最简单的选择是将clkfb_in连接到clkfb_out。- 如果提供的信息有用，请将答案标记为“接受为解决方案”...
WARNING: [Opt 31-1090] MMCM/path/mmcme3_adv_inst has compensation set to INTERNAL but has net connected from CLKFBOUT to CLKFBIN. Mandatory logic optimization has attempted to trim the net, but a LOC assignment on the MMCM/PLL prevents the optimization. Please remove the LOC assignment on...
If you instantiate the primitive it is possible to choose a value that is not achievable by the MMCM. During the bitstream creation, Vivado will round up or down from the user selected CLKFBOUT_MULT_F and/or CLKOUT[0]_DIVIDE_F to the closest achievable value. ...
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: ...
The following tables show the memory clock period ranges over which manual modification will need to be applied to the parameters of one or both of the MMCMs in order to avoid the use of CLKFBOUT_MULT_F = 2/3/4. Note that the period ranges that affect each MMCM are different, and ...
When using an MMCM in Virtex-6 FPGA, setting the CLKFBOUT_MULT_F to2, 3, and 4might cause the MMCM not to lock. MIG determines the value of CLKFBOUT_MULT_F parameter in order to ensure that the internal VCO frequency of MMCMs used in the design are as h...
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: ERROR:LIT:667 - Bl...
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: ...