Robert: When I do: echo BB-W1-P9.12 > $SLOTS I get the following dmesg: [Aug 2 10:25] bone_capemgr bone_capemgr: part_number 'BB-W1-P9.12', version 'N/A' [ +0.000071] bone_capemgr bone_capemgr: slot #7: override [ +0.000042] bone_capemgr bone_capemgr: Using override eeprom data at slot 7 [ +0.000046] bone_capemgr bone_capemgr: slot #7: 'Override Board Name,00A0,Override Manuf,BB-W1-P9.12' [ +0.002030] bone_capemgr bone_capemgr: slot #7: BB-W1-P9.12 conflict P9.12 (#4:univ-emmc) [ +0.008575] bone_capemgr bone_capemgr: slot #7: Failed verification
It looks like something already has P9_12. I've disabled the HDMI (audio and video). What else should I do? --Mark On Sunday, March 6, 2016 at 11:36:23 AM UTC-5, RobertCNelson wrote: > > The link I gave you if for the 8.3 lxqt image.. > > Actually take a look at the example.sh > > You'll probably need to rebuild the bb.org-overlays repo but that's > explained in the eadme.MD.. > > On Mar 6, 2016 10:19 AM, "Ray Madigan" <> wrote: > > > > Thank to both of you, I do appreciate the information. > > > > I have read and implemented several of the instructions that have the > cape manager in /sys/devices/cape_mgr.9/slots to read the temperature and > they work sure enough. The problem is, I have an older Rev B device that > is running the image debian-8.3-ixqt and the device tree is slightly > different. I followed a couple of examples and I couldn't get it to work > so I figured I needed to understand how the mechanism works because > eventually I need to turn on and off some devices via a transistor and just > copying something from the web doesn't tell me what each section of the > device tree does. and how the two versions, different capemgr locations, > are different. > > > > The last example i tried suggested i put the dtbo in /boot/uEnv.txt and > now the bone won't boot, all four led's stay lit so I feel it is time to > stop counting on guess work and hope that what someone writes in a blog > somewhere actually has worked on a recent image and figure out what I am > doing. > > > > Thanks for all of your help. > > > > On Saturday, March 5, 2016 at 6:46:27 PM UTC-8, William Hermans wrote: > >> > >> In addition to what Robert has shown you there . . . the internet is > literally littered with guides, blogs, and random ramblings on getting the > ds18x20 devices working on both the Beaglebone's, and the rPI . . . Heres > one. > >> > >> > http://mkaczanowski.com/one-wire-ds1820-thermometer-with-beaglebone-black-libmicrohttpd/ > > >> > >> On Sat, Mar 5, 2016 at 7:39 PM, Robert Nelson <[email protected]> > wrote: > >>> > >>> > >>> On Mar 5, 2016 8:00 PM, "Ray Madigan" <[email protected]> wrote: > >>> > > >>> > I have been looking for way too long so maybe I don't know what to > search for. > >>> > > >>> > I am attempting to get the ds18B20 temperature sensor working on a > rev b beaglebone black that is running jessie 4.5 that I downloaded from > the official place. I have a beaglebone rev c that uses the capemgr device > tree mechanism and I know how to make that work. I can't seem to find any > reference that will get me started with the no capemgr device tree > implementation. > >>> > > >>> > Can someone point me to a place that will help me figure this out? > Or should I go back to the original angstrom distribution? > >>> > >>> > https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-W1-P9.12-00A0.dts > >>> > >>> > https://github.com/beagleboard/bb.org-overlays/blob/master/examples/BB-W1-P9.12/example.sh > >>> > >>> Regards, > >>> > >>> -- > >>> 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. > >> > >> > > -- > > 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] <javascript:>. > > For more options, visit https://groups.google.com/d/optout. > -- 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/11327a89-0022-43d2-a4aa-c303c396eb28%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
