Can we have an array of custom modules?

Question

Can we have an array of instances for a custom module?

For example: we can have input [15:0] a; - this creates a bus. Can we do same thing for custom mo

Answer 1

it is not possible to do this directly (update: now after mark4o's answer I know that there is a way), but what you can do is using the generate statement to create multiple instances of your custom module and hook them up to your signals. Should look something like this:

wire DFF_i[15:0];
wire DFF_o[15:0];

generate
  genvar i;
  for (i=0; i<15; i=i+1) begin : dff
    custom i_custom(
       .clk(clk)
      ,.input(DFF_i[i])
      ,.output(DFF_o[i])
      );
  end
endgenerate

Otherwise there are probably some possibility during synthesis to use the correct custom modules, but I'm not an expert there.

Cheers, Daniel