Altera Cyclone II PowerPlay Early Power Estimator - Manual (Page 11)

Altera Corporation 2–3
May 2006 PowerPlay Early Power Estimator User Guide For Cyclone II FPGAs
Setting Up the Cyclone II PowerPlay Early Power Estimator
information into the PowerPlay Early Power Estimator spreadsheet, you
can edit the PowerPlay Early Power Estimator spreadsheet to reflect the
device resource estimates for the final design.
f
For more information on generating the power estimation file in the
Quartus II software, refer to the PowerPlay Power Analysis chapter in
volume 3 of the Quartus II Handbook.
Table 2–2 shows the advantages and disadvantages when using the
PowerPlay Early Power Estimator spreadsheet for an FPGA design that
is partially complete.
Use the following steps to estimate power usage with the PowerPlay
Early Power Estimator spreadsheet if your FPGA design is partially
complete.
1. Compile the partial FPGA design in the Quartus II software.
2. Generate the PowerPlay Early Power Estimator file (<revision
name>_early_pwr.csv) in the Quartus II software by clicking
Generate PowerPlay Early Power Estimator File
on the Project
menu.
3. Download the PowerPlay Early Power Estimator spreadsheet from
the Altera website.
4. Import the PowerPlay Early Power Estimator file into the
PowerPlay Early Power Estimator spreadsheet to automatically
populate the entries.
5. After importing the file to populate the PowerPlay Early Power
Estimator spreadsheet, you can manually edit the cells to reflect
final device resource estimates.
Table 2–2. Power Estimation When FPGA Design Is Partially Complete
Advantages Disadvantages
● Power estimation can be done early
in the FPGA design cycle
● Provides the flexibility to
automatically fill in the PowerPlay
Early Power Estimator spreadsheet
based on Quartus II software
compilation results
Accuracy is dependent on user input
and estimate of the final design device
resources