The Apple II's CPU clock has jitter or a glitch. This issue is not new-it has been present since its original design in 1977! Bald Engineer uses an oscilloscope to show how often the glitch occurs and how to correlate that jitter to its source-which is useful when you are not testing 40-year-old devices.
The device under test (DUT) in this video is the Mega IIe project. It's a fully compatible Apple IIe built around the Mega II chip.
Watch the Mega IIe video here: • Mega IIe: First Fully ...
Related Links: www.addohms.co...
#appleii #electronics #oscilloscope
Chapters
00:00 Stretch, Glitch, Jitter
00:28 Apple II Clocks
02:44 Analog Video Signals
04:26 Clock and Video Means Jitter
06:20 kthxbai
Patreon: / baldengineer
Discord: bald.ee/discord
Instagram: / baldengineer
X: X.com/addohms
Workbench Wednesdays: bald.ee/wbw
Video produced by James Lewis (@baldengineer):
baldengineer.com
Негізгі бет Uncovering the Apple II's Mysterious (and Intentional) Clock Glitch
No video
Пікірлер: 54