pixo_replacement
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Table of Contents
Raspberry Pi XO Replacement
Notable Test Points
PP3 GND PP4 GND PP5 GND PP6 GND PP7 5V after polyfuse PP8 3V3 PP9 1V8
Pi 3 B v1.2 Stock XO
Marked AEL19.2
New TCXO
Test Cases
Before I do this swap, I need to get a benchmark of (at least) two identical Pis so I have a baseline of their performance in stock configuration. These systems need to be as identical as possible, both in terms of software load out as well as their physical deployment.
Software
- OS - Alpine Linux 3.17
- Timekeeping/measurement - chrony
Configured to be as light and slim as possible.
Physical
Power
Meanwell 5v PSU powering both Pis. Either back-fed through the 5v pin on the 40pin header, or spliced miniUSB connectors/cables. Through the regulator.
pixo_replacement.1678469991.txt.gz ยท Last modified: 2024/11/14 02:30 (external edit)