Tagged: hardware
2 posts tagged hardware.
-
Chasing a PCIe Ghost on Raspberry Pi 5
How a simple expansion experiment turned into a deep dive through link training, oscilloscopes, kernel patches, and a plan to build my own PCB.
-
Restoring a Roland MT-120: Building an Arduino Floppy Drive Tester
How a failed floppy drive in a Roland MT-120 led to an Arduino-based diagnostic tool for motor control, head stepping, RPM measurement, and Track 0 troubleshooting.