How to force manually in ModelSim one dada bus with value like sin(x) - How to force manually in ModelSim one dada bus with value like sin(x) Hi, I am checking to force manually some data bus like: input[10..0] in MOdelSim like here(by console): force input[0] 0 0, 10, 10, ...... - repeat 200 force input[1] 0 0, 10, 10, ...... - repeat 200 ecc There is a way to do it in automatic? I means, there is a way to load some file prewrite and add to console in some how? Or mauve by using some verilog or VHLD script that running when i click the simulation start in modelSIM Replies: Re: How to force manually in ModelSim one dada bus with value like sin(x) I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, Please login to ‘ https://supporttickets.intel.com/s/?language=en_US ’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions. Replies: Re: How to force manually in ModelSim one dada bus with value like sin(x) tks a lot for all support Replies: Re: How to force manually in ModelSim one dada bus with value like sin(x) In that case, you may create a module for the sine function: module sine_generator ( input wire clk, input wire reset, output reg signed [10:0] sine_out ); reg [6:0] index; // 7-bit index for 128 samples reg signed [10:0] sine_lut [0:127]; // 128-point lookup table initial begin // Precompute sine values and load them into the LUT sine_lut[0] = 0; sine_lut[1] = 50; sine_lut[2] = 100; sine_lut[3] = 150; sine_lut[4] = 200; sine_lut[5] = 250; // ... (continue with the full sine wave values up to 127) sine_lut[127] = -50; end always @(posedge clk or posedge reset) begin if (reset) begin index <= 0; sine_out <= 0; end else begin sine_out <= sine_lut[index]; // Output the sine value index <= index + 1; // Increment index for next sample end end endmodule Replies: Re: How to force manually in ModelSim one dada bus with value like sin(x) yes, I tried to work with real value and $sin function but when i try to make systesys the message the the function real and $sin are non supported. If u have some way to fix it will be great. Replies: Re: How to force manually in ModelSim one dada bus with value like sin(x) Is there any further question? Replies: Re: How to force manually in ModelSim one dada bus with value like sin(x) You will need to write a testbench for stimulus. We don't usually offer the code in the forum, but here is some example you can try out: module testbench; reg [10:0] input_signal; integer i; real pi = 3.14159; real sin_value; initial begin for (i = 0; i < 100; i = i + 1) begin sin_value = $sin(2 * pi * i / 100); // Generate sine wave input_signal = sin_value * ((1 << 10) - 1); // Scale to 11-bit range #10; // Wait 10 time units end end endmodule. Also, please take a look https://www.youtube.com/watch?v=Dm7Ow4XI22g on how to setup the testbench.