Which ARM Microcontrollers are embedded in current SD Cards? The Motorola 8051 tends to get mentioned in this connection, with occasional, vague references to ARM. So, which specific ARM technologies are used for this purpose, and what kind of embedded OS do they use? Linux has been mentioned in this connection; do ARM SD implementations use it? If so, which disto(s)?
That's quite some little sketch, Alban! It does show the capabilities of the -M4 in this context, and it's tempting to think of it as a bit of a steamroller. The thing is, though, that the SD wallnuts are getting bigger and tougher all the time. The latest, high-quality 128GB versions retail at up to £90-plus hereabouts; that's SSD territoty, and the cost of an -M4 chip can easily be absorbed in those numbers. And, if Dave Hughes and his people are using them, then there's obviously a market out there. Here's a terrifying thought; the theoretical maximum capacity for an SD Card is 2TB......