UVM Coding Practice · Senior

Grab, Lock & Ungrab

Exclusive sequencer access for virtual sequences.

Interview prompt

When do you grab a sequencer? Sketch grab/ungrab in virtual seq.

diagram

WHITEBOARD CHAIN

1. DECLARE    interfaces / types / ports you need
2. SKELETON   class extends + utils macro + key methods
3. MECHANISM  fill one critical method while narrating
4. PITFALL    name one bug juniors make on this pattern
5. TEST       how you would smoke-test the component

grab before layered traffic
ungrab in post_body
avoid nested grab deadlock

Common pitfalls

Forgot ungrab.
Two virtual seqs grab same sqr.

Practice this lesson