Visible to Intel only — GUID: reference_TCL_tcl_pkg_eco_ver_1_0_cmd_adjust_pll_refclk
Ixiasoft
Visible to Intel only — GUID: reference_TCL_tcl_pkg_eco_ver_1_0_cmd_adjust_pll_refclk
Ixiasoft
3.1.7.1. adjust_pll_refclk (::quartus::eco)
The following table displays information for the adjust_pll_refclk Tcl command:
Tcl Package and Version | Belongs to ::quartus::eco |
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Syntax | adjust_pll_refclk [-h | -help] [-long_help] -refclk <refclk_freq> -to <iopll_name> | ||
Arguments | -h | -help | Short help | |
-long_help | Long help with examples and possible return values | ||
-refclk <refclk_freq> | New refclk frequency value in MHz | ||
-to <iopll_name> | Instance name of upstream IOPLL to be adjusted | ||
Description | The adjust_pll_refclk command can change IOPLL frequencies by modifying the input reference clock frequency. Assumptions and Limitations: - The original refclk/outclk ratios will be maintained - None of the IOPLLs being reconfigured can generate IP clocks (the frequencies of the LVDS, PhyLite and EMIF clocks cannot change) - Cascaded IOPLLs must be connected directly (no clock gates in between them) - IOPLLs cannot be in 'nondedicated' compensation modes - For all IOPLL outclks duty cycle = 50 and phase shift = 0 |
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Example Usage | |
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Return Value | Code Name | Code | String Return |
TCL_OK | 0 | INFO: Operation successful |