Peeling a Scope: The Layers of PyVISA
One line of Python sets a scope to 500 mV/div. Here’s every layer it passes through, from the PyVISA class hierarchy down to USB permissions on a PYNQ board.
Blog posts
Guides, course write-ups, and the occasional story. 11 posts so far.
Nothing with this tag yet.
2026
Elmore Delay Analysis
18-4/622 Recitation 01: a step-by-step walkthrough of Elmore delay on a midterm problem, from switch-level RC models to wire pi-models.
Simon's Rock: Now & Then
In memory of my dead school
2025
Understanding Hazards
Fundies Hazards Guide
42030青春版--一套刚刚好的乐高
42209 浅浅的评测
Embedded Project: CircuitSim
A walkthrough of our Embedded final project: Circuit Simulator on FPGA
Demystifying Cache---From Bytes to Tags
Breaking down cache address bits is tricky. In this guide, we’ll step through in detail how to partition a 32-bit address and work through some problems to test your u...
So What Is Carry Look Ahead
Someone asked me about carry lookahead during OH, and I felt that I didn’t explain it well enough. Here’s a better attempt:
FPGA Button UI
Embedded lab 1: code an FPGA to test the Collatz Conjecture over a range of numbers… with a user interface of buttons and switches
Coping with Oscilloscope Signals
A simple method to smoothen DC data. Worked perfectly for gate transfer curves.
2024
Columbia Fall 24 Recap
A few thoughts on the past semester. This is by no means a comprehensive review.
