I am getting back in to hands-on instrumentation and controls after a long, long hiatus and struggling a bit. I have the DS1820 one wire temperature sensor and I'm trying to understand how to get it to work with the BBB. I'm not very experienced with Linux so I think my main struggle is with the device tree and getting all that right with U- Boot (which appears to be new.). Most of what I can fine online refers to the deprecated method and I'd prefer not to use something that is going away for this application. Here are some specific questions...
1. Can a device tree overly file developed for use the old way (with capemgr) be used with U-Boot? 2. If so, where do I place the compiled file so that it is loaded at boot? 3. Do I need to edit anything to make sure it gets loaded? 4. How can I be sure it loaded? 5. How do I call it in Node.js? If I can't use the device tree overlay file developed for the old way, what do I need to do to get this going? I'm trying to use P8_11 as the input from the sensor. One more question - can you recommend a really good resource for learning embedded Linux for absolute beginners? I think I need to get back to the basics and get grounded/re-grounded in this! Thanks for helping this newbie out! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/46c0423d-08f8-4790-b19d-d8d75adf6fa8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
