![]() Now, carry and sum outputs in the reference variable can be compared Let us calculate the expected values in carry and sum Copy contents from received packet into a new packet so output has changed for given set of inputs based on expected logic simple adds inputs to give sum and carry, scoreboard helps to check if the The scoreboard is responsible to check data integrity. object and send it to the scoreboard when the transaction valid transaction and if yes, capture info into a class Check forever at every clock edge to see if there is a Mailbox scb_mbx // Mailbox connected to scoreboard captures information into a packet and sends it to the scoreboard the events happening on the interface. The monitor has a virtual interface handle with which it can monitor An adder is combinational logic and does not Different designs require different driver, monitor and scoreboard implementation that depends on design specifics. You can also write Verilog code for testing such simple circuits, but bigger and more complex designs typically require a scalable testbench architecture and this is an example of how to build a scalable testbench. Remember that the goal here is to develop a modular and scalable testbench architecture with all the standard verification components in a testbench. Here is an example of how a SystemVerilog testbench can be constructed to verify functionality of a simple adder. ![]()
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