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Recent content by gadagkar.rohit

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    how to add a delay using a variable in system verilog

    for each iteration the delay is fixed. in each loop i am driving each bit of the wr_data. initially the data was driven at posedge of clk, but now i am using this @(posedge clk_sdcard_slot_in); for (int i=data_width-1; i>=0;i--) begin data_dev_slot[i] <= #del wr_data[index]...
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    how to add a delay using a variable in system verilog

    sorry for that my timescale is 1ns/100ps the delay that i am using is int del = urandom_range(0, 9); thereafter i am using data_dev_slot[i] <= #del wr_data[index]; i am running this in loop so that i get a different delay everytime. but i am getting a delay of 1200ps, 200ps, 2400ps...
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    how to add a delay using a variable in system verilog

    Hello, I am new to system verilog. I am trying add a randomized delay to a module. i tried doing this, but didnt work del = $urandom_range(0, 9); data_dev_slot[i] <= ##del wr_data[index]; can somebody please help me on this. Thanks, Rohit
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    question on Allpass filter

    Hi Raul, Thanks for the reply. when i plotted the response of the filter that you gave. It looks like a multinotch filter. I ve attached it. Please have a look.
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    question on Allpass filter

    Hello RaulPinheiro, Thanks for the reply. Am I doing anything wrong here - b = [-0.2 0 0 0 1] and a= [1 0 0 0 -0.2]. or is my difference equation correct? Thanks for you help
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    question on Allpass filter

    when i plot the frequency response using matlab with filter coefficients b = [-0.2 0 0 0 1] and a= [1 0 0 0 -0.2] i got a flat spectrum (here N = 3, g = 0.2). or for that matter with any value of N, i got a flat spectrum. i used freqz(b,a). ---------- Post added at 09:47 ---------- Previous...
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    question on Allpass filter

    Hello, I am designing an all pass filter which is a part of a reverberation generator for audio inputs. I am implementing it in verilog. The difference equation that i am using is y(n) = x(n-N) - g*x(n) + g*y(n-N); g - gain, N - filter order the transfer function is H(z) = [-g + Z^(-N)]/[1...
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    How to Read a file into verilog test bench and pass it to the verilog code

    Hello yoramgr, thanks for the reply... i figured out how to do it
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    How to Read a file into verilog test bench and pass it to the verilog code

    one more question yoramgr can i use display in a test bench? can i pass a 2 - D array from a test bench to verilog code. i am trying to send an array of data 8 bit wide and with depth 110592 its like [7:0] im_b_x[110591:0]
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    How to Read a file into verilog test bench and pass it to the verilog code

    Thanks a ton yoramgr!!! :razz: I have used readmemb. I am able to read from a file and write to a file in verilog properly. I have some issues to solve in MATLAB now. thanks a lot. I didnt have to use for loop for readmemb. it reads the whole file at a time for $display i needed to use the loop...
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    How to Read a file into verilog test bench and pass it to the verilog code

    i have made 3 different files for R, G and B files. now i am just trying to read R the file. i hve attached the text file. please check it. what might be the error in this code module Edge_Detection(); reg clk; integer fd; integer i; integer r; wire [7:0] im_r[110591:0]; initial begin fd...
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    How to Read a file into verilog test bench and pass it to the verilog code

    man this is getting frustrating...as u had suggested i tried generating 3 different files for R, G and B. when i open the text file to check the values the file for G is getting generated properly but for R and B the txt files are showing garbage values. so i am going to try with only one...
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    How to Read a file into verilog test bench and pass it to the verilog code

    Hello FvM, thank you for you reply. I have not yet used any one of them...but using which of these, readmemh or fread will i be able to read the complete 2D array and store it as a 2D array. so that i can process the data by indexing the row and column.
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    How to Read a file into verilog test bench and pass it to the verilog code

    hi yoramgr, this time i have to read a 2-D array... actually I am processing an image this time. the image is of 288 x 384 x 3 array. i have taken the pixel values into a txt file in hex format from MATLAB. and as you told me last time, the values in file are hex values and the file itself is...
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    How to Read a file into verilog test bench and pass it to the verilog code

    Thank You so much for your help
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