My Humble House

[Solution] 

This warning happens when the upper module instantiates this sub module and defines its parameters by defparam at the same time:

defparam u_XXX.param_A = 126;

XXX  u_XXX {

....

}

 

So in the script, do not use 

read_file -format verilog "XXX.v"

 

Use

analyze -format verilog { XXX.v YYY.v ZZZ.v }

elaborate TOP_module

 

 

https://www.cnblogs.com/kathywh/p/8550670.html