone II devices.
Table 2–3 shows the advantages and disadvantages when using the
PowerPlay Early Power Estimator spreadsheet when the FPGA design is
complete.
f
For more information about how to use the PowerPlay Power Analyzer
in the Quartus II software, refer to the PowerPlay Power Analysis chapter
in volume 3 of the Quartus II Handbook.
Entering
Information into
the PowerPlay
Early Power
Estimator You can either manually enter power information into the PowerPlay
early power estimator or load a power estimation file generated by the
Quartus II software version 5.1. You can also clear all the values currently
in the PowerPlay early power estimator.
Clearing All Values
All user entered values can be reset in the PowerPlay early power
estimator by clicking Reset.
1 In order to use the Reset EPE feature, you must enable macros
for the spreadsheet. If you have not enabled macros for the
spreadsheet you will need to reset all user-entered values
manually.
Table 2–3. Power Estimation When FPGA Design Is Complete
Advantages Disadvantages
Provides more accurate power
estimation since the design is complete ● Power estimation done later in the
FPGA design cycle
● Results will not be as accurate as
those obtained using the Quartus II
PowerPlay power analyzer