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mos_8502 :verified: /
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2024-06-15 02:56:18

mos_8502 :verified: on Nostr: Fuck's sake. I figured out what was making the Sentinel 65X prototype crash ...

Fuck's sake.

I figured out what was making the Sentinel 65X prototype crash *sometimes* when you start it up.

The VERA isn't futzing with the bus at boot time. It's just drawing as much power as it needs.

This is not a problem -- unless your AC adapter is inadequate. It was pulling *just* enough to *sometimes* make the CPU go fucky.

I proved this by removing the delays and replacing the 9V 1A adapter with a big honking 12V 5A one from a dead 3D printer, which is way beyond what the regulators can even draw. No more crashes.

Lesson learned I guess -- you probably want more than 9V 1A -- say 9V 2A would probably be fine, but I'll need to test a variety of adapters to confirm that.

#Sentinel65X
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