AR# 39516: 12.4 ChipScope Pro IBERT Spartan-6 GTP - When generating my core I see "ERROR:PhysDesignRules:1859 "
AR# 39516
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12.4 ChipScope Pro IBERT Spartan-6 GTP - コアを生成すると「ERROR:PhysDesignRules:1859」というエラー メッセージが表示される
説明
コアを生成すると、次のようなエラー メッセージが表示されます。
ERROR:PhysDesignRules:1859 - The computed value for the VCO operating frequency of PLL_ADV instance
U0/U_IBERT_CORE/U_GTCP_X0_Y1/U_USR_CLK/I_PH_DATA_WIDTH_GT10.U_TXUSRCLK0 _PLL/pll_base_inst/PLL_ADV is calculated to be 1067.500008 MHz.
This falls above the operating range of the PLL VCO frequency for this device of 400.000000 - 1050.000000 MHz. Please adjust either the input frequency CLKIN_PERIOD, multiplication factor CLKFBOUT_MULT or the division factor DIVCLK_DIVIDE, in order to achieve a VCO frequency within the rated operating range for this device.