MMCM原语包含MMCME3_BASE和MMCME3_ADV,在UltraScale+ 器件中MMCME4替代MMCME3。UltraScale+ 器件MMCM原语包含MMCME4_BASE和MMCME4_ADV。 MMCME4_BASE实现基本MMCM功能。MMCME4_ADV除了能实现MMCME4_BASE功能外,还可以实现动态可重配等功能。 计算输出时钟频率 时钟输出频率和VCO输出频率计算公式如下,...
你好,我正在使用MMCM将10MHz时钟乘以MMCM_ADV乘以100MHz。Coregen向导预测600ps峰峰值抖动,我进行了相位噪声测量,从MMCM输出140ps rms相位噪声,大部分 fdouwqihdowd2020-06-18 13:57:55 使用mmcm_Advbehaiourial模拟失效的动态相移 大家好,我是fpga的新手,我想对使用mmcm_advIP的简单动态相移模块进行简单的行...
[Timing 38-1] DLL output pin(s) used on clock modifying cell clk_gen_i0/clk_core_i0/inst/mmcm_adv_inst without a feedback net: CLKOUT0 CLKOUT1 What is the issue here and how can I correct it? Solution The reason for the critical warning is that there is no connection for the ...
我是FPGA的新手,我想对使用mmcm_adv IP的简单动态相移模块进行简单的行为模拟。 我使用核心发生器将ip核心添加到项目中,以动态相移100 MHz输入时钟,psclock频率为50 MHz。 我写了一个测试平台,它只是在ps_clock的一个时钟周期内断言ps_enable信号,然后等待ps_done信号被置位。 但是ps_done信号从不表示相移已经...
/inst/mmcm_adv_inst/CLKOUT0]] -to [get_clocks -of_objects [get_pins clk_gen_i0/clk_core_i0/inst 2020-11-14 11:28:10 MMCM中的双时钟在比特流生成期间导致错误 )V7_MMCM_SET_COMPENSATION0- 类型为“MMCME2_ADV”的单元clk_gen_i / inst / mmcm_adv_inst具有从不同源类型驱动的CLKIN...
64176 - Vivado UltraScale Partial Reconfiguration - DRC (HDPR-50) still occurs even if all BUFGCE/MMCM_ADV ranges in the clock range are added into Reconfigurable Module's pblock 9月 23, 2021 Knowledge 标题 64176 - Vivado UltraScale Partial Reconfiguration - DRC (HDPR-50) still occurs even...
34901 - 11.5 ChipScope - IBERT - The following error has occurred. Error: map failed on chipscope_ibert. ERROR:PhysDesignRules:1997 - The computed value for the VCO operating frequency of MMCM_ADV instance Description When generating an IBERT core targeting Virtex-6 GTX FPGA, I see the followi...
MMCME4_BASE实现基本MMCM功能。MMCME4_ADV除了能实现MMCME4_BASE功能外,还可以实现动态可重配等功能。 计算输出时钟频率 时钟输出频率和VCO输出频率计算公式如下,其中M值通过CLKFBOUT_MULT_F设置,D值通过DIVLK_DIVIDE设置,O的值为通过CLKOUT_DIVIDE.设置。
50821 - 14.7 ERROR:LIT:667 - Block 'MMCM_ADV symbol "physical_group_u_pll_test1/clkfbout/u_pll_test1/mmcm_adv_inst" has its target frequency, FVCO, out of range. Description At the MAP stage, I am receiving the following error with my design: ...
67967 - UltraScale/UltraScale+ Memory IP - Error: [Unisim MMCME3_ADV-10] The calculated PFD frequency=799.360512 Mhz. This exceeds the permitted PFD frequency range Description Version Found:DDR4/3 v2.1; QDRII+ v1.3; RLD3 v1.3; QDRIV v1.2 ...