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May 1, 2020 · The code is not VHDL. It is not legal Verilog either because input a is two dimensional (ports can only be single bits and one dimensional vectors in Verilog). It is legal SystemVerilog; the successor of Verilog. The reason z only has the value of 0 or 1 is because it was defined as a single bit (wire z;). There should be a compile warning.
Aug 28, 2022 · Always write Verilog code using the highest level of abstraction. There is no need for submodules when creating a simple mux. All of the design modules can be replaced by a single module: mux8to1. input [7:0] in, input [2:0] sel, output out. assign out = in[sel]; reg [7:0] in; reg [2:0] sel;
Feb 6, 2016 · 2nd Option. It seems that, you wrote this code, by considering the actual gate level schematic or netlist of the 2*1 mux. But to mimic, the actual gate level design, you should consider ANDing of the individual bits of the i0, i1 nets. So your code may look like this : assign o[0] = (i0[0] & ~sel) | (i1[0] & sel);
Sep 5, 2021 · In a 4to1 mux, the ratio for inputs:outputs is 4:1. Similarly, a 16to1 mux will have the same ratio. Therefore, we should only expect 4 binary digits as output. This is why the 3 most significant outputs were High Z. They were not connected to anything. Changing [15:0] out to [3:0] out has solved my problem. Share.
May 20, 2021 · Help me to solve this problem, for following question Create a 16-bit wide, 9-to-1 multiplexer. sel=0 chooses a, sel=1 chooses b, etc. For the unused cases (sel=9 to 15), set all output bits to '1'.
Jul 16, 2017 · Implement Muxes between 11 buses where each bus is 8-bits wide. It has 2 cycles of latency. It has Optimized for maximum clock frequency. I have written this code so far: module muxcase (a,b,c,d,e,f,g,h,i,j,k, select, op, clk, reset); Now i am not sure how to incorporate the maximum clk frequency part and whether my counter for 2 clock cycles ...
Mar 11, 2021 · Note: This question about multiplexers is similar to but not identical to this question which is about demultiplexers. I want to build a fully parameterisable multiplexer in SystemVerilog. So far, ...
Aug 28, 2016 · EDIT: Yes, we can implement it without using the last 4:1 MUX; but you have to use an OR gate there and also include enable pins for each 4:1 MUX. It utilizes the traditional method; drawing a truth table and then analytically deciding the design. Here is an example of an 8:1 MUX from 2:1 MUX without using a 2:1 MUX at the output.
Jun 21, 2022 · I just don't know how to put them all together. I have the start of the register file module but just have no clue how to top end it. Is there any way anyone could explain, I'm just so lost. I also think there may be an issue with my Register module. I really am a novice with verilog, so I'm very confused on most things.
Aug 26, 2013 · As MortenZdk says, use a simulator like ModelSim to learn VHDL syntax is better. You can compile a single VHDL file instead of the whole project and run the simulator to veritfy it. And ModelSim is very easy to use for its great online tutorial:). answered Aug 26, 2013 at 15:35. sensor.
