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  1. Feb 2, 2020 · In this video, I would like to show you how to create a fresh project with Xilinx Vivado 2019.2 version. And then how to create VHDL sources and then finally...

  2. KEEP attribute in Verilog & Timing Optimization. I use ISE DS 13.2. During synthesis, XST optimizes my module by trimming some FFs. I want to keep these design elements in my implementation on FPGA. I added KEEP attribute as follows: (* KEEP = "TRUE" *) reg [10:0] state_reg, state_next; After that XST gave these warnings: WARNING:Xst:387 - The ...

  3. SystemVerilog interfaces were developed to allow for easier connectivity between hierarchies in your design. One way to think of them is as collections of pins that are common to many modules. Instead of having to define many pins on each module, they are defined once in an interface, and then the interface is defined on the module instead of pins.

  4. Feb 27, 2013 · parameter A = 2; parameter B = 2; localparam C = A + B; In fact in your original question, C should be equal to 4. However, it is dangerous and very possible to be overrided because C is a parameter. Using localparam is the right way to define a parameter which cannot be override by defparam or instance parameter value assignments.

  5. July 21, 2014 at 12:17 PM. VHDL and Verilog source codes. There are several open source codes examples of Verilog that you can find for your problem. Whereas in VHDL there are mostly publications with top level only.

  6. This tutorial is not meant to be an in-depth study about Verilog or FPGAs or anything, but just a guide to walk you through different basic things you need to know to design a simple digital circuit in Verilog, simulate it and implement it on hardware. We will be using Xilinx ISE for simulation and synthesis.

  7. FFT and IFFT implementation in VERILOG using IP core. I'm using the FFT v7.1 core to perform both FFT and IFFT. Features: single channel. 8 points. floating point interface. in database it has given that by setting fwd_inv=1 FFT is performed and by setting fwd_inv=0 IFFT is performed. but the thing is whether i set fwd_inv=0 or 1 am able to ...