Untitled attachment

Notices where this attachment appears

1. Tube🌞Time (tubetime@mastodon.social)'s status on Wednesday, 28-Aug-2024 01:56:05 JST Tube🌞Time

   in reply to

   there is a special signal recorded at track -2. it is the same 1.75MHz but it has short bursts of twice the frequency (2F). this lets the MCU know that (1) it is at track -2, and (2) it lets it synchronize the hall effect sensors.

   you get multiple pulses per revolution, so you need a way to sync up the divider chain so you get an index signal that is repeatable.