**** BEGIN LOGGING AT Tue Nov 14 03:00:01 2017 Nov 14 06:28:07 what would cause beaglebone.local to not be accessible to ping or ssh after a time (a few hrs?). If I unplug and reconnect the ethernet cable while it's still running, I can get then reconnect to it no prob. Nov 14 07:30:02 sounds odd Nov 14 07:30:07 oh, you left Nov 14 09:41:43 does anyone know how I can see which dtb is used at boot time? Nov 14 09:41:53 I see 4 spi devices in /dev but I don't know where they come from Nov 14 09:42:09 also, HDMI is working but isn't this conflicting with an SPI device? Nov 14 09:42:20 ( 4.9 kernel ) Nov 14 09:45:43 SamVDB: cape-universal is enabled by default these days, which means most peripherals are enabled Nov 14 09:46:06 to actually use them you still need to select pin function using config-pin Nov 14 09:48:03 It's weired though, If I look in spi-max-frequency, I see 16000000 Nov 14 09:48:25 the only place where this can come frome is from am335x-roboticscape.dtsi Nov 14 09:48:47 because that is the only dts I can find which sets this specific clock frequency Nov 14 09:49:01 you're using the robotics cape? Nov 14 09:49:07 no, not at all.. Nov 14 09:49:15 this is a stock image Nov 14 09:49:39 and I'm trying to figure out where these values come from. Didn't do any modifications yet but I'm about to so... Nov 14 09:51:38 check serial console output during boot? Nov 14 09:52:14 yeah... I also thought about that. I have dmesg but it doesn't contain anything from U-boot Nov 14 09:52:36 I don't have access right now to a serial console but will try to check tonight Nov 14 09:52:50 cape-universal defines spi-max-frequency = <16000000>; Nov 14 09:52:59 so that's where it's coming from Nov 14 09:53:11 oow... Nov 14 09:53:23 could you pass me the dts filename? Nov 14 09:54:51 I'm honestly not sure which variant is used under which circumstances Nov 14 09:55:26 https://github.com/cdsteinkuehler/beaglebone-universal-io/blob/master/cape-universal-00A0.dts Nov 14 09:55:34 that's probably old Nov 14 09:55:43 check https://github.com/RobertCNelson/bb.org-overlays/tree/master/src/arm Nov 14 09:55:44 I was looking into the arch/arm/boot/dts folder Nov 14 09:56:06 I'm not sure what the difference is between the cape-univ* files and the univ-* files Nov 14 09:56:14 but I guess this cape-universal is not in linux kernel.. That is why I was confused with the 16MHz Nov 14 09:56:19 thanks for the pointer Nov 14 09:56:29 I'm pretty sure the univ-* ones are newer, so I'm guessing those are used for u-boot overlays Nov 14 09:57:45 oow.. ok.. so I should'nt look at the dts's in bbb linux kernel sources, but rather search in bb.org-overlays repo Nov 14 09:59:19 the base dts files are in the kernel repository (and also in the "dtb-rebuilder" repo, meant to enable easy rebuilding of dtb files) Nov 14 09:59:30 overlays are in the bb.org-overlays repo Nov 14 10:01:06 Aah. And the base dtb's are probably "installed" in /boot/dtbs/4.9.52-ti-r64 Nov 14 10:01:12 and the overlays in /lib/firmware/ Nov 14 10:01:14 ok Nov 14 10:01:48 since I'm only interested in getting spidev0.0 working, I guess I could use BB-SPIDEV0-00A0.dtbo as an overlay Nov 14 10:02:02 or should I then still enable it via cape-universal ? Nov 14 10:03:32 you can use either cape-universal (which is enabled by default), or use a specific overlay like BB-SPIDEV0-00A0 ... the two approaches are mutually exclusive Nov 14 10:04:28 when using cape-universal the peripheral itself is already enabled (you noticed the spidev devices already), you just need to select the pinmux at runtime using config-pin Nov 14 10:05:44 Ok.. I guess its worth for me to investigate this config-pin a bit since I'm not familiar with it Nov 14 10:05:53 Thanks a lot for the help! Appreciate it :) Nov 14 10:06:22 e.g. config-pin P9.17 spi and similar for the other three pins Nov 14 10:07:39 pretty cool! =) Nov 14 10:09:16 I personally prefer to customize the dts, but I understand that most people prefer the simplicity of cape-universal Nov 14 10:11:37 Guys, I am trying to bitbake core-image-minimal for machine="beagle-x15" Do I need to have a boot partition like bbb ? I have tried many times the way of flashing bbb images with x15 but with no success Nov 14 10:11:50 Any advice will be highly appreciated Nov 14 10:13:06 I don't know anything about bitbake, but I'm pretty sure both bbb and x15 support the use of a separate boot partition (FAT), but it's not typically used on either Nov 14 10:13:28 the default images for bbb used to, but that was years ago Nov 14 10:13:57 a bbb image will never work on the x15 though, nor vice versa Nov 14 10:14:15 (different u-boot build) Nov 14 10:21:36 When I specify the machine to beagle-x15, it generates a u-boot image. And, the uboot seems to work but It's not able to load the kernel from the rootfs partition Nov 14 10:23:18 I flashed the rootfs partition using the the generated dd command for the .ext4 file in the deploy dir... to the sdb2 for example which is the other partition for the root .. but it is not working. Nov 14 10:23:48 Very few resources about this board.. Maybe this is the biggest issue Nov 14 10:26:28 I'm not sure what you expect from us, so far you've not really given any real info to go on... it would certainly help to state what kind of image you're building using what, and what the actual error is you're getting from u-boot Nov 14 10:26:58 "it's not able to load the kernel" is just way too vague Nov 14 10:29:00 It stops at "Starting kernel..........." Nov 14 10:29:14 The image is "core-image-minimal" Nov 14 10:29:20 I vaguely recognize the name "bitbake", it's the build tool used by openembedded and yocto I think? if so, you may want to try a yocto-related irc channel (I think #yocto exists) Nov 14 10:29:55 okay, so your vague statement was actually also incorrect, since if it's saying "Starting kernel" then evidently u-boot was able to load the kernel successfully Nov 14 10:31:29 It stays there forever. Nov 14 10:31:47 What you say suggests it was not a booting issue Nov 14 10:31:56 I never said that Nov 14 10:32:14 I'm saying u-boot was able to load the kernel Nov 14 10:32:29 since if it wasn't, then it could not possibly be starting the kernel Nov 14 10:32:50 interesting! Nov 14 10:32:59 Thanks zmatt. That was helful! Nov 14 10:33:24 no further output at that point can be a variety of things... my first suspect would however be a wrong "console" kernel parameter being passed to the kernel Nov 14 10:33:31 resulting in no console output Nov 14 10:37:18 and if you're using yocto, please include that information in your question next time instead of making people guess that Nov 14 10:38:15 I will change the console and see what'd happen. Nov 14 10:38:21 Thanks man ... Nov 14 10:40:38 I think it should be ttyS3 for the x15, but you should probably double-check that Nov 14 16:25:13 Looks like the AM5728 can handle -40 to 90 but does anyone know if the x15 eval board can support industrial application? Nov 14 17:17:46 carbs: am572x parts can have "commercial" (0 to 90) or "extended" (-40 to 105) temperature rating. I don't know for sure but I'd guess the x15 probably uses parts with commercial rating Nov 14 17:18:08 maybe check the schematic or BOM Nov 14 17:18:52 fair enough, i'll take a deep a dive into the BOM, thanks zmatt Nov 15 01:46:09 Some person on Seeed-Studio Hub told me about the Motor Bridge Cape and how on the BBB, uncommenting the video and audio section on our uEnv.txt file works for the MBC. Nov 15 01:46:10 ... Nov 15 01:46:49 Why would me uncommenting the audio and video section on our uEnv.txt file make the Motor Bridge Cape work? Nov 15 01:46:50 ... Nov 15 01:47:06 Would it be b/c of the space contraints or for another reason? Nov 15 01:48:04 <<<< clueless Nov 15 01:49:20 Oh...I get it. Some pins might have been saved for those specific applications, e.g. video for "Whatever" pins and so on. Nov 15 01:54:20 Okay here...I got the Cadence Lite software for viewing files that otherwise would be a hassle to manage. Nov 15 01:54:22 So... Nov 15 01:55:04 How can I use free software to get the BBB schematic for posting references on projects? Nov 15 01:55:14 <<< beat Nov 15 01:57:31 Or what about this... Nov 15 01:57:52 What type of file should I be looking to attain for the photo of the BBB? Nov 15 02:02:27 The .brd file has no-logo attached to it. Nov 15 02:03:05 Is there a way to get this BBB logo Target Board schematic? **** ENDING LOGGING AT Wed Nov 15 03:00:01 2017