Thank you for the help. I am trying to use a onewire ds18B20 temperature sensor and I also need to know how to convert the old capemgr dto to work with the universal overlay. Do I just take the fragment@1 piece and put it into a dtsi file and include it in the am335x-boneblack.dts file? Fragment@0 seems to be managed by am335x-boneblack.dts.
Then I don't even know if the onewire driver is supported in the new kernel. On Thursday, March 19, 2015 at 8:47:35 AM UTC-7, Graham wrote: > Ray: > Which release/kernel are you running? > > You will need to download the correct dtb-rebuilder for that version > kernel. > > Then, go inside the src (source) folder and start with > am335x-boneblack.dts and follow > the listing, including following and reading any #includes, until you find > the file that > manages the pin in question. Un comment the statement that will put it in > the mode > that you want. The "universal-io" has been rolled into this dtb-rebuilder > source. > You do not have to go to "universal-io" separately. You will know it when > you find > the file. > > The only warning I would offer, is that to be sure that if the pin is > currently in use > for some default mode, you need to find that, too, and comment it out. If > the pin > is assigned to do two modes, the compiler will complain. > > Once you have a clean "make", check to see that the resulting ".dtb" is > where it is > supposed to be, then edit the dtb= statement in the uEnv.txt file. > > --- Graham > > == > > On Thursday, March 19, 2015 at 10:16:15 AM UTC-5, Ray Madigan wrote: >> >> Thanks Dave, I appreciate your help. >> >> I have read that post and the issue is, it uses the capemgr overlay and >> the image I have doesn't have the capemgr. >> >> On Thursday, March 19, 2015 at 1:25:29 AM UTC-7, Dave Blomfield wrote: >>> >>> Hi Ray, >>> >>> This one worked for me, there are a couple of errors in the DTS code >>> which are mentioned in the posts below the main instructions but other than >>> that it works fine. I have 10 sensors working on the same pin returning >>> temperature. >>> >>> >>> http://www.bonebrews.com/temperature-monitoring-with-the-ds18b20-on-a-beaglebone-black/ >>> >>> Cheers >>> >>> Dave >>> >>> >>> On Tuesday, 17 March 2015 22:59:37 UTC, Ray Madigan wrote: >>>> >>>> I have been trying to figure out how to get a single gpio pin to work >>>> with my ds18b20 onewire device. I have installed dtb-rebuilder and looked >>>> at the device tree definitions in am335x-boneblack.dts and I get the idea >>>> that I can comment different sections to get the specific sets of pins to >>>> work. I have an old dts file, from 9 months ago or so, but I don't see >>>> how >>>> it fits in with universal-io. >>>> >>>> It seems like I need a file xxx.dtsi, and they don't look like the dts >>>> files. How do I figure this 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]. For more options, visit https://groups.google.com/d/optout.
