**** BEGIN LOGGING AT Sun Mar 08 02:59:58 2015
Mar 08 03:41:22 <dk_> morning :)
Mar 08 03:42:48 <dk_> alexanderhiam : We need to maintain a list of things we need to achieve for this GSoC
Mar 08 03:43:21 <dk_> and cleanly separate the pruss upstream driver and pru bridge
Mar 08 03:47:02 <dk_> I agree with hendersa on the fact that we should not help the students too much
Mar 08 08:18:03 <karki> wow, so many people :D
Mar 08 08:20:43 <chandy_> I am proposing an idea on Camera calibration using openCV
Mar 08 08:21:00 <chandy_> is it feasible ?
Mar 08 08:46:39 <Abhishek_> gm
Mar 08 11:26:03 <webglider> hello! does anyone know where I can find logs (of days before today) for this IRC
Mar 08 11:26:20 <webglider> this link only has today's logs: http://logs.nslu2-linux.org/livelogs/beagle-gsoc.txt
Mar 08 11:30:42 <geekswine_> http://logs.nslu2-linux.org/livelogs/beagle-gsoc/
Mar 08 11:31:45 <webglider> Thank you
Mar 08 11:37:21 <webglider> Is there any way to get in touch personally with mentors other than via IRC
Mar 08 11:47:30 <_av500_> webglider: there is a mailing list
Mar 08 11:47:46 <_av500_> you should sign up there anyway
Mar 08 11:48:08 <webglider> yes I am aware of that.
Mar 08 11:48:43 <webglider> I was asking for something like a one to one conversation
Mar 08 11:49:58 <_av500_> that could followup from the mailing list
Mar 08 11:52:30 <webglider> alright thank you :)
Mar 08 11:53:05 <webglider> Actually, I'm interested in working on the cross-platform NW.js getting started app
Mar 08 11:53:31 <webglider> There was a meeting on this IRC 2 days ago, where it was discussed
Mar 08 11:53:50 <webglider> Unfortunately, I was unable to attend this
Mar 08 12:00:24 <Budy> how does the BeagleRT project plan to assess realtime response? Will it compare with other solutions like FreeRTOS? or see if real-time response can be achieved for a specific application?
Mar 08 12:01:04 <Budy> sidbh_
Mar 08 12:12:43 <sidbh_> Budy, that's the choice of student and mentor of the project, the aim of the project in my terms is to create tools for creating a realtime application over BBB, and compare various techniques available on BBB for doing that e.g. RT-Patch, xenomai etc.
Mar 08 12:13:46 <sidbh_> I'll not be mentoring as I won't be available during GSoC period, will be busy travelling and moving.
Mar 08 12:14:32 <Budy> sidbh_: so the end goal is to compare the minimum latency/jitter that can be achieved using the different methods?
Mar 08 12:15:02 <sidbh_> yes
Mar 08 12:15:51 <Budy> can you please elaborate a little on the meaning of  "create tools for creating a realtime application "?
Mar 08 12:17:31 <sidbh_> yeah sure, one thing I suggested to students was to make and edit starter ware library compile for PRU, so that user can create nice userspace and PRU space applications.
Mar 08 12:20:52 <sidbh_> another thing I suggested was using DMA to optimise application. But I'm don't have much idea with regards to DMA, so can't talk in much detail on that side of things.
Mar 08 12:23:33 <Satyam_z> vvu : Are you there ?
Mar 08 12:35:24 <mciancia> may i ask, why there is ada in required skills for Orbital Imaging Cubesat project? ;)
Mar 08 12:37:45 <mciancia> also, can sameone tell me more about this project?
Mar 08 12:38:21 <mciancia> the goal is just to write software that will be able to capture data with high frequency by PRU?
Mar 08 13:00:12 <shubhangi> Abhishek_: ping
Mar 08 13:18:53 <geekswine_> i am following this to boot starterware ..http://www.cs.sfu.ca/CourseCentral/433/bfraser/other/BareMetalGuide.pdf
Mar 08 13:19:16 <geekswine_> can anyone tell me that how point 4 on page 5 will work...
Mar 08 13:20:31 <geekswine_> i.e how to enter U-Boot by pressing any key ??
Mar 08 13:20:55 <shubhangi> karki: ping
Mar 08 14:07:12 <Razvan> praveendath92, vvu, _av500_: How do I check that my device entered adk mode?
Mar 08 14:07:25 <praveendath92> Razvan: Hi
Mar 08 14:07:45 <praveendath92> In lsusb you will see a device with Vender as Google
Mar 08 14:08:45 <mateirm94> praveendath92: I have an ALLVIEW P5 device
Mar 08 14:09:07 <mateirm94> and for that I used the vendor id of htc
Mar 08 14:09:21 <mateirm94> it does not have it's own vendor id
Mar 08 14:09:31 <praveendath92> If your device entered ADK mode, you will see a persistent notification on your Android device.
Mar 08 14:09:55 <praveendath92> "Accessory mode"
Mar 08 14:10:03 <mateirm94> then my device did not entered adk mode
Mar 08 14:10:19 <praveendath92> Also in lsusb, your vid and pid changes to 0x18d1 and 0x2d01 respectively.
Mar 08 14:10:37 <praveendath92> or 0x2d00 if USB debugging not enabled.
Mar 08 14:10:39 <mateirm94> I followed the steps, I added the vendor id, product id, class, etc and inserted the kernel module
Mar 08 14:11:04 <praveendath92> You should also check for the class, subclass and protocol.
Mar 08 14:11:23 <mateirm94> you can check my pull request to see if I did it correctly
Mar 08 14:11:47 <praveendath92> I saw the request. The class, subclass values seem different.
Mar 08 14:12:04 <praveendath92> There is no way for me to verify this since I don't have the same device.
Mar 08 14:12:12 <anand2182> Hello
Mar 08 14:12:12 <anand2182> I ama beginer and would like to contribute to BeagleBoard.org. How should I go about it ?
Mar 08 14:12:36 <praveendath92> anand2182: http://elinux.org/BeagleBoard/GSoC/Ideas
Mar 08 14:13:10 <praveendath92> mateirm94: I can however check the values for you if can send me your lsusb -v log
Mar 08 14:13:14 <praveendath92> In pastebin.
Mar 08 14:13:20 <mateirm94> bDeviceClass            0 (Defined at Interface level)
Mar 08 14:13:24 <mateirm94> the values are correct
Mar 08 14:13:39 <mateirm94> this is strange, maybe the class is defined elsewhere
Mar 08 14:14:57 <praveendath92> mateirm94: Could you send me a lsusb -v log?
Mar 08 14:15:04 <praveendath92> I can check the values for you.
Mar 08 14:15:56 <mateirm94> praveendath92: http://pastebin.com/BKdUzWnP
Mar 08 14:17:01 <Ankit_ks> hello
Mar 08 14:17:09 <Ankit_ks> I would like to contribute to the project(gsoc): Program PRU using high-level scripting languages
Mar 08 14:17:41 <Ankit_ks> can anyone suggest me any microtask to get started?
Mar 08 14:17:57 <karki> Ankit_ks : it was done last GSoC
Mar 08 14:18:04 <praveendath92> mateirm94: Class is 0xff and subclass is HEX(66)
Mar 08 14:18:12 <karki> shubhangi : pong!
Mar 08 14:19:00 <mateirm94> yes now I see
Mar 08 14:19:40 <Ankit_ks> @karki: but then why is it listed in gsoc ideas page?
Mar 08 14:19:42 <mateirm94> I was looking at the device class, not interface class
Mar 08 14:19:51 <mateirm94> thanks praveendath92 I'll try again now
Mar 08 14:19:52 <karki> cause no one removed it.
Mar 08 14:19:55 <shubhangi> karki: when i load the pruspeak overlay, pins go high by default. echo SET DIO[0], 0 > /dev/pruspeak makes them low for a uSec and they turn back on
Mar 08 14:19:59 <praveendath92> mateirm94: Anytime.
Mar 08 14:20:13 <praveendath92> Could you set those values as VID5, PID5...
Mar 08 14:20:15 <karki> shubhangi : thats really weird
Mar 08 14:20:31 <karki> hmm....
Mar 08 14:20:38 <praveendath92> I already used 4 a while ago and I just noticed I haven't pushed the changes.
Mar 08 14:20:42 <karki> I'll look into it
Mar 08 14:20:49 <shubhangi> karki: i am using the precompiled module
Mar 08 14:20:59 <karki> but the good thing is that you have got the kernel module up and running
Mar 08 14:21:02 <karki> :)
Mar 08 14:21:21 <karki> shubhangi : which precompiled module ?
Mar 08 14:21:34 <shubhangi> karki: the one which comes with bone70
Mar 08 14:21:46 <karki> that should work!
Mar 08 14:22:03 <karki> apaaar got it to do his bidding ;)
Mar 08 14:22:05 <shubhangi> karki : i compiled the dts. do you have a pre compiled one
Mar 08 14:23:54 <karki> there should be a pre compiled one
Mar 08 14:24:33 <shubhangi> karki: i replaced it. sorry
Mar 08 14:24:43 <karki> It's cool
Mar 08 14:24:54 <karki> even apaar had a few problems
Mar 08 14:24:56 <shubhangi> karki: oh, i could get one from the kernel tree
Mar 08 14:25:01 <karki> but he managed t solve it
Mar 08 14:25:21 <karki> I don't think the problem is that you have compiled the dts
Mar 08 14:25:34 <karki> though it is the most likely thing
Mar 08 14:25:54 <karki> I don't know if the kernel source will have dtbo
Mar 08 14:26:06 * karki will be back soon! dinner time :d
Mar 08 14:26:12 <shubhangi> karki: okay
Mar 08 14:36:35 <mateirm94> praveendath92: I modified the values as you suggested, but the device still seems to not going in adk mode
Mar 08 14:37:14 <mateirm94> I made a make clean, removed the module, inserted again but the device still doesn't want to go in adk mode...
Mar 08 14:37:18 <praveendath92> Can you check the kernel log and see if the driver probing happens?
Mar 08 14:38:48 <mateirm94> just a moment
Mar 08 14:38:52 <praveendath92> Sure.
Mar 08 14:40:54 <mateirm94> praveendath92: It works
Mar 08 14:41:02 <mateirm94> I just had to wait a little
Mar 08 14:41:05 <mateirm94> :)
Mar 08 14:41:23 <praveendath92> Nice :)
Mar 08 14:42:12 <mateirm94> thanks! I'll load the udlfb now
Mar 08 14:42:36 <Satyam_z> ds2 : I want know more about u boot project
Mar 08 14:42:49 <Satyam_z> ds2 : *want to
Mar 08 14:43:10 <Abhishek_> shubhangi: pong
Mar 08 14:46:12 <shubhangi> Abhishek_: i was trying to toggle LED by writing to a sysfs file. to enable gpo by PRU i have modified the dts as well as pru firmware. the gpio pin is not going high
Mar 08 14:46:38 <shubhangi> Abhishek_: even if i do this :
Mar 08 14:47:26 <shubhangi> https://www.irccloud.com/pastebin/LVZ7XoOe
Mar 08 14:48:43 <Abhishek_> post the DTS as well
Mar 08 14:48:50 <karki> shubhangi : don't do magic, try mortal stuff ;)
Mar 08 14:48:51 <shubhangi> okay
Mar 08 14:49:09 <praveendath92> mateirm94: Could you also send the new devices ids in a pull request?
Mar 08 14:49:27 <Abhishek_> karki: :D
Mar 08 14:50:25 <mateirm94> praveendath92: yes I'll make a new pull request with the new ids
Mar 08 14:50:33 <praveendath92> Thanks.
Mar 08 14:51:31 <mateirm94> till then, shouldn;t you modify the readme at step 6? It says to update the lines 36-40, but actually the lines are 82-93
Mar 08 14:51:41 <mateirm94> step 7*
Mar 08 14:52:06 <shubhangi> Abhishek_: http://pastebin.com/CeyaxTHS
Mar 08 14:52:17 <karki> I never tried comprehending panto 's code :p
Mar 08 14:52:59 <karki> shubhangi : you have muxed the pins as input pins
Mar 08 14:53:37 <shubhangi> no
Mar 08 14:53:54 <mateirm94> praveendath92: I will be afk for 10-20 minutes
Mar 08 14:54:07 <karki> which pin is output?
Mar 08 14:54:21 <shubhangi> karki: the moment i do config-pin overlay BB-PRUSPEAK , all pins go high
Mar 08 14:54:45 <karki> no, I'm talking about the link you posted
Mar 08 14:55:09 <Abhishek_> shubhangi: where have you made changes in the DTS file?
Mar 08 14:55:56 <shubhangi> Abhishek_: sorry, posted the wrong one
Mar 08 14:56:02 <shubhangi> Abhishek_: one sec
Mar 08 14:56:04 <karki> thought so
Mar 08 14:56:11 <karki> apaar : how's it going ?
Mar 08 14:57:10 <apaar> just got back from a holiday...so catching up on the last few days :)
Mar 08 14:58:33 <shubhangi> http://pastebin.com/07pLtDpT
Mar 08 15:02:00 <shubhangi> Abhishek_: http://pastebin.com/07pLtDpT
Mar 08 15:04:07 <Abhishek_> shubhangi: which GPIO pin are you probing?
Mar 08 15:07:12 <shubhangi> Abhishek_: pru0_pru_r30_0 > P9.31
Mar 08 15:08:17 <shubhangi> Abhishek_: i'll do tht sysfs later. just a __R30 = 0xffff after the main() should put the pins high ?
Mar 08 15:09:30 <shubhangi> Abhishek_: http://pastebin.com/KpNQtPyZ
Mar 08 16:05:23 <nerdboy> moin
Mar 08 16:13:29 <nerdboy> https://www.youtube.com/watch?v=6a_hmI-7W5c
Mar 08 16:31:32 <mateirm94> praveendath92: I added the ADK mode ids
Mar 08 16:31:59 <mateirm94> inserted the udlfb module
Mar 08 16:32:29 <mateirm94> once I repluged the devices 2 new framebuffers appeared
Mar 08 16:32:52 <mateirm94> so I let refs/xorg.conf.fb unmodified
Mar 08 16:33:23 <mateirm94> the devices are dev/fb1 and dev/fb2
Mar 08 16:33:41 <mateirm94> once I ran xinit from my laptop
Mar 08 16:33:47 <mateirm94> the app crashed :(
Mar 08 16:34:16 <praveendath92> App crashed?
Mar 08 16:34:43 <mateirm94> unfortunately bard has stopped working
Mar 08 16:34:54 <praveendath92> You should be using the fb2 most likely. In your xorg.cong
Mar 08 16:34:59 <praveendath92> xorg.conf*
Mar 08 16:35:11 <mateirm94> ok I'll try now with fb2
Mar 08 16:35:18 <praveendath92> The driver has some issues with PC.
Mar 08 16:35:36 <praveendath92> Warning: PC crash has been usual.
Mar 08 16:35:48 <praveendath92> I would recommend trying on Bone instead.
Mar 08 16:36:47 <mateirm94> good to know :)
Mar 08 16:36:59 <mateirm94> I have a bleglebone black
Mar 08 16:37:08 <mateirm94> I'll try on that one
Mar 08 16:38:24 <mateirm94> one more question
Mar 08 16:38:34 <mateirm94> I updated the ids in ADK mode in devices.h
Mar 08 16:39:05 <mateirm94> and in udlfb.c I added USB_DEVICE_AND_INTERFACE_INFO(VID6, etc...)
Mar 08 16:39:27 <mateirm94> and I let .idVendor = 0x17e9 unmodified
Mar 08 16:39:38 <mateirm94> this is how it should have be done, right?
Mar 08 16:39:39 <webglider> vvu: Are you here?
Mar 08 16:41:29 <praveendath92> mateirm94: Let me check
Mar 08 16:43:12 <praveendath92> mateirm94: Actually the VID and PID change once you enter into ADK mode.
Mar 08 16:43:57 <praveendath92> So, udlfb.c should be updated with new VID, PID for device in ADK mode.
Mar 08 16:44:28 <praveendath92> Usually the VID, PID are same for all Android devices when entered ADK mode.
Mar 08 16:44:48 <mateirm94> yes, the VID and PID changed once entered in ADK mode
Mar 08 16:44:49 <praveendath92> I'm not very sure about the last statement. I need to check that with more devices.
Mar 08 16:44:56 <mateirm94> I put this values
Mar 08 16:45:00 <mateirm94> in VID6, PID6
Mar 08 16:45:10 <praveendath92> mateirm94: Perfect. It should be good then.
Mar 08 16:45:36 <praveendath92> Key is, driver probed or not. If yes, it's good.
Mar 08 16:46:00 <mateirm94> and added USB_DEVICE_AND_INTERFACE_INFO(VID6, etc...) as a new entry in id_table
Mar 08 16:46:03 <praveendath92> mateirm94: I should think of a better way to simplify this process.
Mar 08 16:46:10 <praveendath92> Perfect.
Mar 08 16:46:20 <webglider> vvu: small query regarding BBBlfs, the flashscript.sh script accepts .xz compressed images. How does it de-compress these?
Mar 08 16:46:46 <mateirm94> usbcore: registered new interface driver udlfb
Mar 08 16:48:19 <mateirm94> I could have put the wrong fb id
Mar 08 16:48:34 <mateirm94> I put dev/fb1 and could have been dev/fb2
Mar 08 16:48:44 <praveendath92> It's usually the highest x in fbx
Mar 08 16:48:53 <mateirm94> but both of them were in dev when reconnecting the device
Mar 08 16:49:00 <mateirm94> I'll try again, but on bone
Mar 08 16:49:17 <praveendath92> When you disconnect the device only one should be there.
Mar 08 16:49:25 <praveendath92> New one will be added by the driver.
Mar 08 16:50:02 <mateirm94> I normally have only fb0
Mar 08 16:50:17 <mateirm94> when I connect the device, I have fb0 fb1 and fb2
Mar 08 16:50:34 <mateirm94> when I disconnect, I have back fb0 only
Mar 08 17:02:27 <vvu> webglider: it decompresses it real time and dumps to  /dev/
Mar 08 17:02:40 <vvu> praveendath92: did you check my comment ?
Mar 08 17:03:19 <vvu> webglider: https://github.com/ungureanuvladvictor/BBBlfs/blob/master/bin/flash_script.sh#L141
Mar 08 17:03:26 <vvu> this is the line that does the magic
Mar 08 17:03:31 <praveendath92> vvu: Yes I did. I thought I responded.
Mar 08 17:03:41 <praveendath92> I will post the response.
Mar 08 17:03:48 <vvu> nop :)
Mar 08 17:04:21 <vvu> anyway i'm off to london, have a nice day!
Mar 08 17:05:49 <praveendath92> vvu: I just sent the comment. Have a safe trip :)
Mar 08 17:07:47 <webglider> vvu: Thanks alot!
Mar 08 17:09:11 <azizulhakim> materim94: i think you didn't put correct bInterfaceClass, bInterfaceSubclass & bProtocol. Normally USB device can have multiple interface and if you only use product and vendor id, the probe function will be fired for all interface available on that device
Mar 08 17:10:04 <azizulhakim> which means instead of creating one device file, it'll create multiple device file.
Mar 08 17:14:10 <azizulhakim> sorry for misspelled name. @mateirm94
Mar 08 17:22:12 <praveendath92> azizulhakim: is right. That's why we had to put more params into usb device filters there.
Mar 08 17:33:32 <azizulhakim> hi praveendat92, I remember there was a project proposal template which I can't find anywhere. Is it removed? Do you have any idea?
Mar 08 17:41:14 <praveendath92> azizulhakim: Let me see if I can find it for you
Mar 08 17:42:58 <Satyam_z> vvu : I want to know more about common bootloader idea .
Mar 08 17:43:18 <Satyam_z> vvu : I have posted one mail in mailing list about this please have a look ! Actually jkridner has suggested me to ask you about this project
Mar 08 17:45:41 <praveendath92> azizulhakim: I can't find it either. I followed the prev. available template. You may take a look: http://praveenkumar.co.in/blog/2014/05/gsoc-14-proposal-for-beagleorg/
Mar 08 17:46:54 <Satyam_z> anujdeshpande : Did you check mail I posted ? any suggestions ?
Mar 08 17:47:12 <anujdeshpande> no, haven’t checked yet
Mar 08 17:48:01 <azizulhakim> great. thanks.
Mar 08 17:48:11 <Haitham> i want to know the skills required to join BB this year ,i have a very good c,c++ ,electronics and EE knowledge ..is there enough time to learn linux development ?
Mar 08 17:48:24 <Satyam_z> anujdeshpande :  please have a look whenever you'll get time . I would like to know more  !
Mar 08 17:49:38 <azizulhakim> by the way, for the proposal we need to get two feedback from members of BB community. are we free to ask for feedback from here?
Mar 08 17:56:30 <Haitham> i want to know the skills required to join BB this year ,i have a very good c,c++ ,electronics and EE knowledge ..is there enough time to learn linux development ?
Mar 08 18:18:38 <namaste> mdp: Learned drivers/staging/iio/Documentation/ & Documentation/ABI/testing/sysfs-bus-iio. Really very nice and interesting knowledge.
Mar 08 18:18:48 <namaste> gained
Mar 08 18:21:46 <ds2> have you tried building the kernel?
Mar 08 18:23:17 <namaste> ds2 I have cross compiled vanilla kernel for BBB
Mar 08 18:30:29 <webglider> .
Mar 08 18:38:45 <nerdboy> he forgot his . ...
Mar 08 18:42:23 <_av500_> nerdboy: i deputized you
Mar 08 18:42:44 <webglider> .
Mar 08 18:43:03 <nerdboy> really?
Mar 08 18:43:16 * nerdboy didn't get his shiny deputy badge yet
Mar 08 18:43:55 <Satyam_z> ds2: I want to know more about comman bootloader project please help me with this
Mar 08 18:44:02 <vvu> Satyam_z: ping
Mar 08 18:44:16 <vvu> i am flying to london now
Mar 08 18:44:46 <vvu> the code you wrote in the repo uses the legacy libusb switch to 1.0
Mar 08 18:45:14 <Satyam_z> vvu: Okay !
Mar 08 18:45:43 <vvu> the problem for the bootloader is the SPL because it is memory constrained
Mar 08 18:45:58 <vvu> after you have a common spl the rest should be fairly simple
Mar 08 18:46:26 <vvu> try looking through the SPL code for the bbb
Mar 08 18:47:09 <Satyam_z> vvu: ok means I should focus  on  SPL
Mar 08 18:47:13 <vvu> for the usb booting i am using spl which does RNDIS over usb, am335x_evm_usbspl is the config i think so in u-boot
Mar 08 18:47:21 <vvu> check with ds2 also :)
Mar 08 18:47:39 <vvu> anyway i'm going offline, any questions u have post on ML
Mar 08 18:48:03 <Satyam_z> vvu : Exactly ! We can continue with this tomorrow
Mar 08 18:48:15 <Satyam_z> vvu : Have a happy journey :)
Mar 08 18:48:33 <vvu> 10x
Mar 08 18:49:51 <nerdboy> _av500_: what does that mean exactly?
Mar 08 19:00:03 * vvu s flight just got some minutes delay :(
Mar 08 19:03:16 <namaste_> mdp and ds2 : Can you please guide me how to proceed further?
Mar 08 19:03:31 <nerdboy> I'm "available" but going to conference this week
Mar 08 19:07:40 <ds2> namaste: does it boot?
Mar 08 19:07:54 <ds2> Satyam_z: what do you know about bootloaders?
Mar 08 19:08:15 <ds2> namaste: also, do you have  BBB on you?
Mar 08 19:08:26 <ds2> >
Mar 08 19:09:02 <namaste_> Ya it did
Mar 08 19:09:10 <namaste_> and I do have BBB
Mar 08 19:09:11 <ds2> For non US folks - I am on PDT now or UTC -7
Mar 08 19:10:00 <ds2> namaste_: can you look through the ML archives and reproduce some of the ADC problems folks was having? one thing you need to do for the project is to identify the problems and then sort through the important ones (you will not have time to fix it all within GSoC)
Mar 08 19:10:43 <namaste_> ok
Mar 08 19:10:57 <ds2> namaste_: essential - triage the problem. things to consider is - did everyone complain about it?
Mar 08 19:11:34 <ds2> namaste_: with that in mind, also think about the features the ADC offers that is not available. Many folks are being point to the PRU to do things that can be done in the ADC if the driver supported it.
Mar 08 19:12:40 <Satyam_z> ds : bootloader is a program which loads os / boot os kernel . No I don't have BBB with me
Mar 08 19:12:44 <ds2> namaste_: another data point to get up to speed on is the ADC from an older GSoC.
Mar 08 19:13:22 <ds2> Satyam_z: in a very literal sense - how does the kernel get started on the BBB?
Mar 08 19:13:33 <ds2> say I apply power to the BBB. what happens?
Mar 08 19:15:28 <namaste_> ds2 : So any existing project available for reference ( any github link can I get?)
Mar 08 19:15:56 <ds2> namaste_: reference in what sense? there is the current ADC driver
Mar 08 19:16:32 <Satyam_z> ds2: after applying power bootloader program is executed . In which it locates the address of kernel in the memory ! And loads kernel from thet address
Mar 08 19:17:12 <ds2> namaste_: you did see drivers/iio/adc/ti_am335x_adc.c, right?
Mar 08 19:17:27 <ds2> Satyam_z: what does the bootloader do?
Mar 08 19:17:28 <namaste_> ya
Mar 08 19:17:46 <ds2> namaste_: the project is more or less take that driver and fix bugs/add features to it
Mar 08 19:18:20 <Satyam_z> ds2: As I said it loads kernel image from given offset
Mar 08 19:18:47 <ds2> namaste_: AFAIK, there isn't other stuff around except for the old GSoC project for the driver.... there are interactions between the ADC itself and the touch screen stuff (same HW, different math)
Mar 08 19:19:23 <ds2> Satyam_z: there is a lot more that needs to happen before that can occur.
Mar 08 19:20:24 <Satyam_z> ds2: yeah like initialization of hardware
Mar 08 19:20:43 <ds2> Satyam_z: what kind of initialization? this is important for this project
Mar 08 19:21:52 <ds2> the goal is to take (in an ideal world) - 3 bootloaders and make 1 to replace all 3
Mar 08 19:22:22 <ds2> if you can't id what they need to do, it would be a very very difficult problem
Mar 08 19:22:33 <Satyam_z> ds2:  like CPU initialization
Mar 08 19:22:58 <ds2> Satyam_z: go on
Mar 08 19:23:18 <ds2> the good thing is, 2 of the 3 bootloaders of interest use the same CPU/core :D
Mar 08 19:25:46 <Satyam_z> ds2: other initializations like configuration of the SDRAM
Mar 08 19:26:03 <Satyam_z> ds2: Exactly cpu is common to all :D
Mar 08 19:26:19 <ds2> Satyam_z: okay. how does the code to init all this stuff get into the system?
Mar 08 19:26:24 <ds2> if SDRAM is not configured....
Mar 08 19:28:58 <Satyam_z> ds2: I am not sure about this I will have to read more on this
Mar 08 19:29:47 <ds2> Satyam_z: it is a tricky problem. look in one of the TRMs
Mar 08 19:30:02 <ds2> Satyam_z: what this leads to is understanding the constraints
Mar 08 19:30:17 <ds2> Satyam_z: did you post the beagleboard-gsoc list?
Mar 08 19:30:28 <Satyam_z> ds2: yes
Mar 08 19:30:39 <ds2> 'k
Mar 08 19:31:13 <Satyam_z> ds2:  I am currently reading about SPL
Mar 08 19:31:43 <ds2> k
Mar 08 19:31:51 <ds2> read the trm also
Mar 08 19:31:58 <Satyam_z> ds2: ok
Mar 08 19:33:25 <namaste_> ds2: I want to ask that drivers/iio/adc/ti_am335x_adc.c was the part of last GSOC? and can you please explain "here are interactions between the ADC itself and the touch screen stuff (same HW, different math)"?
Mar 08 19:35:46 <Satyam_z> ds2: please may I know whats TRM sands for ? I googled it but got many unnecessary stuff
Mar 08 19:38:16 <ds2> namaste_: not quite... that is the upstreamed version
Mar 08 19:39:14 <ds2> namaste_: the ADC HW block can do TSC (Resistive) or pure ADC. A resistive TSC just applies voltages to the pins in a certain order and uses the ADC to measure the voltages. In order to share the ADC block bwtn the functions, there needs to be some cooperation between the 2 drivers.
Mar 08 19:39:45 <ds2> namaste_: if you dig into the last GSoC, there were some bugs where pure ADC functions can cause jitter/issues with the TSC output
Mar 08 19:40:12 <ds2> Satyam_z: technical reference manual - goto TI's site. look up the docs for the AM3358. There are 2 main documents.
Mar 08 19:40:34 <ds2> (1) datasheet and (2) TRM - Technical Reference Manual. The TRM is the one with a lot of pages.
Mar 08 19:41:41 <Satyam_z> ds2: ok Thank you :)
Mar 08 19:41:57 <ds2> it maybe around 3000 pages
Mar 08 19:42:48 <ds2> just look at the booting stuff first then refer back. things you will probally have to care about are the memory controller (either EMIF or SDRC) and the PRCM stuff.
Mar 08 19:43:11 <ds2> due to resource limitations, it be good to see if there are overlaps with the kernel inits.
Mar 08 19:43:16 <ds2> but that's getting ahead of thins
Mar 08 19:43:18 <ds2> things
Mar 08 19:43:53 <ds2> part of the proposal has to convince the reader (not just me) that you understand enough of the basics to tackle the project
Mar 08 19:44:14 <Satyam_z> ds2: okay ! Anything else ?
Mar 08 19:45:05 <Satyam_z> ds2:  for reading stuff !
Mar 08 19:45:45 <Satyam_z> ds2: Actually I do not have bbb with me ,  does that matter ?
Mar 08 19:46:10 <ds2> Satyam_z: that's the main thing off the top of my head
Mar 08 19:46:20 <ds2> Satyam_z: not at this point
Mar 08 19:46:47 <ds2> sorry, got to go
Mar 08 19:46:52 <ds2> lunch time
Mar 08 19:46:53 <Satyam_z> ds2: All right I will ask later
Mar 08 19:47:04 <ds2> 'k
Mar 08 19:47:05 <Satyam_z> ds2 : yeah sure
Mar 08 21:29:24 <shubhangi> Abhishek_: ping !
Mar 08 21:29:39 <shubhangi> Abhishek_: managed to get everything working :) https://github.com/shubhi1407/LEDtoggle
Mar 08 21:30:05 <shubhangi> Abhishek_: alexander told me to make this
Mar 08 21:31:19 <shubhangi> alexanderhiam: ping !
Mar 08 21:33:17 <Abhishek_> good start (y)
Mar 08 21:33:35 <shubhangi> thanks :)
Mar 08 21:34:36 <Abhishek_> The compiled binaries are usually made available separately from the code in git
Mar 08 21:34:55 <shubhangi> I'll remove them. Didn't know that
Mar 09 02:05:24 <Utal> jkridner, i want to work Using BeagleBone PRUs to control CNC and 3D printer stepper motor Drivers .can you here help me to get started
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