ERROR:PhysDesignRules:2449 - The computed value for the VCO operating frequency
of PLL_ADV instance
cpu_sys_i/clock_generator_0/clock_generator_0/PLL0_INST/Using_PLL_ADV.PLL_ADV
_inst is calculated to be 1300.000000 MHz. This falls above the operating
range of the PLL VCO frequency for this device of 400.000000 - 1080.000000
MHz. Please adjust either the input frequency CLKINx_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.
ERROR:Pack:1642 - Errors in physical DRC.
ISE调用MCB_DDR3模块综合产生ERROR,原因:时钟频率配置错误,频率超出器件工作频率;修改方法:
使用xilinx IP核生成器生成MIG IP核,得到顶层文件,根据器件重新配置如下参数:
时钟分频系数原为:

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