**** BEGIN LOGGING AT Sun Jun 09 02:59:57 2019 Jun 09 03:04:13 Were people tired of teaching people about how to read the TRM for the am335x to enable pins and is that why we now have the config-pin utility? Jun 09 03:04:52 the TRM isn't going to teach you how to write an overlay :P Jun 09 03:05:09 config-pin is simply viewed as being easier, especially for new users Jun 09 03:05:30 What teaches "me" how to write an overlay if "I" ever needed one? Jun 09 03:05:51 Do not get me wrong, config-pin is full of wonder. It is very nice. Jun 09 03:06:04 I just wondered... Jun 09 03:06:27 I guess the TRM is for "bit banging" instead of configuring overlays. Jun 09 03:09:35 Is the TRM still of working order for the Character Device configurations? Jun 09 03:13:26 the TRM describes hardware, not software Jun 09 03:13:54 I realized what I asked once I read it. Sorry. Jun 09 03:19:53 As soon as I learn about sysfs systems, character device comes along. Aw! Jun 09 03:51:40 Okay. Jun 09 03:52:18 How can I use a LCD panel for the BBB when I cannot use config-pin p8.11 gpio? Jun 09 03:52:31 I mean...I can search for other gpio pins that are available. Jun 09 03:52:46 ehm what? Jun 09 03:52:58 Well. Jun 09 03:53:00 p8.11 is gpio (by default) Jun 09 03:53:06 Oh. Jun 09 03:53:09 Let me check. Jun 09 03:53:10 what does this have to do with an lcd panel? Jun 09 03:53:51 I have some lcd panel hooked up w/ p8.10, 11, 12, and 14. Jun 09 03:54:12 what kind of lcd panel? Jun 09 03:54:15 But. I cannot get this config-pin to set up properly. Let me see if gpio is default. Jun 09 03:54:20 5v. Jun 09 03:54:29 that is not useful information Jun 09 03:54:43 Some generic. Jun 09 03:54:51 that is even less useful information Jun 09 03:54:51 My bbb says pinmux not found. Jun 09 03:55:07 It is a keypad shield for Arduino. Jun 09 03:55:08 you know, I don't have the energy to do this right now, afk Jun 09 03:55:13 Okay. Jun 09 03:55:28 Off to look for available gpio pins. Jun 09 03:57:16 It could just be this BBGW board. I will check another board or comment the necessary lines in uEnv.txt. Jun 09 04:54:06 Trying another board. That BBGW must have some trouble accessing the gpio pins on P8 @ 11, 12, and 14. Jun 09 06:30:05 set_: you said BBB, not BBGW. you really ought to know the BBGW sucks because it uses expansion header pins for wifi/bt, I've mentioned that countless times in this channel Jun 09 06:30:11 https://pastebin.com/Fi8Vh0n5 Jun 09 06:30:23 anyway, I'm off to bed Jun 09 06:38:23 I am using another board now. It is okay. The config-pin command works for my GPIO pins. Jun 09 06:38:37 @zmatt: I know you have said this many times. Jun 09 06:38:53 Memory! Jun 09 11:16:49 If there is a cape eeprom at i2c2 0x54, should I not see the information from the eeprom in dmesg regardless of whether there is a dto that fits that cape? Or would I only see it if there is a dto that fits the info on the eeprom? Jun 09 15:56:29 I unboxed new BeagleBoard-xM, inserted SD card, connected board to PC serial terminal TeraTerm, powered up the board. Jun 09 15:57:15 I can navigate file structure but it says 'permission denied' when I try to create directory using 'mkdir' command? Jun 09 15:57:43 Did you update your image? Jun 09 15:59:35 XM? wow, now that's vintage Jun 09 15:59:39 Sorry. I thought you typed the x15. Jun 09 16:00:22 jani_: make sure your user has write permission to what you want to write to. Easiest probably to try in /tmp as that's usually writeable for everyone Jun 09 16:10:51 I can create directory in /tmp Jun 09 16:23:38 User doesn't have write permission to 'usr' directory. I used command 'chmod' a+w usr but board says changing permission of 'usr' isn't permitted? Jun 09 16:32:44 probably a good thing it can't Jun 09 16:32:58 seems like you'd destroy it Jun 09 17:01:35 ok. understood. I'm planning to do software development in the board. I'll be creating some USB Host project. What are my options for directory structure? Jun 09 17:07:46 /home/username is usual Jun 09 17:07:52 cd $HOME Jun 09 17:07:55 mkdir src Jun 09 17:07:58 cd src Jun 09 17:08:02 vi stuff.c Jun 09 17:08:08 make stuff Jun 09 17:08:18 ./stuff Jun 09 17:09:08 loop until working Jun 09 17:09:13 mkdir $HOME/bin Jun 09 17:09:18 cp stuff $HOME/bin Jun 09 17:13:44 ok. Thank you! Jun 09 17:15:22 I created and compiled hello.c in BeagleBoard-xM. a.out is generated. Typing a.out says "command not found" ? Jun 09 17:16:56 jani_: ./a.out Jun 09 17:17:36 ok. That worked! Jun 09 17:56:00 Is there a way to completely power off BeagleBoard-xM without removing power adapter from power jack? Jun 09 18:03:20 poweroff doesn't work? Jun 09 18:03:28 (sudo poweroff) Jun 09 18:08:48 'sudo poweroff' returns 'reboot: Power down'. LEDs D5 and D14 are still ON. I removed serial connection but these Two diodes are still lit. Jun 09 18:10:24 lemme check the schematic for what those leds are Jun 09 18:16:20 ok Jun 09 18:17:47 it does kind of sound like it fails to properly power down, which - if true - would probably be a kernel issue Jun 09 18:18:46 jani_: which image did you write to your sd card? Jun 09 18:19:32 rcn-ee[m]: are there any known issues with poweroff on on the xM ? Jun 09 18:20:03 I didn't write any image on the sd card. It has default image that came with the BeagleBoard-xM. Jun 09 18:21:21 oh so you're running a system of unknown age, that complicates things Jun 09 18:23:14 ok Jun 09 18:23:14 you might want to try flashing the latest image to an sd card and using that Jun 09 18:23:25 https://beagleboard.org/latest-images Jun 09 18:25:18 ok, thank you! Jun 09 22:49:15 Anyone able to point me to a good source for information on how to cook up device tree overlays? Jun 09 22:51:25 looking at existing examples may be informative... either bb.org-overlays or my https://github.com/mvduin/overlay-utils ... the latter are written as normal DT fragments and converted into overlay-syntax using a perl script (summary of normal DT syntax vs overlays: https://pastebin.com/b8kZfhRG ) Jun 09 22:52:08 I also have some notes summarizing DT syntax in general: https://pastebin.com/XC8vB33d Jun 09 22:55:59 zmatt: Thank you. **** ENDING LOGGING AT Mon Jun 10 02:59:57 2019