Altera Cyclone II PowerPlay Early Power Estimator Manual do Utilizador descarregar pdf (Página 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

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