Altera HardCopy II Clock Uncertainty Calculator - Manual (Page 18)

2–4 Altera Corporation
HardCopy II Clock Uncertainty Calculator User Guide
Running the Clock Uncertainty Calculator Flow
Running get_pll.tcl on the Quartus II Tcl Console
Figure 2–2 shows the PLL settings summary extraction using the
Quartus II software.
Figure 2–2. Example for Getting PLL Settings on the Quartus II Tcl Console
Running get_pll.tcl on the Command Line or UNIX
Figure 2–3 shows the PLL settings summary extraction using the
command line or UNIX.
Figure 2–3. Example for Acquiring PLL Settings on UNIX Prompt
After you complete the PLL extraction, you will have generated two files,
pll_settings_summary.txt
and PLL_Names.txt, in the working directory.
You should also check the log file to confirm that the PLL extraction job
has completed without any errors.
The pll_settings_summary.txt file contains PLL indices, PLL names,
feedback counter (M) values, charge pump current, loop filter resistances,
voltage controlled oscillator (V
CO
) frequency, and phase frequency
detector frequency, that are required for running the clock uncertainty
calculators. You will need pll_settings_summary.txt to continue the
clock uncertainty calculator spreadsheet.