In order to accommodate the 2 other selector lines, we need to use the . The components and connections all need to separately defined here. If the result of this multiplexer is one, we'll then add to this bit the result of another multiplexer applied to p_b plus a carry bit. Hence the number of selector lines in the p:1 multiplexer must be an integral multiple of the number of selector lines in the q:1 multiplexer. Your implementation should start with the smaller blocks showing in the ALU, and then using those smaller blocks to build the whole ALU. 100%. She has an extensive list of projects in Verilog and SystemVerilog. If the code is 000, then I will get the output data which is connected to the first pin of MUX (out of 8 pins). You might have noticed that other modeling styles include the declaration of variables along-with their respective data- types. Here is the final simulated waveform for the 2X1 MUX circuit.Simulation Waveform 2:1 MUX "@type": "Person", Chanchal is a zestful undergrad pursuing her B.Tech in Electronics and Communication from the Maharaja Surajmal Institute of Technology, New Delhi. Use Git or checkout with SVN using the web URL. This site uses Akismet to reduce spam. These all codes will redirect the output from corresponding pins of MUX. m21 is the name of the module. 16-to-1 multiplexer (16X1 MUX) Verilog - Blogger I will continue with the other statement as I know how to make the first small module. For 32-bits, thats a 32-bit mux-costing many LUT4s to accomplish. Repeat this for the rest of the modules after considering the logic diagram. It has two 2-1 and one 3-1 MUX, a 32-bit Adder, a 32-bit subtractor, and a 16-bit multiplier. Now since this the dataflow style, one is supposed to use assign statements. Our new module has two inputs (selector, clock) and an output (8 bits of result). The prerequisite for this style is knowing the basic logic diagram of the digital circuit that you wish to code. It is the hardware implementation of a system.RTL schematic Gate level modeling. 1) Take a 4-to-1 mux, connect A1-A4 and S0-S1 to it. |4|5| |7|8| |3|4| |5|6| If rstn is pulled low, it will reset the shift register and output will become 0. You only have half the truth table, and it looks like the you swapped the output for the second and third line. You may find a detailed explanation and steps to write the testbench over here! number of bits in each signal a, bor sum).This is often known as a "vector"or a "bus".Here the data width is 32-bit, and it is ranging from bit 31 down to bit 0 (e.g. Now, if the S event is true, the output Y will be D1, else the output will be D0. The only difference is it doesnt include any built-in gates. 2:1 MUX Verilog Code 4:1 MUX Verilog Code Multiplexer Verilog Code . All rights reserved. 122 lines (92 sloc) 2.14 KB. In this article, well write the Verilog code for the simplest multiplexer, i.e. Solved Model the following simple logic modules using - Chegg genvar ig; wire input_array +:CHANNELS-1]; assign out = input_array; generate for(ig=0; ig<CHANNELS; ig=ig+1) begin: array_assignments assign input_array = in_bus+:WIDTH]; end endgenerate An interesting problem in digital electronics is to make a p:1 multiplexer using only a q:1 multiplexer. System Verilog (Tutorial -- 4X1 Multiplexer) Jun. After reading this post, youll be able to. "publisher": { Total number of multiplexers = k1+k2++kn-1+1 = p/q + p/q2++p/qn-1+p/qn. We can orally solve for the expression of the output that comes out to be: For the gate level, we will first declare the module for 2: 1 MUX, followed by the input-output signals. first by assign keyword and the second by case statements. Verilog is very much like C. However, the declaration of a, b and sumin the module add32 specifies the data width (i.e. Model the following simple logic modules using Verilog HDL 1. L3: 6.111 Spring 2004 Introductory Digital Systems Laboratory 1 L3: Introduction to Verilog (Combinational Logic) Acknowledgements : Rex Min Verilog References: Samir Palnitkar, Verilog HDL, Pearson Education (2nd edition). It is usually written in RTL and is somewhat similar to gate-level modeling. sum[31:0]). I also own and mange multiple WordPress based websites. In this module, we must get only last eight bits of the result from multiplexer module and observe value of these leds on the FPGA board. Now you have a 5-to-1 mux. "Signpost" puzzle from Tatham's collection. module m81 (out, D0, D1, D2, D3, D4, D5, D6, D7, S0, S1, S2); In behavioral modeling, we have to define the data-type of signals/variables. Mux; NAND; Mux; Add/sub; Case statement; Build a circuit from a . Your Verilog code should be well-formatted, easy to understand, and include comments where appropriate (for . 32 to 1 MUX 2. library IEEE; use IEEE.STD_LOGIC_1164.ALL; use IEEE.STD_LOGIC_ARITH.ALL; use IEEE.STD_LOGIC_UNSIGNED.ALL; package fuggveny1 is function multi321 . Expert Help. The module declaration will remain the same as that of the above styles with m81 as the module's name. I need help implementing a mux synchronizer on Verilog. Design the 2:1 MUX in Verilog with all abstraction layers (modeling styles). Connect and share knowledge within a single location that is structured and easy to search. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Data Structures & Algorithms in JavaScript, Data Structure & Algorithm-Self Paced(C++/JAVA), Full Stack Development with React & Node JS(Live), Android App Development with Kotlin(Live), Python Backend Development with Django(Live), DevOps Engineering - Planning to Production, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Interview Preparation For Software Developers, Interprocedural Optimization using Inline Substitution, Difference Between Transpiler and Compiler. Prerequisite Multiplexers in Digital LogicProblem :Design of a 2:1 MUX using Verilog Hardware Description Language along with Testbench. You would then use a 4-to-1 mux to select among them at the end. A 8:1 Multiplexer has 8 input lines and log2 8 = 3 selector lines. . I written a Verilog code for 4*1mux mux stands for multiplexer in digital circuits. R.K.Mishra - HDL Program for 2-to-1 Multiplexer:- - Google Sites Verilog Code for SR-FF Data flow level: Verilog Code for SR-FF Gate level; verilog code for D latch and testbench; Verilog Code for D-FF Behavioral level Where each D is the output for each 8:1 multiplexer. First, define the module m21 and declare the input and output variables. By using our site, you First, write the name of the module you need. A display controller will be Last time , an Arithmetic Logic Unit ( ALU ) is designed and implemented in VHDL . A multiplexer or mux in short, is a digital element that transfers data from one of the N inputs to the output based on the select signal. The case shown below is when N equals 4. 2:1 4:1 8:1 Mux using structural verilog. 32-to-1 multiplexer VHDL CODE Simplification. The easy solution is to create a rotate left unit, a rotate right unit, a shift left unit, and a shift right unit and finally an output select mux. verilog code for 4 bit mux and test bench | VLSI For You Verilog/32-to-1 Multiplexer at master MariaMarotti/Verilog Verilog code for Moore FSM Sequence Detector 37. About the authorChanchal MishraChanchal is a zestful undergrad pursuing her B.Tech in Electronics and Communication from the Maharaja Surajmal Institute of Technology, New Delhi. An alternative implementation would use four copies of the 4-to-1 MUX to select between the three kinds of shifts and no shift at all at each stage. Lab 1 - Combinational Logic and ALUs I think you might have made a mistake in your truth table for this 21 MUX? what is conditional operator.2.Difference between conditional operator & if-else3. Behavioral modeling mainly includes two statements: You should notice that the output is equal to the second input if the select line is high. |1|2| |3|4| verilog example code of logical operators nandland . If I want my conlang's compound words not to exceed 3-4 syllables in length, what kind of phonology should my conlang have? I written a Verilog code for and gate using two Nand gate Please describe this ALU using Verilog. Verilog Multiplexer - javatpoint (adsbygoogle = window.adsbygoogle || []).push({}); Now we are going to share with you the 4:1 MUX Verilog code in dataflow and behavioral. In such cases, we have to use the enable input. Heres the final code of the 2:1 mux using gate-level modeling. The input signals are D0 and D1. 2:1 Multiplexer is having two inputs, one select line (to select one of the two input) and a single output. Design. I am sorry, it is too difficult to understand your need and answer your question here. 2:1 MUX is a very simple digital block with 2 data inputs, one select input and one data output. Now the logical diagram for a 2:1 MUX shows that we need two AND gates, one OR gate and one NOT gate. A Verilog Testbench for the Moore FSM sequ Last time , I presented a VHDL code for a clock divider on FPGA. You can find the detailed working and schematic representation of a multiplexer here. #4 writing verilog code for different mux ( 4:1, 8:1, 16:1 , 32:1 mux You may re-send via your, 32-to-1 multiplexer VHDL CODE Simplification, Intel Connectivity Research Program (Private), oneAPI Registration, Download, Licensing and Installation, Intel Trusted Execution Technology (Intel TXT), Intel QuickAssist Technology (Intel QAT), Gaming on Intel Processors with Intel Graphics, http://www.alteraforum.com/forum/showthread.php?t=41601. this what I did so far but I got errors!! Verilog Simulation: 16 to 1 Mux Output High Z This level describes the behavior of a digital system. Here's an 8:1 multiplexer being used as a 2:1 multiplexer. Hello! First, well start by declaring the modules for each logic gate. 32-to-1 multiplexer VHDL CODE Simplification This is virtually the lowest abstraction layer, which is used by designers for implementing the lowest level modules, as the switch level modeling isnt that common. A MUX with 2^n input lines have n select lines and is said to be a 2^n: 1 MUX with one output. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Data Structures & Algorithms in JavaScript, Data Structure & Algorithm-Self Paced(C++/JAVA), Full Stack Development with React & Node JS(Live), Android App Development with Kotlin(Live), Python Backend Development with Django(Live), DevOps Engineering - Planning to Production, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Flip-flop types, their Conversion and Applications, Synchronous Sequential Circuits in Digital Logic, Universal Shift Register in Digital logic, Program to Implement NFA with epsilon move to DFA Conversion, Difference between Mealy machine and Moore machine, Design 101 sequence detector (Mealy machine), Amortized analysis for increment in counter. We can also go the opposite way and use a multiplexer with more inputs than required as a smaller MUX. He also rips off an arm to use as a sword. This is done with the help of a concept called module instantiationand falls under a separate module top. In most of the cases, we code the behavioral model using the truth table of the circuit. . If you have any query/suggestion please feel free to comment below the post. Instantiation is used when we want to repeat a particular function/ module for different sets of input. mux_four_to_one.v This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() ); Then what changes you have made to get the output?can u please tell me. Since were concerned about designing the Verilog code for a 2:1 MUX, have a look at its circuit diagram. }, " DOCX www.bdu.ac.in Verilog Code for 2:1 MUX using if statements - Blogger Well, in Verilog hardware descriptive language, we have four main abstraction layers (or modeling styles). I am also a Google AdSense publisher and operate multiple Facebook pages. Learn more about the CLI. I misunderstood how the output for a mux should be structured. Point to be noted here; we are supposed to define the data- type of the . Verilog code for 32 x 1 Multiplexer using two 8 x 1 Multiplexer and one 4 x 1 Multiplexer (Gate level modeling) - GitHub - Gayathiri18/mux_32x1: Verilog code for 32 x 1 Multiplexer using two 8 x 1 . Which language's style guidelines should be used when writing code that is supposed to be called from another language? By using our site, you When sel is at logic 0 out=I0 and when select is at logic 1 out=I1. This repository contains source code for past labs and projects involving FPGA and Verilog based designs. 32 bit. Now using the assign statement, write the function of the logic gate in a statement. |C1|C2||P1|P2| Verilog n-bit Bidirectional Shift Register - ChipVerify I have little knowledge of Verilog and need this design as soon as possible. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Similarly, a 16to1 mux will have the same ratio. // Verilog project: Verilog code for Multiplexer, // Verilog code for 2x32-to-32 Multiplexer, // fpga4student.com: FPGA projects, Verilog projects, VHDL projects, What is an FPGA? Comparing 2:1 with 2^n: 1 (as mentioned before) we get n = 1, which is the number of select lines (input variables = 2, select lines = 1, output signal = 1). I have expertise in Python, .Net, C# . Verilog coding vs Software Programming 36. T1 wire(which is the intermediate signal) is the output, D1 and S are input. statement always two input mux output is z inputs in1 in2 sel assign z a b web this verilog a hardware . verilog code for encoder and testbench; verilog code for decoder and testbench; verilog code for 4 bit mux and . Is it possible to design and apply this switching with esp32 and MUX?And is it possible to record the savings afterall? Learn everything from scratch including syntax, different modeling styles with examples of basic circuits. multiplexer GitHub Topics GitHub It is also known as a data selector. Heres the final code for 2:1 mux in structural style. Theres a proper definition for the expression of the digital system within the module itself. If datain is your 32-bit input, sel is your 5-bit select, then the output bit select is simply For more complete information about compiler optimizations, see our Optimization Notice. Simple 16 to 1 MUX. This works only when p is the n-th power of q. Structure modeling of 2-to-1 MUX; 4-to-1 MUX using two 2-to-1 MUX; 8-to-1 MUX using two 4-to-1 MUX; 16-to-1 MUX usng two 8-to-1 MUX . 32/8 = 4, so four 8:1 Multiplexers are needed, but they have insufficient selector lines. How Verilog works on FPGA, Verilog code for 16-bit single-cycle MIPS processor, Programmable Digital Delay Timer in Verilog HDL, Verilog code for basic logic components in digital circuits, Verilog code for Fixed-Point Matrix Multiplication, Verilog code for Carry-Look-Ahead Multiplier, Image processing on FPGA using Verilog HDL, How to load a text file into FPGA using Verilog HDL, Verilog code for Traffic Light Controller, Verilog code for button debouncing on FPGA, How to write Verilog Testbench for bidirectional/ inout ports, 32-bit 5-stage Pipelined MIPS Processor in Verilog (Part-1), 32-bit 5-stage Pipelined MIPS Processor in Verilog (Part-2), 32-bit 5-stage Pipelined MIPS Processor in Verilog (Part-3), How to generate a clock enable signal in Verilog, Verilog code for Moore FSM Sequence Detector, Verilog code for 7-segment display controller on Basys 3 FPGA, [FPGA Tutorial] Seven-Segment LED Display on Basys 3 FPGA, Verilog code for Arithmetic Logic Unit (ALU), VHDL code for Arithmetic Logic Unit (ALU), VHDL code for Seven-Segment Display on Basys 3 FPGA, Full Verilog code for Moore FSM Sequence Detector. It normally executes logic and arithmetic op Last time , I wrote a full FPGA tutorial on how to control the 4-digit 7-segment display on Basys 3 FPGA. A boy can regenerate, so demons eat him for years. 2) Take a 8-to-1 mux and connect the A5 input to A6-A8 too. Full VHDL code for the ALU was presented. |2|3| |8|9| and not and or are the predefined built-in gates, and were instantiating these gates with their respective input-output ports. The verilog code of Barrel . This logic can be stated by using the if-else statement. A 4x1 multiplexer can be implemented in multiple ways and here you'll see two of the most common ways: The module called mux_4x1_assign has four 4-bit data inputs, one 2-bit select input and one 4-bit data output. The general block level diagram of a Multiplexer is shown below. A multiplexer is a device that selects one output from multiple inputs. Implementing 32:1 Multiplexer using 8:1 Multiplexers { But in the gate- level, we only declare the intermediate variables as wire; theres no need for reg or wire declaration for input-output entities. The case shown below is when N equals 4. where Y is the final output, D0, D1, and S are inputs. |3|4| |8|9| The Multiplexer is used in register file and the top level of the pipelined MIPS . 411 mux verilog code for 16 bit inputs datasheet & application notes Heres an example of implementing 8:1 Multiplexer using 2:1 Multiplexers. The multiplexer will select either a , b, c, or d based on the select signal sel using the assign statement. |5|6| |7|8| Mux.pdf - O Y MVX I s A B O O O O O O O I 01 0 O O I I 10 Copy the n-largest files from a certain directory to the current one. "mainEntityOfPage": { Where is the code for 16 to 1 using 8 to 1. B. ' O Y MVX I s A B O O O O O O O I 01 0 O O I I 10 00 O F D C 1 I I 00 I 0 ii 8 0 I 81 I 0 O O O I 0 00 1 I 0 I 0 1 I 0 0 I 1 I 11. Donald Thomas, Philip Moorby, The Verilog Hardware Description Language, Fifth Edition, Kluwer Academic Publishers. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. may be implemented as larger than 32 bits web 13 apr 2022 verilog always block is one of the four Why refined oil is cheaper than cold press oil? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Since I prefer to apply dipole-dipole method,I designed a measurement cable connected to 9 probes,in order to stop the measurement at the n6 stage.Thus I read the injected current from the first 2 probes,and I read the potentials from the following probes(C1-C2;P1-P2).Firstly I take the potential readings from P1-P2 as power supply is turned-off.Then I turn on the power supply and I take current readings from C1-C2 and voltage readings from P1-P2.This is repeated for each pairings as told in the figure attached. I have resistivity measurement project using 2 DMMs,one for measuring V and the other for I. You may use the delay. module instantiation is not allowed under a structural if. 11-08-2014 05:20 PM. Download Now. |1|2| |4|5| Verilog code for Clock divider on FPGA 33. (The model of DMMs I used is General Tools TS04,which has bluetooth). Verilog Code of 2:1 MUX in Behavioral Model is given below. GitHub Gist: instantly share code, notes, and snippets. Writing 4:1, 8:1, 16:1. "headline": "Article headline", The general block diagram of a mux based Barrel Shifter is given below. Well structurize for each of the gates separately. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. (Verilog) The following is a 32-bit Arithmetic Logic Unit (ALU) [see slides]. RAM Verilog Code | ROM Verilog Code | RAM vs ROM - RF Wireless World Otherwise, it is equal to the first input itself. Verilog code for D Flip Flop is presented in this project. 4:1 MUX Verilog Code in Dataflow model is given below. In short, I am a programmer with good automation and digital marketing skills. 32 Bit Multiplexer Verilog Code Here I am to help you to get your job done. |5|6| |8|9| Can I use the spell Immovable Object to create a castle which floats above the clouds? 4 to 6 Decoder 3. Sorry, you must verify to complete this action. D Flip-Flop is a fundamental component in digital logic circuits. A free and complete VHDL course for students. PDF L3: Introduction to Verilog (Combinational Logic) Asking for help, clarification, or responding to other answers. a 2:1 MUX. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. sensitivity list not complete for the always block. Here we are implementing Risc-V single cycle microprocessor on Basys3 (Artix-7) .We are testing with Fibonaccie Series and showing on 7 segment display.. - RISC-V-Microprocessor-verilog-code-implem. Are you sure you want to create this branch? You may re-send via your Similarly for and gate, T1, D1, and T2, D2 are inputs to two and gates and S and Sbar are their respective output. Verilog code for PWM Generator 35. The selection of a particular input line out of several choices takes place on the basis of the selector lines. Would love your thoughts, please comment. Raw Blame. Verilog code for 8:1 mux using behavioral modeling. We need creating a new module for check the code as I said above. Input a Verilog HDL or VHDL , provided in both Verilog HDL and VHDL for you to include in your design. Overlapping Sequence Detector Verilog Code | 1001 Sequence Detector | FSM Verilog Code, Full Adder Verilog Code | Verilog Code of Full Adder Using Half Adder, 16 bit Radix 4 Booth Multiplier Verilog Code, Synopsys Interview Questions for Analog Design Engineer, Johnson Counter Verilog Code | Verilog Code of Johnson Counter, 8 Bit Barrel Shifter Verilog Code | Verilog Code of Barrel Shifter, Verilog Code of Decoder | 3 to 8 Decoder Verilog Code, Carry Look Ahead Adder Verilog Code | 16 bit Carry Look Ahead Adder Verilog Implementation, Carry Select Adder Verilog Code | 16 bit Carry Select Adder Verilog Implementation, 2 to 4 decoder verilog code using behavioural, 3 to 8 decoder using 2 to 4 decoder verilog code, 3 to 8 decoder verilog code using case statement, 3 to 8 decoder verilog code with testbench, 4 to 16 decoder using 2 to 4 decoder verilog code, 4 to 16 decoder using 3 to 8 decoder verilog code, full adder using 3 to 8 decoder verilog code, johnson counter using d flip flop verilog code, johnson counter verilog code with testbench, logic equivalence checking interview questions, verilog code for 3 to 8 decoder using 2 to 4 decoder, verilog code for 3 to 8 decoder using behavioral modelling, verilog code for 3 to 8 decoder using dataflow modelling, verilog code for 3 to 8 decoder using structural modelling, verilog code for decoder using behavioral modeling, vhdl code for 3 to 8 decoder using dataflow modelling, Basic Linux Command Every VLSI Engineer Should Know, VLSI Interview Questions with Solutions | VLSI Digital Interview Questions, RC Circuit Analog Interview Questions | 2R-2C Combination Step Voltage Input, 2R-1C Combination Step Input Voltage Response | RC Circuit Analog Interview Questions, Carry Save Adder Verilog Code | Verilog Implementation of Carry Save Adder. Implementation of SOP function using multiplexer, Difference between Multiplexer and Demultiplexer, Difference between Multiplexer and Decoder, Python program to implement 2:4 Multiplexer, Implementing Any Circuit Using NAND Gate Only, Implementing Non-contiguous Memory Management Techniques. Thank you for your help! To shift a 8 bit data , register based shifters will take 8 clock cycles whereas Barrel Shifter can do it by the time of one clock cycle. In a 4to1 mux, the ratio for inputs:outputs is 4:1. multipluxer is a combinational circuit that selects one output from multiple input based on . The demux_32 code relies on the use of a conversion function in order to minimize the amount of VHDL code that needs to be written; to_integer is defined in the numeric_std package which is compiled into the ieee library. Derive the equation from this truth table and cross check it with the equation above! This FPGA tutorial will guide you how to control the 4-digit seven-segment display on Basys 3 FPGA Board. Verilog code for 2:1 MUX using behavioral modeling. |4|5| |6|7| PDF Verilog modeling* for synthesis of ASIC designs - Auburn University }, This is the testbench code for the 2:1 multiplexer. That marks the end of a module for AND gate. Note that the signal out is declared as a reg type because it is used in a procedural block like always. Solved Write a 32:1 multiplexer module called mux32 with - Chegg Why the obscure but specific description of Jane Doe II in the original complaint for Westenbroek v. Kappa Kappa Gamma Fraternity? S D0 D1|Out0 0 0 | 00 0 1 | 00 1 0 | 10 1 1 | 11 0 0 | 01 0 1 | 11 1 0 | 01 1 1 | 1. You can refer to individual bits using the index value. Denise Wilson Follow. Notice the interconnect among different modules inside the ALU. Finding bugs in code. Please click the verification link in your email. "name": "Technobyte", What is a mux or multiplexer ? 2. |2|3| |7|8| "logo": { |2|3| |4|5| verilog code for 8 bit ripple carry adder and testbench; subtractor. The selection of the input is done using select lines. Similarly for other gates also: NOTE: use a different variable name for each input and output signal. Now lets start the coding part. Since the output of 2:1 MUX changes once there is a change in D0 OR D1 OR S well use always statement. Right from the physics of CMOS to designing of logic circuits using the CMOS inverter. For this problem, we showed just last 8 bits of result via leds on the board. in2 : in1; endmodule :mux2_1 We have implemented the above barrel shifter in verilog. Not the answer you're looking for? profile. Next comes the declaration of input, output, and intermediate signals. PDF In this lecture, we will go beyond the basic Verilog syntax and examine Learn how your comment data is processed. module m21( D0, D1, S, Y); Don't forget to mention the data- type of the ports. To review, open the file in an editor that reveals hidden Unicode characters. What are the advantages of running a power tool on 240 V vs 120 V? So, we need to put 2 extra selector lines. 32-bit Demultiplexer - Doulos 16-to-1 multiplexer (16X1 MUX) Verilog Get link; Facebook; Twitter; Pinterest; Email; Other Apps; August 31, 2018 Bottom-UP Hierarchical Structure. For example for not gate, Sbar is the output and S is the input. The order of mentioning output and input variables is crucial here, the output variable is written first in the bracket, then the input ones. If nothing happens, download GitHub Desktop and try again. Mux Synchronizer on Verilog FPGA | Forum for Electronics This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. We need creating a new module for check the code as I said above. |3|4| |6|7| Optimize your implementation if possible. Thanks for contributing an answer to Stack Overflow! Find centralized, trusted content and collaborate around the technologies you use most.