How do you write a scoreboard in UVM?

How do you write a scoreboard in UVM?

Scoreboard

1. We need 2 import, one for expected packet which is sent by driver and received packet which is coming from receiver.
2. Declare a scoreboard by extending uvm_scoreboard class.
3. Declare the utility macro.
4. Declare a queue which stores the expected packets.

How do you write an UVM driver?

UVM Driver Example A virtual interface handle vif is declared and assigned later in the build_phase(). Real interface object is retrieved from the database directly into a local variable using uvm_config_db::get() method. Get the next data item from sequencer using seq_item_port. get_next_item() in run_phase.

What is the difference between new () and create in UVM?

The create function goes through the UVM factory and checks for registered type or instance overrides. The new function is a SystemVerilog constructor for an object and is called everytime an object is to be created (whether through the factory or not).

How do I run code in EDA playground?

Quick Start

1. Select your language from the Testbench + Design menu.
2. Select your simulator from the Tools & Simulators menu. Using certain simulators will require you to supply additional identifcation information.
3. Type in your code in the testbench and design windows.
4. Click Run.

What is UVM design?

The Universal Verification Methodology (UVM) is a standardized methodology for verifying integrated circuit designs. UVM is derived mainly from the OVM (Open Verification Methodology) which was, to a large part, based on the eRM (e Reuse Methodology) for the e Verification Language developed by Verisity Design in 2001.

How do I connect two monitors to one scoreboard port?

You can follow below steps.

1. declare analysis port inside Master agent monitor. uvm_analysis_port #(seq_item) master_mon2scb;
2. declare analysis port inside Slave agent monitor.
3. declare 2 analysis imp to get monitor transaction inside your scoreboard.
4. connect inside connect phase of your environment.

What are checkers in UVM?

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.

How do I start with UVM?

Start by implementing a very simple UVM testbench with a simple COUNTER DUT or MEMORY DUT. Here is an excellent detailed description of the Minimum UVM Code Templates (of Classes, Methods, Macros) required to implement UVM:

What is DUT with a UVM verification environment?

A super simple DUT with a UVM verification environment to demonstrate how to construct an extensible UVM environment and directory tree. DUT has a single host interface called with a simple protocol that I’ve called “host.” Verification environment has a single agent to drive and monitor the host interface. Built with UVM 1.1d

Is this a complete UVM register design?

This is not a complete design since our purpose is simply to show how registers in this design can be read/written using a UVM register model. All the signals listed as the module ports belong to APB specification.

How does UVM_sequence_item work?

The sequence generates a random stream of input values that will be passed to the driver as a uvm_sequence_item The monitor captures values on the DUT’s input and output pin, creates a packet and sends to the scoreboard