uvm:8.3.3 Heavy-duty component

1. Normal_sequence is still used as a default_sequence. To create a CRC error case, redefine driver:

2. Reload in Build_phase:

1) for particularly abnormal test cases, the use of sequence is very cumbersome, the overloaded driver will demonstrate the advantages.

3.scoreboard and reference models can also be overloaded. Especially for reference models, handling exceptions is quite time consuming. If all exceptions are implemented with a reference model, the reference Model code size is very large. If the dispersion is dozens of models, each one handles one situation. Makes the code clear and has increased readability.

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

uvm:8.3.3 Heavy-duty component