**** BEGIN LOGGING AT Sat Apr 23 02:59:58 2016 Apr 23 03:00:15 Beaglebone Black Dev C by Debian Apr 23 03:01:15 the connection can expire, it's better to use the ethernet port Apr 23 03:01:28 can you have windows 'fix' the network connection to the BBB? Apr 23 03:01:45 i actually have never tried this on windows Apr 23 03:02:08 if that doesn't work, what happens if you reboot the BBB? Apr 23 03:02:56 I have no problem to reboot.. How can I do this? Apr 23 03:03:36 unplug the usb cable and put it back in Apr 23 03:04:02 there is a reset switch too but it does about the same thing Apr 23 03:04:34 i'm concerned that he said that the LEDs are solid lights. if you didn't turn the heartbeat off, you shoudl see a heartbeat Apr 23 03:05:14 doesn't work dsockwell =( Apr 23 03:05:29 ayjay.. yes.. D0 and D1 are solid lights Apr 23 03:05:43 are you booting from an sd card or the internal flash? Apr 23 03:05:44 D2 and D3 are off Apr 23 03:06:04 did you flash the image urself? Apr 23 03:07:06 try writing an sd card, following the guide carefully Apr 23 03:07:09 and boot from that Apr 23 03:07:14 dsockwell: I've never tried to boot.. Now I was preparing a SD card to install Ubuntu into the BBB, but I needed access to tightVNC Apr 23 03:07:54 like partitioning and formatting? Apr 23 03:08:01 maybe you have erased something important Apr 23 03:08:33 the onboard flash looks a lot like an sd card to linux Apr 23 03:08:58 But I never work into BBB.. I've prepared the SD card un a Virtual machine Apr 23 03:09:01 oh Apr 23 03:09:17 when I was getting started with the BBB, I had to reflash the BBB 10X Apr 23 03:09:21 i kept on breaking the kernel Apr 23 03:09:31 and i always i needed to reflash the image Apr 23 03:09:38 http://beagleboard.org/latest-images Apr 23 03:09:46 eventually I just learned to work with one of these Apr 23 03:09:58 because I had the same problem Apr 23 03:10:02 haha it's inevitable Apr 23 03:10:22 and frankly the BBB should ship with an SD card Apr 23 03:10:28 ayjay: I wouldn't call it a lib just yet... http://pastebin.com/2HFPreTT Apr 23 03:10:43 Can I boot the BBB withouth a LCD? I dont have HDMI wire Apr 23 03:10:45 the BBB should ship with just enough marbles to download an image and flash it to an sd card Apr 23 03:10:49 yes Apr 23 03:10:51 SD card? I've almost never used that slot Apr 23 03:10:53 it can boot with only power Apr 23 03:11:05 I generally flash via usb Apr 23 03:11:17 zmatt: i was just looking for a tutorial on that Apr 23 03:11:25 this one said that you need a USB harddrive Apr 23 03:11:28 http://pastebin.com/x5QzB18E Apr 23 03:11:35 this makes the BBB appear as mass storage device Apr 23 03:11:49 the entire flash drive? Apr 23 03:12:02 chip* Apr 23 03:12:24 that is a cool trick but i think the sd card method is more accessible Apr 23 03:12:26 http://gerbil.xs4all.nl/flash-images.html <-- transcript where I discuss it in more detail Apr 23 03:12:38 dsockwell: yes, usb flashing needs to be made more user-friendly Apr 23 03:13:22 dsockwell: how can I flashing by Sd Card? I have a Sd card with Ubuntu Image Apr 23 03:13:33 https://beagleboard.org/getting-started#update Apr 23 03:13:46 those are the instructions for windows Apr 23 03:13:49 on linux i would use dd Apr 23 03:14:22 dsockwell, thanks :) Apr 23 03:14:36 veremit: it works! Apr 23 03:15:49 I will try now Apr 23 03:19:38 dsockwell: Apr 23 03:20:00 yes? Apr 23 03:20:10 dsockwell: I have a sd card with a Ubuntu.. Can I use this Sd Card without a LCD screen? Apr 23 03:20:38 To flashing by ubuntu Apr 23 03:20:40 you don't need any extra hardware besides maybe the sd card Apr 23 03:21:11 but there is no ubuntu image, the ones you should be using first are Debian. Apr 23 03:21:18 wait, is there an Ubuntu image? Apr 23 03:22:21 EverKdaver: I have only used the Debian images from http://beagleboard.org/latest-images and those are what you should use, too. Apr 23 03:22:32 Download one and copy it to the sd card. Apr 23 03:23:40 Maybe I did not know how to explain. I want to install Ubuntu Trusty. I have the image created on a sd card. I can boot directly from the SD card without an LCD screen? I read that you have to enter a password. Apr 23 03:24:11 It simply does not work that way. Apr 23 03:24:19 What file did you write to the sd card? Apr 23 03:25:14 http://www.armhf.com/boards/beaglebone-black/#wheezy Apr 23 03:25:32 dsockwell: Check this.. There are Ubuntu Trusty Apr 23 03:25:42 oh Apr 23 03:25:54 If it is like the Debian images, you should be able to access it by ssh Apr 23 03:28:01 I can't connect to BBB IP.. I need to repair this first jajaja Apr 23 03:28:01 If you don't have a windows ssh client, mobaxterm is pretty good Apr 23 03:28:02 dsockwell: I think EverKdaver should probably stick with the debian link you provided Apr 23 03:28:10 that's a great idea Apr 23 03:28:34 dsockwell: that will give them a good starting point to learn about the BBB and they'll probably understand themselves why what they're trying to do wont work Apr 23 03:28:49 EverKdaver: the images provided by the beaglebone company are setup specifically for network over USB Apr 23 03:28:58 EverKdaver: I can help you more after you write this file to your SD card: https://debian.beagleboard.org/images/bone-debian-8.3-lxqt-4gb-armhf-2016-01-24-4gb.img.xz Apr 23 03:29:22 EverKdaver: i would assume that the image you are trying to load is not configured for that and you'll need to use a serial connection Apr 23 03:29:33 really, though, I am going to sleep and ayjay will have to help you Apr 23 03:29:38 good night Apr 23 03:29:43 hahaha i think we've done verything we can do! Apr 23 03:30:07 Good night dsockwell Apr 23 03:30:10 Thanks for all Apr 23 03:31:16 EverKdaver: you shoudl use the debian image Apr 23 03:31:30 EverKdaver: it will make your life easier Apr 23 03:32:39 ayjay I'm downloading this Apr 23 03:32:40 :D Apr 23 03:33:19 so you need to unzip it first, then you should write the .img to a sd card, and then boot from it Apr 23 03:33:44 until you are comfortable with the BBB i would keep that sd card with that img, because I had to do this many times Apr 23 03:33:49 i kept on breaking linux Apr 23 03:34:35 jajaja Apr 23 03:34:37 I see that Apr 23 03:34:40 thanks Apr 23 03:36:25 still downloading =( Apr 23 03:37:03 ayjay Apr 23 03:37:05 no it's not a quick process.. download....write....write again Apr 23 03:37:26 thats why you should keep it on the card once you have it Apr 23 03:37:45 yes Apr 23 03:37:49 I will do Apr 23 03:37:56 you can tell it works good because it takes so long Apr 23 03:38:20 :) Apr 23 03:38:51 haha i thought you were asleep? Apr 23 03:39:13 that would be too simple Apr 23 03:39:29 I have a Beaglebone Black Dev B and Dev C, and also I have a 4,3" LCD cape, but this works only un BBB Dev B Apr 23 03:39:31 =( Apr 23 03:40:19 dsockwell: you're back Apr 23 03:41:01 wow two bbb Apr 23 03:41:58 but why the LCD cape only works in BBB Dev B? Apr 23 03:42:45 sorry I can't help you with that Apr 23 03:42:49 it's because you didn't use the debian image Apr 23 03:43:47 and dsockwell drops the mic Apr 23 03:43:53 dsockwell: well.. Dev B have Angstrom and Dev C Debian Apr 23 03:44:34 EverKdaver what is your native language? Apr 23 03:45:28 ayjay Spanish.. Sorry.. I'm learning English :D Apr 23 03:46:04 ohhh yo estudie espanol en la antigua guatemala Apr 23 03:46:46 pero me keyboard no tiene accents hahaha Apr 23 03:47:01 wow that was bad Apr 23 03:47:04 i need to refresh Apr 23 03:47:15 have tres annos... Apr 23 03:47:16 hace* Apr 23 03:48:12 jajajajaja Apr 23 03:48:33 ayjay.. you tried Apr 23 03:48:59 latin or castillo? Apr 23 03:49:15 i mean latin or spain spanish Apr 23 03:49:28 latin Apr 23 03:50:18 es mejor.... Apr 23 03:50:57 now i'm excited Apr 23 03:50:59 jajaja where u from? Apr 23 03:51:02 connecticut usa Apr 23 03:51:20 ooh great Apr 23 03:54:41 es mas dificil para usar BBB si usted ? aprendido ingles porque los documentos son en ingles Apr 23 03:55:02 but if you can tolerate my broken spanish i will help you with your BBB Apr 23 03:55:57 ayjay, no problem to talk in english.. I need to learn this lenguage Apr 23 03:56:54 and yes.. Are few the documents that are written in spanish Apr 23 03:57:06 Even the documents in English are scattered Apr 23 03:57:26 jajaja Apr 23 03:57:37 but i want to speak in spanish sometimes, because i love it Apr 23 03:57:44 it makes me really happy Apr 23 03:58:12 I found a excellent book mmm Mastering Beaglebone Robotics Apr 23 03:58:21 if you want we talk in spanish Apr 23 03:59:46 has been finished the written process in the sd card.. I hope this works Apr 23 04:01:27 do you want me to help your english? Apr 23 04:03:54 good :) Apr 23 04:04:08 ey!! How to know when the process is finished? Apr 23 04:05:01 everything is lit- nothing is blinking Apr 23 04:05:45 now the lights are "dancing" Apr 23 04:06:16 but I think that this process will take 30 minutes more or less Apr 23 04:06:38 yes or no? Apr 23 04:06:40 :D Apr 23 04:07:10 that is correct Apr 23 04:07:16 but it's a good sign Apr 23 04:10:01 sorry but what do you mean "lit - nothing"? It's mean lights off? Apr 23 04:10:14 oooh yes Apr 23 04:10:21 I understood Apr 23 04:13:27 if its not dancing its done Apr 23 04:13:57 gracias =) Apr 23 04:42:49 =P Apr 23 05:12:54 what happened EverKdaver Apr 23 05:42:43 http://pastebin.com/yfARyTZx ... the uio wrapper is starting to get user friendlier Apr 23 05:45:10 though I guess I'll need to make some metaclass to be able to declare peripherals in some genuinely nice way Apr 23 05:46:31 holy shit i need comments Apr 23 05:46:49 hey, I actually added *some* Apr 23 05:47:07 UIO SHIZZLE Apr 23 05:47:11 besides, I have no idea what I'm doing either, I'm a python n00b Apr 23 05:47:34 like, the way I format the output on line 64... christ there's gotto be a better way Apr 23 05:48:05 UioMap vs Uio? Apr 23 05:48:40 the former is only used internally in the Uio class Apr 23 05:48:54 the map is the atomic unit Apr 23 05:49:02 an uio device can define zero or more memory mapped ranges Apr 23 05:49:16 in my test case it defines two of 'em Apr 23 05:49:18 oh so you cna manage a logic unit with multiple mappings Apr 23 05:51:53 http://pastebin.com/nf8gffh1 corresponding device tree fragment Apr 23 05:52:14 holy crap i'm trying to digest this because it's fun and useful but python... Apr 23 05:52:41 I usually use C++, but apparently python is generally considered less scary :P Apr 23 05:52:57 hence my idea to do this in python to make it more accessible Apr 23 05:53:16 give me some credit- the more languages the better Apr 23 05:53:21 of course the Uio class needs to be swept into some file where people don't need to look at it Apr 23 05:53:54 does the uio class use the uio driver? Apr 23 05:54:27 yes, uio_pdrv_genirq Apr 23 05:55:11 http://pastebin.com/GrHwgYiR <-- this shows all ingredients for making a peripheral appear as uio device Apr 23 05:55:44 you've actually shown me this before Apr 23 05:55:54 i was trying to mmap adc registers and was getting bus errors Apr 23 05:56:06 and you were like "no no, uio is the way" Apr 23 05:56:18 you tried via /dev/mem you mean? Apr 23 05:56:25 ewwwwwwwwwwwwwww Apr 23 05:56:27 write a proper driver Apr 23 05:56:35 stop trying to circumvent the kernel Apr 23 05:56:47 yes thats write zmatt Apr 23 05:56:52 shh ds2 you'll understand Apr 23 05:57:02 ds2: why would I write the same code in a more hostile environment where bugs can take down the whole system instead of just 1 process Apr 23 05:57:27 ayjay: you probably got a bus error because the adc wasn't enabled Apr 23 05:57:34 zmatt nope Apr 23 05:57:37 zmatt: hmmm I'd see it entirely the opposite Apr 23 05:57:48 if that's the, no point in using Linux Apr 23 05:57:50 zmatt i was just not using the device tree properly Apr 23 05:57:54 ds2: we've been through this before, let's agree to disagree Apr 23 05:57:58 zmatt: :D Apr 23 05:58:00 zmatt okay that could be the same thign Apr 23 05:58:34 ds2 you mean you want to restrict access of high level programmers to the registers Apr 23 05:58:37 ds2 and physical memory Apr 23 05:59:15 the whole point of using an OS is so things are properly isolated Apr 23 05:59:21 direct access is wrong Apr 23 05:59:23 ds2: yeah I mean what good is linxu anyway, apart from getting a filesystem, virtual memory, preemptive multitasking, a networking stack, and a programming environment in which my colleages can write their nodejs crap Apr 23 05:59:36 :) Apr 23 05:59:59 ds2: exactly, which is why I want this in a process which has isolated access rather than the kernel which can fuck with anything and everything Apr 23 06:00:21 zmatt: let's stick to HW topics Apr 23 06:00:49 the kernel is the TCB, less code there is better Apr 23 06:01:27 can i propose that what zmatt is doing is important from an educational perspective? Apr 23 06:01:35 though unlike the typical argument in favor of a microkernel, in this specific case moving code out of the kernel actually also improves performance Apr 23 06:02:06 faster + easier to write + less chance of crashing the system = triple win Apr 23 06:03:14 ayjay: anyhow, back to topic... since I had no idea what would happen if I'd try to use python for this I chose the most hostile register space I know of as testing ground Apr 23 06:03:34 zmatt: can you move over to git? Apr 23 06:03:39 i'd like to contribute Apr 23 06:03:51 it doesn't have any entry in the default DT yet, hence I needed to add it ( http://pastebin.com/nf8gffh1 ) Apr 23 06:04:04 and the test worked :D Apr 23 06:05:39 doing m[0:4] on the mmap object itself actually worked directly, but the mmap object doesn't directly support writeable slices, hence I made a memoryview of it Apr 23 06:06:44 memoryviews however I noticed do need to be cast to an u32 array (that's the .cast('I')), otherwise it'll do byte access Apr 23 06:07:15 and eh, yeah I guess I can make a git repo Apr 23 06:07:22 whats a word Apr 23 06:07:25 i mean in this context Apr 23 06:07:37 sorry i'm catching up, i lost track of this during the semester Apr 23 06:07:51 "word" on ARM, PowerPC, and pretty much any modern processor without x86-heritage means 32-bit Apr 23 06:08:06 oh so the memoryview is matched thats nice Apr 23 06:09:07 yeah I can actually just safely print(list(fc_top)) to dump all registers of that thing, though in decimal which isn't very readable Apr 23 06:11:01 true Apr 23 06:11:12 easily solvable Apr 23 06:11:28 esp. in python Apr 23 06:12:40 of course it would be nicer to be able to declare the fields and then access them by name... Apr 23 06:13:15 zmatt you and i have the same mind Apr 23 06:14:03 BUT i want to help students explore the processor via a gui and use UIO to manipulate it and understand how it works Apr 23 06:16:29 yeah there are quite a few peripherals which are perfectly safe to play with Apr 23 06:17:30 perfectly safe is a tall older Apr 23 06:17:32 order* Apr 23 06:17:45 are there any peripherals that can brick the board? Apr 23 06:18:21 because if a student needs to re-flash their board, thats a valuable learning experience Apr 23 06:18:34 control module, but it ignores unprivileged writes anyway Apr 23 06:18:47 heh, that's not a plausible scenario though Apr 23 06:18:48 ayjay its no result =( Apr 23 06:19:03 EverKdaver: did you the image flash go as expected? Apr 23 06:19:35 zmatt: it's okay, these are engineering students, so they are responsible for following instructions Apr 23 06:19:58 basically you have "nothing can go wrong" peripherals, "might need to press reset button if it gets confused" peripherals, and "hardware damage if you make a mistake" peripherals Apr 23 06:20:18 it's the third group that needs to be inpspected Apr 23 06:20:31 yeah, control module is one of them but it ignores unprivileged writes anyway Apr 23 06:20:45 i figured the power logical might propose an issue Apr 23 06:21:39 ayjay: how long can the process take? It's been two hours and still not end Apr 23 06:21:45 i2c0 is also something to stay away from since the PMIC lives there, it's in use by the kernel anyhow Apr 23 06:21:54 EverKdaver: 10-20 minutes Apr 23 06:22:08 EverKdaver: what are the leds doing? Apr 23 06:22:41 ayjay: prcm also has a few creepy registers Apr 23 06:23:01 D0 and D1 are blinking Apr 23 06:23:07 I'll disconnect and start again Apr 23 06:23:15 you're running a system, not a flasher Apr 23 06:23:18 did you flash the correct image? Apr 23 06:23:41 ohh zmatt do you think you need to go into boot.txt or w/e and uncomment the correct line? Apr 23 06:23:46 ayjay: instalé la imagen que me pasaste Apr 23 06:23:55 ayjay: no, not if you got a flasher image Apr 23 06:24:03 ayjay: I installed the image that you passed me Apr 23 06:24:09 no i understood Apr 23 06:24:21 but i didn't paste it- sorry, it was dsockwell Apr 23 06:24:36 ooh true sorry Apr 23 06:24:45 it looked like the correct link but it might have need to have a single line uncommented? Apr 23 06:24:49 flasher images are easily recognized since they have "BBB-eMMC-flasher" in the name Apr 23 06:25:16 it was https://debian.beagleboard.org/images/bone-debian-8.3-lxqt-4gb-armhf-2016-01-24-4gb.img.xz Apr 23 06:25:24 that's not a flasher Apr 23 06:25:27 http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Jessie_Snapshot_lxqt Apr 23 06:25:33 you can find flashers there Apr 23 06:25:35 you're right Apr 23 06:25:47 sorry everKdaver I feel bad Apr 23 06:26:03 =( Apr 23 06:26:05 some images are preconfigured to flash and overwrite the drive and some are just OS's Apr 23 06:26:06 you can also turn a normal image into a flasher by uncommenting that line apparently, though I never tried it Apr 23 06:26:13 zmatt is right though Apr 23 06:26:31 you have to access the image (what program on windows 10?) and go to the boot text file Apr 23 06:26:34 and uncomment one line Apr 23 06:27:06 :O ? Apr 23 06:27:14 I don't think I've ever seen anything for windows that can modify ext4 filesystems Apr 23 06:28:06 I have a virtual machine with linux Apr 23 06:28:16 ext2fsd? Apr 23 06:28:27 okay well if you can go into the file system on the sd card Apr 23 06:28:39 go to /boot/uEnv.txt Apr 23 06:28:51 I started the process again and D0 is blinking Apr 23 06:29:14 and remove the # in '#cmdline=init=/opt/scripts/tools/eMMC-flasher... etc Apr 23 06:29:35 ayjay let's me a moment to connect to the virtual machine Apr 23 06:29:49 ayjay: Can I stop the flashing process? Apr 23 06:29:49 i'm sorry didn't you say the LED's were "dancing" though? Apr 23 06:30:15 ie. in sequence 1 2 3 4 3 2 1 2 3 4 3 2 1? Apr 23 06:30:32 I started the process again and the led D0 is blinking.. Just that Apr 23 06:31:00 ayjay: No, just D0 =/ Apr 23 06:31:17 EverKdaver: but what did you mean then, "dancing" Apr 23 06:31:54 dancing = blinking jajaja Apr 23 06:32:15 i thought you meant they were moving like 1 2 3 4 3 2 1 2 3 4... Apr 23 06:32:24 no :( Apr 23 06:32:46 then what can we do? Can I desconect the power wire? Apr 23 06:32:49 zmatt: when you start a repo, send me the link Apr 23 06:33:02 that's not a problem but you need to edit the image so that it flashes the chip Apr 23 06:33:22 https://github.com/mvduin/py-uio ... still need to commit and push anything though Apr 23 06:33:58 I'm still confused.. Sorry -_- Apr 23 06:35:21 the image is on the SD, the BBB will boot the image, but it will not write the image to it's own memory unless you uncomment (remove the '#') one line in /boot/uEnv.txt Apr 23 06:35:46 ok.. I'll erase this line Apr 23 06:36:06 ! not the whole line! Apr 23 06:36:14 just '#'! Apr 23 06:37:07 yes Apr 23 06:39:14 wait.. This file is in the BBB memory? Apr 23 06:39:22 SD card. Apr 23 06:39:25 or in the sd card Apr 23 06:39:38 mmm I don't found it Apr 23 06:39:59 zmatt: your code isn't up Apr 23 06:40:09 when I put cd /boot/ this appear Apr 23 06:40:46 EverKdaver: if you just do /boot/ you will see the VM boot! not SD boot! Apr 23 06:41:11 ayjay you're right Apr 23 06:44:21 I'm so dumb.. Can you help me to access to sd card uEnv file? Apr 23 06:44:40 please =( Apr 23 06:44:40 EverKdaver: can you access sd card on VM ? Apr 23 06:44:49 yes Apr 23 06:44:57 so cd /...??? Apr 23 06:44:59 its appear like /dev/sdb Apr 23 06:45:13 cd don't works Apr 23 06:45:47 mount mkdir /mnt/test Apr 23 06:45:53 sry just mkdir /mnt/test Apr 23 06:46:09 mount /dev/sdb1 /mnt/test Apr 23 06:47:49 ok.. Ready Apr 23 06:48:11 cd /mnt/test && ls Apr 23 06:48:46 ready Apr 23 06:48:55 output? Apr 23 06:49:32 here is uEnv Apr 23 06:50:43 ;-) Apr 23 06:53:36 all the lines are uncomment Apr 23 06:53:47 it's so bad Apr 23 06:55:01 :-( Apr 23 06:56:20 =( Apr 23 06:57:34 ayjay: pushed Apr 23 06:58:09 jajaja Apr 23 06:58:15 EverKdaver: http://pastebin.com/ Apr 23 06:58:40 ayjay? Apr 23 06:58:51 ur uEnv file Apr 23 06:59:43 ooh ok but i can't copy text by the Virtual Box Apr 23 07:00:36 is it maybe not just faster to download a flasher image? Apr 23 07:00:48 zmatt: at this point, probably Apr 23 07:00:56 let me repair virtual box Apr 23 07:01:34 ayjay: I've put the uio code in a separate file, added untested support for receiving irqs, a few comments here and there Apr 23 07:01:51 and the necessary etc files, and two DT snippets Apr 23 07:02:08 maybe they should be converted to overlay format for convenience... I don't use overlays myself though Apr 23 07:02:44 i *do* use overlays so i can make it that format Apr 23 07:02:59 which i think is just changing the file extension Apr 23 07:03:05 no Apr 23 07:03:15 sadly, no Apr 23 07:03:20 it's okay Apr 23 07:03:39 i am going to go to bed, and tomorrow, after i finish soldering a prototype for a project, i will do it Apr 23 07:03:49 I once started on patching dtc to accept the normal format of a device tree fragment to make into an overlay Apr 23 07:03:58 but since I don't use overlays I kinda stopped caring Apr 23 07:04:55 EverKdaver: if you cannot edit the uEnv.txt, then download a flasher image like https://debian.beagleboard.org/images/BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz Apr 23 07:05:10 that is already setup Apr 23 07:05:16 goodnight! Apr 23 07:05:19 &target { CONTENT }; Apr 23 07:05:21 becomes Apr 23 07:05:34 i'm here... Apr 23 07:05:43 /dts-v1/; /plugin/; / { fragment@0 { target = <&target>; __overlay__ { CONTENT }; }; }; Apr 23 07:05:50 ;) Apr 23 07:06:03 horrid Apr 23 07:06:12 zmatt which peripheral are we testing? Apr 23 07:06:38 well my current test targets the l3 service network Apr 23 07:06:51 to verify python uses correct access size Apr 23 07:07:06 ayjay how it is used? eMMC? Apr 23 07:07:28 EverKdaver: use SD, then use the boot button Apr 23 07:08:29 ooh okay Apr 23 07:08:32 thanks Apr 23 07:08:36 the l3 service network can be used to collect errors from l3 targets, such as those caused by mistakes in other attempts to do I/O from userspace ;) Apr 23 07:08:49 I need more sd cards jajaja Apr 23 07:09:12 lol Apr 23 07:10:10 zmatt: status registers? Apr 23 07:10:36 errors log registers yeah Apr 23 07:11:45 though currently I just show the fault irq bits... but I'd still need to enable the fault irqs in the target agents before you'd see any irq bit set to 1 Apr 23 07:13:33 zmatt what peripherals should we develop access for? Apr 23 07:13:47 don't answer that now- but that's the big question Apr 23 07:14:08 adc is a useful target Apr 23 07:14:15 eCAP and eQEP modules also Apr 23 07:14:34 most peripherals have at least one "gotcha" though it seems :P Apr 23 07:15:03 personally i'd like to look at the ADC Apr 23 07:15:14 the crypto accelerators are also interesting Apr 23 07:15:21 by gotcha you mean write protected? Apr 23 07:15:27 no I mean some annoyance Apr 23 07:15:49 like the modules in PWMSS are smaller than a page so you get the whole pwmss at once Apr 23 07:16:25 and eHRPWM doesn't work until a clock enable bit has been set in the control module Apr 23 07:16:41 errata Apr 23 07:16:44 no Apr 23 07:16:59 not in the technical sense i mean from my perspective Apr 23 07:17:00 working at designed, just slightly annoying Apr 23 07:17:12 it makes class design more difficult Apr 23 07:17:12 adc is easiest probably Apr 23 07:17:14 and most useful Apr 23 07:17:31 also most relevant to beginners! Apr 23 07:17:59 the pwmss modules are a lot of fun too though... it may be possible to tweak the DT overlay to have the kernel enable the bit for us Apr 23 07:18:12 I'd need to look into that Apr 23 07:18:47 the annoyances a) need to be well documente Apr 23 07:18:51 documented* Apr 23 07:19:04 or I could use a magic hack to write to the control module anyway Apr 23 07:19:16 with proper warnings around doing so of course Apr 23 07:19:51 i like having options... Apr 23 07:19:57 but control module writes are useful for more things, like changing pinmux on the fly Apr 23 07:20:38 https://github.com/dutchanddutch/jbang/blob/master/src/privileged.h this is how I do it in C++ :) Apr 23 07:21:15 I can call process_vm_readv from python also Apr 23 07:22:18