**** BEGIN LOGGING AT Sun Jan 14 03:00:03 2018
Jan 14 11:49:36 <cyberguy> how do i tweak u-boot device tree to change am335x clock to 600Mhz (instead of 1Ghz)?
Jan 14 14:44:32 <zmatt> cyberguy: device tree isn't the problem
Jan 14 14:45:41 <zmatt> cyberguy: the problem is that u-boot configures the clock speed very early on, and for most boards it will auto-detect the correct speed based on am335x efuses, but for the beaglebone black it hardcodes 1 GHz because some early beaglebone blacks had some early am335x parts with incorrectly programmed efuses
Jan 14 14:46:19 <zmatt> since I noticed the kernel mentioned there's no board identification EEPROM, I'm guessing you patched u-boot to think it's a beaglebone black
Jan 14 14:46:34 <zmatt> ?
Jan 14 17:17:00 <needHelpSerial> Hi friends. Hoping someone can help. I am trying to read from uart PIN P9_11 (UART4) and writing o n to P9_24(UART1).
Jan 14 17:17:39 <needHelpSerial> I am getting following error. Kernel does not include CapeMgr module
Jan 14 17:18:00 <zmatt> let me guess: you're booting a recent image from SD card (not flashed to eMMC)
Jan 14 17:19:04 <needHelpSerial> I was using SD card until recently but I have flashed it to eMMC and running from there.
Jan 14 17:19:27 <zmatt> hmm, which image are you running? (cat /etc/dogtag)
Jan 14 17:20:04 <needHelpSerial> Debian Image 2017-10-10
Jan 14 17:20:30 <zmatt> yeah I think that may be recent enough for u-boot overlays.... are they mentioned in /boot/uEnv.txt ?
Jan 14 17:20:47 <needHelpSerial> let me check..thanks
Jan 14 17:23:02 <needHelpSerial> I am sorry..I am just trying with BBB for last one week. While I have some good exp with Unix side I am newbee to BBB.
Jan 14 17:23:16 <needHelpSerial> What should I look for uEnv.txt ?
Jan 14 17:23:30 <zmatt> whether enable_uboot_overlays=1
Jan 14 17:23:32 <zmatt> is in there
Jan 14 17:24:04 <zmatt> or just pastebin your /boot/uEnv.txt
Jan 14 17:24:40 <needHelpSerial> yes it is there and uncommented
Jan 14 17:25:11 <zmatt> does /proc/cmdline include the kernel parameter "bone_capemgr.uboot_capemgr_enabled=1" ?
Jan 14 17:26:04 <zmatt> oh suddenly I realize your problem has nothing to do with cape-universal
Jan 14 17:26:33 <zmatt> you're using some archaic adafruit stuff probably for the uarts?
Jan 14 17:27:46 <needHelpSerial> yes  bone_capemgr.uboot_capemge_enable-1 option is there in /proc/cmdline
Jan 14 17:28:07 <zmatt> okay, your system is fine, the issue is with the code you're using
Jan 14 17:28:26 <zmatt> (most likely)
Jan 14 17:29:39 <needHelpSerial> var b = require('bonescript'); var rdport = '/dev/ttyO4'; var rdoptions = {     baudrate: 115200 };  var wrport = '/dev/ttyO1'; var wroptions = {     baudrate: 115200 }; var inData = 'Test Data'; console.log(inData); b.serialOpen(rdport, rdoptions, onSerial); b.serialWrite(wrport,"Test Data"); console.log('After write'); function onSerial(x) {     if (x.err) {         console.log('***ERROR*** ' + JSON.stringify(x));     }   
Jan 14 17:29:49 <zmatt> bonescript, hmm
Jan 14 17:30:04 <needHelpSerial> Not sure if there is better way to paste code..
Jan 14 17:30:08 <zmatt> also, please don't paste multiline stuff directly into chat, use a paste service like pastebin.com
Jan 14 17:30:23 <needHelpSerial> ok..thanks..will do
Jan 14 17:30:47 <zmatt> if your bbb has internet access, you can also use the utility "pastebinit" to turn a file or the output of a command into a pastelet
Jan 14 17:31:17 <zmatt> I know very little about bonescript
Jan 14 17:31:57 <zmatt> the error sounds like it is still trying to load an overlay for the uarts, which is not appropriate
Jan 14 17:32:12 <zmatt> I'm assuming /dev/ttyS1 and /dev/ttyS4 do actually exist?
Jan 14 17:32:25 <needHelpSerial> https://pastebin.com/PjSVmcRu
Jan 14 17:33:50 <needHelpSerial> Yes they exist. I could see /dev/ttyO1 to ttyO4  symbolic linked to /dev/ttyS1 and /dev/ttyS4
Jan 14 17:34:03 <zmatt> yeah ttyO* are backward-compat symlinks
Jan 14 17:36:34 <needHelpSerial> thanks a lot matt :-) certainly learnt new things.
Jan 14 17:36:40 <zmatt> might just be a bug in bonescript
Jan 14 17:38:14 <zmatt> yeah, based on a superficial look at the code, it looks like it wants to load an overlay for uarts even if cape-universal is being used
Jan 14 17:38:17 <zmatt> which fails
Jan 14 17:38:26 <needHelpSerial> I read in some message chain..  For the 4.1 kernel, you need the beta version of BoneScript to use the pinmux helpers it understands. I believe the package is:  apt-get install bonescript-beta
Jan 14 17:38:54 <zmatt> well I'm looking at bonescript fresh from git
Jan 14 17:39:02 <needHelpSerial> oh ok
Jan 14 17:40:05 <zmatt> my suggestion would be: use the config-pin command to configure the two pins you need to uart mode, and just use the serial ports using any generic code for serial ports on linux
Jan 14 17:41:50 <needHelpSerial> ok. I did config-pin P9.11 uart  config-pin P9.26 uart
Jan 14 17:42:24 <needHelpSerial> can you pl throw some light on 'generic code for serial ports on linux' ?
Jan 14 17:42:54 <zmatt> bonescript uses the 'serialport' package for nodejs
Jan 14 17:43:09 <zmatt> juse use that package directly
Jan 14 17:43:26 <zmatt> https://www.npmjs.com/package/serialport#usage
Jan 14 17:44:29 <needHelpSerial> ok. let me check. thank you
Jan 14 17:48:25 <needHelpSerial> matt thanks again for help. It is getting late in to night here. I will take a break and try..
Jan 14 19:06:16 <wasserfall> q
Jan 14 19:06:19 <wasserfall> exit
Jan 14 19:06:22 <wasserfall> quit
Jan 14 19:48:55 <Fra> h
Jan 14 19:48:57 <Fra> hi
Jan 14 19:49:28 <Fra> i have a tech site with many followers. are you interested in a review? my email is francescomura00@gmail.com
**** ENDING LOGGING AT Mon Jan 15 03:00:01 2018