**** BEGIN LOGGING AT Wed Oct 17 03:00:00 2018 Oct 17 03:00:07 I'm just glancing at their code to get the panel specs Oct 17 03:01:26 I think one of the issues is that I don't know what ac bias / de mode vs sync mode is. I think these are pretty generic LCD terms though. Oct 17 03:02:43 http://wiki.friendlyarm.com/wiki/index.php/Main_Page#LCDModules Oct 17 03:03:39 You might be able to show what that software example on github goes to, e.g. if your LCD panel is the exact one. We can probably go from there. Oct 17 03:04:06 it's the LCD-S430 Oct 17 03:04:11 Oh! Oct 17 03:04:18 That is better than not good. Oct 17 03:04:19 ! Oct 17 03:05:10 Hhahaha. There is nothing there? Oct 17 03:05:33 I am so sorry to laugh at your trauma. Oct 17 03:05:40 if you go to the chinese you can get a schematic Oct 17 03:05:46 Oh! Oct 17 03:05:48 Okay. Oct 17 03:06:01 it doesn't mention anything about timings etc though Oct 17 03:06:04 http://wiki.friendlyarm.com/wiki/images/b/b8/LCD-S430-1612.pdf Oct 17 03:06:28 I don't speak chinese but I just clicked on all the links :) Oct 17 03:06:42 http://wiki.friendlyarm.com/wiki/index.php/File:S43.png Oct 17 03:06:54 That page has some extra info. Oct 17 03:07:25 I think this specific LCD is for camera vision and photos. Oct 17 03:07:39 ? Oct 17 03:07:48 It's a generic panel. Oct 17 03:08:59 Sorry. I was reading something else. Oct 17 03:09:04 I got it. Oct 17 03:09:12 I have the schematic now! Oct 17 03:09:51 I think their co. is selling that it only works w/ Ubuntu but that cannot be correct. Oct 17 03:10:17 Oh...and Android. Oct 17 03:13:40 How are you trying to communicate w/ your bbb and lcd? Oct 17 03:13:56 Header pins and in what form? Oct 17 03:14:33 i.e. UART or ______? Oct 17 03:14:34 I specify the pins in the dts file, modifying the LCD4 example overlay Oct 17 03:14:42 Oh. Oct 17 03:14:50 no, though the actual LCD header Oct 17 03:14:57 RGB LCD Oct 17 03:15:39 it's got i2c for touch as well, that is detected correctly when I scan i2c addresses Oct 17 03:15:47 OKay. Oct 17 03:16:05 Hmmm. Did you try what that fellow zmatt said about config-pin? Oct 17 03:16:44 I do not think that example or "module" from github is the correct way to go. Oct 17 03:17:19 oh I just need that example to work out what the timing is Oct 17 03:17:30 I'm just putting that timing into the LCD4 example Oct 17 03:17:41 Oh. Oct 17 03:18:02 So, let me get this right. You are using their ideas for a dts file only? Oct 17 03:18:57 Those header files must be very interesting. Oct 17 03:19:07 The .h files on github. Oct 17 03:19:16 yeah, so i need to know what the the front porch, back porch frequency etc is Oct 17 03:19:28 so I got those numbers from there Oct 17 03:22:02 I am sure other people told you to use sudo config-pin p9.xx uart and etc. Oct 17 03:22:53 yeah so that'll tell it to enable the lcd pins, but I'll still need to tell it the timing info somehow Oct 17 03:23:06 not sure how to tell it that without just using the DTS stuff? Oct 17 03:23:24 Oh. Oct 17 03:23:31 Did you power it separately? Oct 17 03:23:32 unless I can specify that to the KMS lines or xorg conf Oct 17 03:23:44 maybe an fake EDID somehow... Oct 17 03:24:04 the panel and BB are powered from my PCB Oct 17 03:24:11 I do not know that much lingo w/ C/C++. I am very sorry. Oct 17 03:24:13 Oh! Oct 17 03:24:36 the panel back light lights up correctly and voltages look okay. Oct 17 03:24:58 I'll have a look at the PCLK pin and see what the frequency is... Oct 17 03:25:03 So, it is not power. We are ruling things out now. Oct 17 03:25:13 This is good. I am learning. Oct 17 03:26:46 I'm not sure what the clock should be, It wasn't specified anywhere so I calculated it from the rest of the timing info they did give Oct 17 03:27:22 timing0: 480x800 { clock-frequency = <28500000>; Oct 17 03:31:38 There has to be a lot of software. I saw the info. on the github.com page. I saw the different connections being made/that need to be made. Oct 17 03:31:39 ... Oct 17 03:35:46 Oh well. I would most likely need this LCD to test further. Maybe. If you do not change names and if you are around in the next couple of weeks, start another chat w/ me. Oct 17 03:35:51 I should have some more info. Oct 17 03:36:14 PCLK is what I've set in the timing, 28.5 mhz Oct 17 03:36:45 I'll hopefully get it working today, that's the plan anyway. Oct 17 03:37:00 Is there two LCD screens or something? Oct 17 03:37:11 No, just one Oct 17 03:37:15 Okay. Oct 17 03:37:58 Well, nevertheless. I am beat for now. I lost. Dang it! Oct 17 03:38:30 I will keep going through my human computer mind and think of more ideas w/ that schematic. Oct 17 03:39:07 all good, thanks for the help. I think I've probably just go the hsync / vsync options around the wrong way but maybe also the pins connected to the wrong pins... Oct 17 03:39:26 Who knows? Right now, I do not. Oct 17 03:44:44 vsync is 60 hz and looks correct Oct 17 03:44:51 on the scope Oct 17 04:17:02 I think I'm starting to get the AC bias stuff a bit lesss wrong. Though still not sure how to put the right value in the DTS. I think AC Bias should maybe be 0 or 1 instead of 255... but really not sure. Oct 17 05:58:54 SuproThunderbolt: acbias is a parameter that only applies to passive-matrix LCDs, which aren't even suppported. in other words the setting is pointless Oct 17 06:23:13 SuproThunderbolt: here's a working DT declaration for a panel, with lots of notes/comments: https://paste.debian.net/1047683/ Oct 17 06:23:41 I don't know whether the comment at the top is still true, haven't tested it in a while Oct 17 06:40:14 and the comment about polarities near the end is slightly wrong: the pixel clock *can* be configured to active-low, but not through the official property but a custom one (invert-pxl-clk;) Oct 17 06:41:57 (and inverting DE is supported by the peripheral but not by the driver) Oct 17 11:01:32 Hi everybody Oct 17 11:01:37 are there any Oct 17 11:01:53 examples to blink a user led from DSP ? Oct 17 11:02:05 foes it require any modification from linux ? Oct 17 13:27:44 jakob Oct 17 13:29:00 Hello. I'm following the instructions on https://www.digikey.com/ to compile the BBB kernel, but i don't understand what kernel should i get: Oct 17 13:29:52 when i run a python gui in cloud9 then it show that error"ImportError: No module named tkinter" Please help me to figure out Oct 17 13:30:53 qwebirc77803: you have to install the python-tk package Oct 17 13:31:08 yes i install Oct 17 13:31:28 qwebirc77803: if you can run console commands from cloud9, run `apt-get install python-tk` on the beaglebone Oct 17 13:31:32 did you install it on the beaglebone? Oct 17 13:32:11 right now i have the 4.9.88-ti-r111 ... should i get the Stable or the Longterm? what is the "+ Real-Time Linux)" difference?? Oct 17 13:32:44 i install by typing that command in cloud9 sudo apt-get install python-tk Oct 17 13:33:07 did it work, qwebirc77803 ? Oct 17 13:33:40 no Oct 17 13:33:48 it didn't install? Oct 17 13:33:55 what error did you get when you tried to install it? Oct 17 13:33:59 did you run `apt-get update` first? Oct 17 13:34:28 i get that error ImportError: No module named tkinter Oct 17 13:34:34 no qwebirc77803 i'm asking about the install Oct 17 13:34:45 when you tried to install it, did it work? Oct 17 13:34:47 or did you get an error Oct 17 13:34:49 yes i update first Oct 17 13:35:23 when i install then i can not get any error Oct 17 13:36:14 when i run sudo apt-get install python-tk then it show python-tk is already the newest version (2.7.13-1). Oct 17 13:37:36 https://stackoverflow.com/questions/7498658/importerror-when-importing-tkinter-in-python#11621141 Oct 17 13:37:44 and make sure that you are using the versions you mean to Oct 17 13:38:14 you can make sure it works via commandline python -c "import tkinter" or python -c "import Tkinter" depending on v2 or v3 Oct 17 13:39:00 huh the other guy left Oct 17 15:17:27 m Oct 17 15:18:13 mmmmmmmmmmmmm Oct 17 15:18:30 zmatt: did you say something to me? Oct 17 15:18:34 I had a notice pop up, but I don't see any messages. Oct 17 15:20:35 yeah a while ago, nothing important Oct 17 15:20:56 qwebirc22961: dsp? what dsp? Oct 17 15:21:03 qwebirc22961: do you mean PRU ? Oct 17 15:21:29 or do you have a beagleboard-x15 (which does have DSPs) rather than a BBB (which definitely doesn't) Oct 17 15:22:58 15:30 < ayjay_t> qwebirc77803: you have to install the python-tk package Oct 17 15:22:59 no Oct 17 15:23:07 he probably wants the python3-tk package Oct 17 15:23:21 since I really hope nobody still starts any project on python2 these days :P Oct 17 15:25:07 /shrug Oct 17 15:28:09 !join @freenode_NickServ:matrix.org Oct 17 15:28:11 grrr Oct 17 15:38:41 m Oct 17 15:43:25 "m" is maybe the visible appendix of some sort of script Oct 17 16:16:27 CoffeeBreakfast: ?? Oct 17 16:18:58 then why kremlin says "m"? Oct 17 16:22:01 haha i see it too i'm lik ewhat Oct 17 16:22:02 what Oct 17 16:22:02 what even Oct 17 16:24:22 "good morning" Oct 17 16:28:15 that was my guess Oct 17 16:28:17 rather cryptic Oct 17 23:24:26 I think I shorted something in my board. Is it dead now, or is there somewhere I can send it for repair? Oct 17 23:27:02 It would be cheaper to buy a new one. Manual repairs to microelectronics are very expensive to impossible. Oct 17 23:45:26 + shipping. Oct 17 23:45:42 which you would pay for anyways if you got a new one. **** ENDING LOGGING AT Thu Oct 18 03:00:00 2018