3 ms·
They also enable things like resettable fuses in a car (ie Tesla) such that you don't need to have some dumb fuse in the fusebox blow and then waste money/time
by nebula8804 2y ago
They also enable things like resettable fuses in a car (ie Tesla) such that you don't need to have some dumb fuse in the fusebox blow and then waste money/time buying replacements. Instead make them software resettable after a fault has been resolved and now you have eliminated a cost and made the system more efficient.
- EvanAnderson 2y agoI don't think we're talking about the same kind of eFuses. The ones I'm talking about don't serve a current-limiting function like a traditional fuse. They're features on chips to allow for non-volatile storage of a limited number of bits that, once blown, cannot be reset.
- Chihuahua0633 2y agoAKA how the Nintendo Switch prevents firmware downgrades - https://medium.com/hackernoon/how-the-nintendo-switch-prevents-downgrades-by-irreparably-blowing-its-own-fuses-884bd3b7a8ba https://medium.com/hackernoon/how-the-nintendo-switch-preven...
- nebula8804 2y agoYes I know about eFuses, they were used on the Xbox 360 console as well. As far as I know, they are similar types of eFuses on the Tesla that are capable of changing their state via firmware instead of one time blow (different application) but I could be wrong. Its just in this case the thing being controlled is not a checksum for what firmware can be installed, but a checksum to confirm if current should flow to a specific path. [1]: https://youtu.be/Hl1zEzVUV7w?t=3874 https://youtu.be/Hl1zEzVUV7w?t=3874