ALTFP_CONVERT in Modelsim

Thank you for your reply.

The section of my testbench for stimulating the convertor:

--- Quote Start ---

//Convert signals

logic convert_rst;

logic convert_en;

logic[9:0] in;

logic [31:0] out;

//Module

fpconvert converter(convert_rst,CLOCK_50,convert_en,in,out);

//Convert Signals

initial

begin

convert_rst = 1'b0;

convert_en = 1'b0;

in = 10'b0000000001;

# 50ns;

convert_rst = 1'b0;

convert_en = 1'b1;

in = 10'b0000100001;

# 50ns;

convert_rst = 1'b0;

convert_en = 1'b1;

in = 10'b0000100001;

# 50ns;

convert_rst = 1'b0;

convert_en = 1'b1;

in = 10'b0000100001;

# 50ns;

convert_rst = 1'b0;

convert_en = 1'b1;

in = 10'b0000100001;

# 50ns;

convert_rst = 1'b0;

convert_en = 1'b1;

in = 10'b0000100001;

# 50ns;

convert_rst = 1'b0;

convert_en = 1'b1;

in = 10'b0000100001;

# 50ns;

convert_rst = 1'b0;

convert_en = 1'b1;

in = 10'b0000100001;

end

--- Quote End ---

As you can see, it is the megafunction output port which is high Z.

I tried simulating without the 'mains' module (which is my entire design) which removed the 'Non-positive replication multiplier inside concat' error. So from what I can tell, it's a either an issue with the Megafunction or Modelsim.