Article ID: 000078589 Content Type: Error Messages Last Reviewed: 09/22/2014

Error: Fractional PLL parameter 'pll_cp_current' is set to an illegal value

Environment

    Quartus® II Subscription Edition
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Description Due to a problem in Quartus® II Software version 13.0 and earlier, you may see this error message when you set the partition containing your PLL to post-fit.
Resolution

To work around the problem, find the PLL Quartus II IP File (.qip) file and expand the PLL instance names fully.

For example:

Change the following statements in .qip from:

 set_instance_assignment -name PLL_COMPENSATION_MODE NORMAL -to "*cpui_serial_pll_0002*|altera_pll:altera_pll_i*|*"

set_instance_assignment -name PLL_AUTO_RESET OFF -to "*cpui_serial_pll_0002*|altera_pll:altera_pll_i*|*"

set_instance_assignment -name PLL_BANDWIDTH_PRESET HIGH -to "*cpui_serial_pll_0002*|altera_pll:altera_pll_i*|*"

to:

set_instance_assignment -name PLL_COMPENSATION_MODE NORMAL -to "cpui_top:cpui_top|cpui_serial:sbus|cpui_serial_pll:rx_pll|cpui_serial_pll_0002:cpui_serial_pll_inst|altera_pll:altera_pll_i"

 set_instance_assignment -name PLL_AUTO_RESET OFF -to "cpui_top:cpui_top|cpui_serial:sbus|cpui_serial_pll:rx_pll|cpui_serial_pll_0002:cpui_serial_pll_inst|altera_pll:altera_pll_i"

set_instance_assignment -name PLL_BANDWIDTH_PRESET HIGH -to "cpui_top:cpui_top|cpui_serial:sbus|cpui_serial_pll:rx_pll|cpui_serial_pll_0002:cpui_serial_pll_inst|altera_pll:altera_pll_i"

This problem is fixed beginning with Quartus II software version 13.1.

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