Table of Contents
What are checkers in SV?
Checkers for standard protocols such as PCI Express, AMBA AHB, and MII/MAC each encompass a complete set of checks and coverage points for the protocol. These are packaged as reusable SystemVerilog Assertion IP, preferably in one or more SystemVerilog interfaces.
What is Edaplayground?
EDA Playground is a free web application that allows users to edit, simulate (and view waveforms), synthesize, and share their HDL code. Its goal is to accelerate the learning of design and testbench development with easier code sharing and with simpler access to simulators and libraries.
Where do Verilog codes run?
Install
- Compile from source on Linux/Mac or in Cygwin on Windows. You will need make, autoconf, gcc, g++, flex, bison to compile (and maybe more depending on your system).
- Install on MacOS using Homebrew. $ brew install icarus-verilog.
- Install on Ubuntu using aptitude. $ sudo add-apt-repository ppa:team-electronics/ppa.
What is the difference between assertion and checker?
The difference between the two is that CHECK CONSTRAINTS are, in a sense, much “simpler” : they are rules that relate to one single row only, while ASSERTIONs can involve any number of other tables, or any number of other rows in the same table.
What is the difference between Checker and scoreboard?
A Scoreboard is used to keep track of how many transactions were initiated, how many finished and how many are pending and whether a given transaction passed or failed. A checker is used to check whether a given transaction has taken place correctly .
What is difference between scoreboard and checker?
Generally, checker is a verification component that monitors transactions or checks for assertions/functional coverage or compares output. Scoreboard is a specific instance of a checker. In UVM, the function of checker is done by either a monitor or an agent/scoreboard subscriber.
What is testbench in Verilog?
A conventional Verilog® test bench, or a VHDL® test bench, is a code module that uses hardware description languages (HDL) to describe the stimulus to a logic design and check whether the design’s outputs match its specification.
What is EDA tool in VLSI?
EDA is an abbreviation for electronic design automation. It is a software application that is used to develop electronic circuits. To ease the designing of integrated circuits on a large scale, companies use EDA tools.
How Verilog code is executed?
A nonblocking assignment executes in two steps. First, it samples the values of the right-side variables. Then it updates the values to the left-side variables. The sampling step of a nonblocking assignment is an active event and thus is executed at the moment the nonblocking statement is encountered.
Is Soft assert and verify same?
In the case of the “Assert” command, as soon as the validation fails the execution of that particular test method is stopped. Following that the test method is marked as failed. Whereas, in the case of “Verify”, the test method continues execution even after the failure of an assertion statement.
When to Use assert and verify?
Assert: If the assert condition is true then the program control will execute the next test step but if the condition is false, the execution will stop and further test step will not be executed. whereas, Verify: There won’t be any halt in the test execution even though the verify condition is true or false.
What is the use of RAL in UVM?
UVM RAL is an object-oriented model for registers inside the design. To access these design registers, UVM RAL provides ready-made base classes and APIs….UVM RAL Model: Usage and Application.
| Sequence name | Functionality |
|---|---|
| uvm_mem_walk_seq | Writes walking pattern into each of the memory location and compares it with the read value. |
What is polymorphism in Systemverilog?
Polymorphism is an object-oriented programming language feature that allows a specific routine to use variables of different types at different times. Polymorphism in SystemVerilog is the ability for the same code to behave differently depending on the kind of Object with which it is dealing.
What is TLM in UVM?
Transaction Level Modeling, is a modeling style for building highly abstract models of components and systems. In this scheme, data is represented as transactions (class objects that contain random, protocol specific information) which flow in and out of different components via special ports called TLM interfaces.
What is DUT in SV?
What is DUT? DUT stands for Design Under Test and is the hardware design written in Verilog or VHDL. DUT is a term typically used in post validation of the silicon once the chip is fabricated. In pre validation, it is also called as Design Under Verification, DUV in short.