A deep dive into PCIe

Shane Colton digs into the PCIe PC bus specification and testing in the latest blog post:

Something I found interesting about PCIe in general is that there seems to be a pretty large barrier built up around the black box. Even just finding learning resources is much harder than it should be. The best I found was PCI Express Technology 3.0 and some accompanying material by MindShare, but even that seems like a prose wrapper on top of the specification. There isn’t anything that I would consider a beginner’s guide, like you might find for USB or Ethernet.

This is a used U4301B that I got in what has to be my second-best eBay score of all time, for less than it would have cost me to rent one for a month. There are only ever a handful of them up for auction at any given time, and the market is so small that the price is basically random, so if you’re actually looking for one I can only wish you luck.

… for now I have Gen3 protocol analysis capability, which is good enough for my purposes. I’ve used it a bunch in the past few months to explore the different layers of the PCIe stack and components within.

Read more here.


Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 38,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 11/15/2024 Featuring Adafruit bq25185 USB / DC / Solar Charger with 3.3V Buck Board! (Video)

Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: A New Arduino MicroPython Package Manager, How-Tos and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

Adafruit IoT Monthly — The 2024 Recap Issue!

Maker Business – Adafruit Daily — Apple to build another chip at TSMC Arizona

Electronics – Adafruit Daily — SMT Tip – Stop moving around!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !


No Comments

No comments yet.

Sorry, the comment form is closed at this time.