Two wires. That is all I3C gives you. Two wires carrying a clock and a data stream, the same physical interface engineers have been probing since I2C arrived in 1982. Open a capture and the waveform looks familiar. The muscle memory from a decade of I2C debug kicks in before the conscious mind catches up. […]
There’s a particular kind of engineering post-mortem that nobody wants to sit through. The one where a device passed every single lab test, shipped to a customer, and then failed in a way nobody anticipated. When you tested it, the traffic looked clean, the enumeration worked, and your reads and writes completed without a single […]
Somewhere on your PCIe bus, a device announced itself. It sent an ID. It claimed a vendor. It asked to be trusted. And your system, without question, without verification, even said yes. That approach made sense for a long time. Components came from known vendors, supply chains were shorter, and the threat model stopped at […]
I3C vs I2C: What Actually Changed and Why Engineers Are Making the Switch Most embedded engineers have lived through this. You’re twelve sensors deep into a design, the bus is clean, and everything communicates well. But then you add one more device and discover it shares a static address with something already on the board. […]
Inside every modern electronic device, there is a protocol running, and most people have never even heard of it. This protocol does it all. It moves data between chips; it keeps the sensors talking to the processors. It has been doing all those things reliably since 1982. That protocol is the I2C. However, after more […]
There is a particular kind of silence that every hardware engineer dreads. Not the silence before a presentation or before a code review. The silence after you apply power to a new board for the first time, and the device doesn’t respond. The bus is quiet. The enumeration never happens. We’ve been in that room […]
There’s a particular kind of engineering post-mortem that nobody wants to sit through. The one where a device passed every single lab test, shipped to a customer, and then failed in a way nobody anticipated. When you tested it, the traffic looked clean, the enumeration worked, and your reads and writes completed without a single […]
MCTP standardizes how management messages are structured and addressed. I3C provides the physical transport that carries them. When they’re combined, engineers deal with two initialization sequences, two addressing schemes, and failure modes that span both layers simultaneously. And when something goes wrong, the symptom at the top gives you almost nothing to work with. A […]
Modern infrastructure is getting harder to manage. AI servers pack hundreds of monitored components into a single rack. DDR5 memory modules now regulate their own power and report their own temperature. CXL systems connect memory and compute across devices that weren’t connected at boot. Managing all of it requires an interface that can scale with […]
In the short decade that I3C has existed, it has overhauled microchip communications. And with increased adoption of I3C around the world, debugging and validation have become more and more important for engineers. Although many I3C protocol analyzers and exercisers are available in the market, making the right choice can be confusing. If you are […]
