(答复记录 54090)Vivado 约束 - 在 create_generated_clock 约束上收到“ERROR: [Common 17-161] Invalid option value '6.5' specified for 'multiply_?by'.” (答复记录 62528)Vivado 约束 - Critical Warning:[Constraints 18-551] Could not find an automatically derived clock matching the supplied criter...
multiplication. Use the -phase option to specify any phase shift relative to the new clock period. Use the -offset option to specify an arbitrary offset or time shift. Use the -invert option to invert the generated waveform. Clock generation can also be specified with the -edges and -edge_...
The -source option specifies the name of a node in the clock path that you use as reference for your generated clock. The source of the generated clock must be a node in your design netlist, and not the name of a clock you previously define. You can use any node name on th...
# Option 1:master clock source is the primary clock source point with a 'divide by' value of the circuit. create_generated_clock -name clkdiv2 -source [get_ports clkin] -divide_by 2 [get_pins REGA/Q] # Option 2:master clock source is the REGA clock pin with a 'divide by' value...
create_generated_clock -sourcereference_pin[-divide_bydivide_factor] [-multiply_bymultiply_factor] [-invert] source Arguments -sourcereference_pin Specifies the reference pin in the design from which the clock waveform is to be derived.
OptionDescription -name <clock name> Name of the generated clock, for example, clk_x2. If you do not specify the clock name, the clock name is the same as the first node to which it is assigned. -source <host pin> The <host pin> specifies...
Can you suggest another option to generate reliable sub-clocks from a master please? regards Dave Translate 0 Kudos Copy link Reply Altera_Forum Honored Contributor II 06-09-2014 10:03 AM 1,955 Views My follow up question about the correct way to dive the clock is a ...
(Xilinx Answer 54090) Vivado Constraints - "ERROR: [Common 17-161] Invalid option value '6.5' specified for 'multiply_?by'." received on create_generated_clock constraint (Xilinx Answer 62528) Vivado Constraints - Critical Warning:[Constraints 18-551] Could not find an automatically derived cloc...
Since it found the correct clock, and I assume you have a -divide_by 1000 option, then it should be able to get 1khz. The second thing it does is tries to find the path from the -source to the target. If it can't find that path, which would occur if there were other ri...
(Xilinx Answer 54090) Vivado Constraints - "ERROR: [Common 17-161] Invalid option value '6.5' specified for 'multiply_?by'." received on create_generated_clock constraint (Xilinx Answer 62528) Vivado Constraints - Critical Warning:[Constraints 18-551] Could not find an automatically derived cloc...