ID:13456 Verilog HDL Function Declaration error at <location>: function must have at least one input

CAUSE: In a Function Declaration at the specified location in the Verilog Design File (.v), you did not specify an input for the function you are declaring. However, a function must have at least one input.

ACTION: Because tasks do not require at least one input, you can convert the function to a task by replacing the Function Declaration with a Task Declaration. Or, specify at least one input for the function in the Function Declaration.