Hi,

I'm making a block to work as a probe. So I want to send a file as input of the block and plot it. Some how I should manage to send the filename to the probe and ask for the output.
Does anyone know how to send a strng into a block? I could not find any thing in the book yet.

Thank you.

I guess its NOT the same thing..
but I recently used the new Verilog-A string parameter on a block, which I set to a Design Variable so that I could change the filename from and Ocean script..

it works nicely..  
..
..
parameter string myFileName = "Module_Output_file%D_%T.dat";
..
..
analog begin
 @initial_step("tran") begin
 FileHandle = $fopen( myFileName);
 end

---
In verilog-D you can use a register to hold a string value, (8 bits/character)
and until the latest version supports string parameters, you can just leave the TYPE undefined
parameter myFileHandle = "myDefaultFileName.dat"
initial begin
filehandle = $fopen(myFileHandle);
But in digital side , at least in cadence the %T type code isn't supported in the $fopen.