PX2816B Protocol Exerciser

A logic analyzer tells you what happened on a bus; the PX2816B decides what happens on it. Instead of capturing traffic passively, it actively drives and responds on I3C, I2C, and UART — including deliberately malformed frames, out-of-spec timing, and dropped acknowledgements — so a target device's error handling gets tested against conditions a compliant host would never generate on its own.

Why engineers reach for it

• Error injection on I3C, I2C, and UART traffic — malformed frames, bad parity, timing violations, missing ACKs — lets you validate a target's error-recovery path instead of only ever testing the happy path a real host controller produces
• A dedicated compliance test mode runs a target against known protocol edge cases in a repeatable sequence, rather than relying on a QA engineer to reconstruct the same fault by hand each time
• An automation API puts exerciser sequences under script control, so the same fault-injection scenarios that ran once on a bench can be folded into a regression suite
• I3C support in particular fills a gap for teams validating I3C target silicon or firmware, where good tooling for the controller side is common but tooling that deliberately misbehaves is not

Where it earns its keep

• Pre-silicon and post-silicon validation of I3C or I2C target devices — proving the error-handling state machine actually does what the datasheet claims under a bad bus condition, not just under a clean one
• Production test lines that need a scriptable, repeatable way to exercise a UART or I2C interface without a full host system attached
• Interoperability testing ahead of a compliance submission, where "does it survive a hostile host" is as important a question as "does it work with a well-behaved one"

Specs vary by the protocol option modules fitted — tell us which interface and fault conditions you need to test and we'll confirm exact coverage.