On 8/4/17 09:26, Paul Koning wrote: >> So my question is: do industrial SD cards exist? > Yes; we've been using them for years now in the products I work on. While > you can still wear them out if you beat on them hard enough, they do have > good reliability.
Okay, that's good news then. Any suggestions on what to look for when looking for these SD cards? That is, how to reliably distinguish them from consumer grade? > If you have a ready-made SD interface, these cards work nicely. If you need > to build one from scratch it gets tricky, because the interface is fairly > high speed serial (packet based) signaling, and the initialization sequence > before you can do any I/O is fairly convoluted. It is reasonably well > documented in the SD standard, but still, it takes a while to get all the > code working. BTDT. Yeah, I'm in the middle of figuring all that out. I got it running through the initialization sequence (as far as I can tell) and as soon as I get home from my summer job I'll start working on doing data transfers. Dave
