**** BEGIN LOGGING AT Mon Dec 26 03:00:01 2016
Dec 26 06:41:40 <kid_> hello
Dec 26 06:41:53 <kid_> uhhhh
Dec 26 08:41:03 <diycookies> anybody here use bbb wireless yet?
Dec 26 09:03:26 <ServerProcessor> arduino
Dec 26 11:32:40 <chris33> has anyone made ti dlp work with a bbb
Dec 26 15:00:44 <meyermagic> I'm trying to control a 5V, three-wire fan: http://www.delta.com.tw/product/cp/dcfans/download/pdf/BFB/BFB40x40x10mm.pdf
Dec 26 15:01:10 <meyermagic> When I plug the voltage wire into the BeagleBone Black's 5V or 3.3V outputs, it spins
Dec 26 15:01:24 <meyermagic> (at full speed and slower, respectively)
Dec 26 15:01:44 <meyermagic> But I can't really get it to move using the GPIO or PWM outputs
Dec 26 15:01:59 <meyermagic> The most I can get it to do is wiggle a bit
Dec 26 15:02:22 <meyermagic> Does anyone know why this might be?
Dec 26 15:05:30 <mistawright> meyermagic, says its two wires from that link
Dec 26 15:05:49 <meyermagic> Ah, that might be the wrong datasheet. Hold on
Dec 26 15:06:13 <meyermagic> (I can confirm it has three wires in reality, presumably GND, V, and the timing wire)
Dec 26 15:08:33 <meyermagic> DigiKey links to the wrong datasheet, it looks like. This is the correct product: https://www.digikey.com/product-detail/en/delta-electronics/BFB0405HHA-AF00/603-1562-ND/2560685
Dec 26 15:10:12 <meyermagic> mistawright: Also, if it matters, I'm still using the neat little onboard HTTP server / in-browser programmer thing. Perhaps that has some issues?
Dec 26 15:11:06 <mistawright> not necessarily that link links to the same datasheet so that makes sense why i thought it was wrong
Dec 26 15:12:26 <mistawright> I can only assume one of those pins would be for pwm for speed control of said fan but there doesnt seem to be enough info to go by.
Dec 26 15:12:44 <meyermagic> From what I've read about three-wire fan control
Dec 26 15:12:51 <mistawright> its not a brushless motor is it? doesnt look like it
Dec 26 15:13:04 <meyermagic> How it is supposed to work is a hall effect sensor reads every time the fan goes around, and outputs a pulse on the third wire
Dec 26 15:13:08 <mistawright> wouldnt think they would use a brushless motor for something like this
Dec 26 15:13:21 <meyermagic> And you're supposed to modulate the voltage to modulate the fan speed.
Dec 26 15:14:24 <meyermagic> mistawright: It says "brushless" on it, so probably brushless
Dec 26 15:15:41 <meyermagic> mistawright: Also, 0.24A. But I doubt power is the issue, since it works when directly plugged into the 5V out
Dec 26 15:19:26 <mistawright> meyermagic, do you know if it has a built in speed controller?
Dec 26 15:19:29 <mistawright> it sounds like it does
Dec 26 15:19:35 <mistawright> so you would have power ground and signal
Dec 26 15:20:14 <meyermagic> Yes, I believe so, if I understand what you mean correctly
Dec 26 15:20:23 <mistawright> signal would take a pwm in which is what modulates the speed
Dec 26 15:20:29 <meyermagic> Ah
Dec 26 15:20:29 <meyermagic> I
Dec 26 15:20:34 <meyermagic> Well
Dec 26 15:20:38 <meyermagic> You might be right
Dec 26 15:20:58 <meyermagic> But I was under the impression the signal was for reading the speed, and you modulated the voltage input, hold on
Dec 26 15:21:02 <meyermagic> Let me test pwm to the third wire
Dec 26 15:21:04 <mistawright> what language are you working with?
Dec 26 15:21:44 <mistawright> have you exported the pins necessary to use pwm with? what os do you have on your beaglebone black?
Dec 26 15:21:52 <meyermagic> Right now, just the javascript-like thing in-browser. Once I'm sure I have everything I need, C++.
Dec 26 15:23:08 <mistawright> hmmm, I would suggest just going straight with c++ I like using derek molloys libraries.
Dec 26 15:23:19 <mistawright> you first need to make sure your pins are in a usable state
Dec 26 15:23:38 <meyermagic> Alright, I'll grab some LEDs to test with I guess and switch to SSH
Dec 26 15:23:42 <mistawright> pwm isnt just usable out of no where. you would need to load the pwm chip etc
Dec 26 15:23:55 <meyermagic> kk
Dec 26 15:24:13 <meyermagic> It's a kernel module you have to configure or something like that? OS-level, not beaglebone library?
Dec 26 15:24:26 <mistawright> I am using the 4.4 kernel on my beaglebone black with debian jessie and have been having issues getting pwm exported properly etc
Dec 26 15:24:33 <mistawright> meyermagic, device tree overlay
Dec 26 15:25:52 <mistawright> there have been changes with the way overlays are handled in the kernel, hence my inquiry on version and os you are using
Dec 26 15:27:50 <meyermagic> BeagleBoard.org BeagleBone Black rev 00C0 S/N 3615BBBK1BD1 running BoneScript 0.5.0, BeagleBoard.org Debian Image 2016-11-06,
Dec 26 15:27:50 <meyermagic> Linux beaglebone 4.4.30-ti-r64 #1 SMP Fri Nov 4 21:23:33 UTC 2016 armv7l GNU/Linux
Dec 26 15:28:50 <mistawright> meyermagic, do you have the config-pin command available?
Dec 26 15:29:01 <meyermagic> Yes
Dec 26 15:29:19 <mistawright> cat /sys/devices/platform/bone_capemgr/slots
Dec 26 15:29:33 <mistawright> does that show you have the cape-unversal enabled
Dec 26 15:29:47 <meyermagic> I believe so
Dec 26 15:29:48 <meyermagic> 4: P-O-L-   0 Override Board Name,00A0,Override Manuf,cape-universaln
Dec 26 15:30:01 <mistawright> yeah thats what i have
Dec 26 15:30:12 <mistawright> you should be able to use that tool to set your pins up
Dec 26 15:30:19 <mistawright> wether it be a gpio input or output or pwm
Dec 26 15:31:45 <meyermagic> mistawright: Thanks
Dec 26 15:32:26 <mistawright> meyermagic, im still mucking around with it so I can't say I have gotten it to the point where I can finish working on this rc car project
Dec 26 15:32:50 <mistawright> meyermagic, https://github.com/derekmolloy/exploringBB/tree/master/library
Dec 26 15:33:16 <mistawright> i like using this guys libraries for servo motors and dc motors.
Dec 26 15:35:11 <meyermagic> mistawright: Thanks, I'll check it out
Dec 26 15:36:53 <meyermagic> mistawright: So, using the config-pin command, if I flip the pin the voltage is connected to to GPIO high, the fan rotates just a tiny bit forward. If I flip it back to GPIO low, it rotates justa  tiny bit backwards.
Dec 26 15:37:18 <mistawright> which wire?
Dec 26 15:37:32 <meyermagic> mistawright: And repeatedly running "config-pin P9.14 1" doesn't make it go forward multiple times, only after coming from 0
Dec 26 15:37:42 <meyermagic> mistawright: P9.14, the PWM pin
Dec 26 15:37:45 <mistawright> sounds like you have the gpio connected to a signal wire
Dec 26 15:37:54 <mistawright> config-pin P9.14 pwm
Dec 26 15:37:59 <mistawright> sets it to a pwm pin
Dec 26 15:38:18 <meyermagic> I'd just like to see if I can use GPIO pins to make the fan spin, I'm connecting them to the voltage wire
Dec 26 15:38:24 <meyermagic> I'll get PWM working afterwards
Dec 26 15:38:37 <mistawright> brushless motors dont work that way
Dec 26 15:39:03 <meyermagic> Which part am I misunderstanding?
Dec 26 15:39:13 <mistawright> dc motor has two wires power and ground
Dec 26 15:39:21 <mistawright> brushless has three
Dec 26 15:39:32 <mistawright> the speed controller is what controls the brushless motor
Dec 26 15:40:06 <mistawright> you can connect straight voltage to a dc motor and it will spin. do that to a brushless motor and wont work as expected. will probably twitch
Dec 26 15:40:20 <mistawright> so pwm is what you need to worry about
Dec 26 15:40:28 <meyermagic> When I connect the red wire to 5V out, and the black one to ground
Dec 26 15:40:35 <meyermagic> And leave the blue wire disconnected
Dec 26 15:40:41 <meyermagic> The fan will spin continuously
Dec 26 15:40:48 <mistawright> interesting
Dec 26 15:40:55 <meyermagic> If I instead connect the red wire to 3.3V, it'll spin continuously, but slower
Dec 26 15:41:06 <meyermagic> If I connect it to P9.14 and set it to GPIO high
Dec 26 15:41:12 <meyermagic> It twitches forward once
Dec 26 15:41:15 <mistawright> then maybe what i have run into with brushless motors doesnt apply here
Dec 26 15:41:37 <meyermagic> Could be, I'm certainly confused
Dec 26 15:41:38 <mistawright> im assuming blue to P9.14?
Dec 26 15:41:44 <meyermagic> So
Dec 26 15:41:48 <meyermagic> I forget where I read it
Dec 26 15:41:54 <meyermagic> So it might be wrong
Dec 26 15:42:05 <meyermagic> But I think the blue wire is for reading the fan speed, not setting it
Dec 26 15:42:13 <meyermagic> And you just modulate the voltage wire to control the speed
Dec 26 15:42:19 <meyermagic> Or is that nonsensical?
Dec 26 15:43:39 <meyermagic> The datasheets certainly don't make it clear, so what I know is just from reading about fans in general
Dec 26 15:43:50 <mistawright> not necessarily im no expert on motors
Dec 26 15:44:12 <mistawright> could have an encoder that is read from there
Dec 26 15:44:55 <mistawright> sounds like it could definitely be for reading rpms
Dec 26 15:45:20 <mistawright> if that is the case then modulating voltage on a pin could be they way you speed it up and slow it down
Dec 26 15:45:44 <meyermagic> That's what I thought initially, but I'm increasingly doubtful
Dec 26 15:45:49 <mistawright> the pin that you have the power connected to. have you tried setting it from high to low to see if the fan stops
Dec 26 15:46:13 <meyermagic> No, I assumed those pins weren't controllable
Dec 26 15:46:14 <meyermagic> Let me try
Dec 26 15:46:21 <mistawright> pwm pin, can modulate power. would be like hooking up an led to a pwm pin
Dec 26 15:46:26 <mistawright> not the power per se
Dec 26 15:46:46 <meyermagic> The power pins are modifyable
Dec 26 15:46:59 <meyermagic> But I have tried hookup up the voltage to GPIO and PWM pins
Dec 26 15:47:02 <mistawright> ground would be connected to ground power from the fan to a gpio pin on the beaglebone
Dec 26 15:47:04 <meyermagic> Neither makes it spin
Dec 26 15:47:19 <mistawright> gpio may not be exported in the state necessary
Dec 26 15:47:25 <mistawright> which gpio pin
Dec 26 15:48:03 <meyermagic> I've been using P9.14 in either GPIO or PWM mode mostly
Dec 26 15:48:26 <meyermagic> And, listening a bit more carefully
Dec 26 15:48:36 <meyermagic> Something does happen when I switch it to PWM connected to the fan voltage
Dec 26 15:48:42 <meyermagic> It emits a high pitch tone
Dec 26 15:48:51 <meyermagic> Let me see if it changes pitch if I change the frequency
Dec 26 15:49:23 <mistawright> then you need to change frequency its for pwm
Dec 26 15:49:29 <mistawright> sounds like you are on the right track
Dec 26 15:49:48 <meyermagic> What makes me worried is just setting the pin to high doesn't make the fan spin
Dec 26 15:50:04 <meyermagic> I feel like I'm misunderstanding something fundamental
Dec 26 15:50:20 <meyermagic> Since if I understand correct, setting a GPIO pin to high and connecting it to the voltage wire
Dec 26 15:50:28 <meyermagic> Should be basically the same as connecting the voltage wire to power
Dec 26 15:55:35 <mistawright> exactly
Dec 26 15:56:01 <meyermagic> So, I can make an LED blink with the PWM pin
Dec 26 15:56:15 <meyermagic> But connecting the fan voltage to it makes it tick forwards and back
Dec 26 15:56:23 <meyermagic> So it is only moving on the rising edge, it seems like
Dec 26 15:56:24 <meyermagic> Yet
Dec 26 15:56:40 <meyermagic> If I connect the voltage wire to the 3.3V or 5V outputs
Dec 26 15:56:43 <meyermagic> It moves continuously
Dec 26 15:56:51 <meyermagic> That doesn't make sense to me
Dec 26 15:57:45 <meyermagic> And connecting the blue (third) wire to PWM while the red (voltage) wire is connected to the 5V or 3.3V doesn't seem to have any effect
Dec 26 15:57:57 <meyermagic> So I think it is for reading, or I'm not using it for writing correctly
Dec 26 15:58:12 <meyermagic> Oh!
Dec 26 15:58:15 <meyermagic> Oh man!
Dec 26 15:58:27 <mistawright> lightbulb moment
Dec 26 15:58:29 <meyermagic> I moved the voltage wire from 5V to the PWM pin
Dec 26 15:58:36 <meyermagic> And now it is spinning continuously, just very slowly
Dec 26 15:58:40 <meyermagic> I don't think the frequency I chose
Dec 26 15:58:48 <meyermagic> Was giving it long enough to get up to speed
Dec 26 15:58:53 <meyermagic> overcome standing friction
Dec 26 15:59:20 <mistawright> when you mentioned the rpm wire I figured thats what you needed to do
Dec 26 15:59:36 <mistawright> thought you had already hooked up that way
Dec 26 15:59:52 <meyermagic> I had
Dec 26 16:00:08 <meyermagic> Like I said, it spun continously only when I moved it quickly from 5V to PWM
Dec 26 16:00:13 <meyermagic> Without giving the fan time to spin down
Dec 26 16:00:17 <meyermagic> Otherwise it just twitched
Dec 26 16:00:41 <meyermagic> I still don't understand why GPIO high and 1.0 duty cycle don't make it spin
Dec 26 16:00:45 <meyermagic> But this is progress
Dec 26 16:02:21 <mistawright> datasheet would help you alot
Dec 26 16:02:31 <meyermagic> Agreed
Dec 26 16:02:34 <mistawright> then you would know what state etc pins will need to be in
Dec 26 16:02:48 <meyermagic> And interestingly
Dec 26 16:02:58 <meyermagic> If I set the PWM duty cycle to 1.0 (so always on)
Dec 26 16:03:06 <meyermagic> And switch from the 5V to the PWM pin before the fan spins down
Dec 26 16:03:16 <meyermagic> It still keeps the fan spinning, just not at full speed
Dec 26 16:03:22 <meyermagic> Seems like it keeps it from slowing down
Dec 26 16:03:26 <meyermagic> That's pretty weird
Dec 26 16:04:21 <meyermagic> So
Dec 26 16:04:42 <meyermagic> It looks like one part of the problably is that the max voltage the PWM pins can output is 3.3V
Dec 26 16:04:51 <meyermagic> Which should be fine, since the normal 3.3V output makes the fan spin
Dec 26 16:05:06 <meyermagic> But that could still mean most rates are too slow to do anything
Dec 26 16:05:23 <meyermagic> Maybe I need another relay or something
Dec 26 16:05:37 <meyermagic> To modulate 5V power according to the PWM pin
Dec 26 16:08:08 <mistawright> logic level converter
Dec 26 16:08:21 <mistawright> is the fan 5v logic only?
Dec 26 16:08:53 <meyermagic> 5V makes it spin fast, 3.3V makes it spin slower
Dec 26 16:09:15 <meyermagic> But It needs 5V power, and it looks like you are in fact supposed to modulate the power wire
Dec 26 16:10:23 <meyermagic> I can make it spin up and down according to the PWM rate now, if I spin it up manually with my finger
Dec 26 16:10:24 <meyermagic> But
Dec 26 16:10:39 <meyermagic> It is always very slow, much slower than either connected directly to 3.3V or 5V
Dec 26 16:10:46 <meyermagic> Even when the PWM duty cycle is set to 100%
Dec 26 16:12:23 <meyermagic> mistawright: Thanks again for the help
Dec 26 16:12:33 <mistawright> logic level converter I would think is the culprit but it sounds like voltage and not logic
Dec 26 16:13:01 <mistawright> yeah im not much help and Im about to be even less as I disappear to go smoke
Dec 26 16:13:44 <meyermagic> I have a MOSFET
Dec 26 16:13:47 <meyermagic> I think that might work
Dec 26 16:23:41 <meyermagic> Yes! The MOSFET works!
Dec 26 16:23:45 <meyermagic> I have fan control
Dec 26 16:29:45 <mistawright> full range of speed?
Dec 26 16:29:50 <meyermagic> Yep.
Dec 26 16:30:01 <mistawright> are you using pwm for speed now?
Dec 26 16:30:29 <meyermagic> The p-mosfet lets me switch the 5V (or up to 60V 25A) with the PWM pin
Dec 26 16:30:38 <mistawright> You just motivated me to stop bs'ing and start working on my project too
Dec 26 16:31:08 <meyermagic> mistawright: I'm glad, I just got done with a week of smoking weed and watching TV when I should have been working on projects
Dec 26 16:31:23 <meyermagic> mistawright: So it is nice to be making real progress
Dec 26 16:37:24 <mistawright> meyermagic, lol, guess im still on my week
Dec 26 16:37:53 <mistawright> im a sys admin and im busy alot. i get laid too much. so that doesnt help either. I need to buckle down
Dec 26 18:52:05 <zmatt> meyermagic: it sounds like (before you introduced the FET) you were using a I/O pin to power a fan... don't do that :P
Dec 26 18:52:18 <zmatt> it sounds like an excellent way to fry an I/O with overcurrent
Dec 26 18:52:43 <zmatt> and/or destroy it with induced voltage spikes
Dec 26 19:08:52 <paul___> I cannot get to the url http://192.168.7.2    is it hard coded to come up that way ?
Dec 26 19:09:34 <paul___> sorry, it's probably a newby question.
Dec 26 19:11:23 <paul___> is anyone on here?
Dec 26 19:15:50 <paul___> anyone?
Dec 26 19:28:04 <paul___> anyone out there ?
Dec 26 19:51:14 <paul___> anyone on this channel ?
Dec 26 20:01:10 <paul___> is anyone out there ?
Dec 26 20:05:08 <paul___> SETI ping
Dec 26 20:16:20 <zmatt> paul___: lol, you've got to have a bit of patience here... people are in different timezones and/or doing other stuff most of the time
Dec 26 20:17:09 <paul___> @zmatt, thank you
Dec 26 20:17:21 <zmatt> the usb-network stuff in the default images is set up with that hardcoded IP yes
Dec 26 20:17:55 <zmatt> if connected to ethernet I think it should get an IP via dhcp
Dec 26 20:17:57 <paul___> any newby advise if it doesn't owrk ?
Dec 26 20:18:09 <paul___> I get the drive mounted
Dec 26 20:18:20 <zmatt> that depends on quite a few things, including which host OS you're using
Dec 26 20:18:26 <paul___> linux ubuntu
Dec 26 20:18:48 <zmatt> hmm, I'd expect the usb networking to work out of the box then
Dec 26 20:19:02 <paul___> anything I can check ?
Dec 26 20:20:04 <zmatt> try "ip route" in a terminal
Dec 26 20:20:26 <paul___> it just fixed itself !!
Dec 26 20:20:30 <paul___> thank you.
Dec 26 20:20:35 <paul___> I don't know why
Dec 26 20:20:35 <zmatt> lol ok
Dec 26 20:20:47 <paul___> it just showed up in my ifconfig
Dec 26 20:20:52 <paul___> and boom, it's there
Dec 26 20:21:10 <paul___> took hours to get there
Dec 26 20:21:15 <zmatt> weird
Dec 26 20:21:20 <paul___> thank you very much
Dec 26 20:25:00 <fjdksl888> anyone else having trouble flashing mmc on the BBBW?
Dec 26 20:25:11 <fjdksl888> it's killing me
Dec 26 20:25:34 <mistawright> whats BBBW?
Dec 26 20:25:36 <zmatt> I don't think it should be any different from the regular BBB ?
Dec 26 20:25:40 <fjdksl888> wireless
Dec 26 20:25:41 <zmatt> mistawright: black wireless
Dec 26 20:25:55 <mistawright> zmatt, so many more boards now
Dec 26 20:26:30 <zmatt> it's like the BBGW, but with less idiocy
Dec 26 20:28:31 <zmatt> it also uses that comically huge OSD335x, and schematic design in Eagle (hence looking absolutely horrible, like schematics made in Eagle always seem to do)
Dec 26 20:28:58 <mistawright> zmatt, maybe you can help me. I have been trying to figure out how pwm works with the new kernels. I am using a 4.4 kernel and config-pin seems to be working and cape-universaln is loaded. I am able to set for instance P8.13 to pwm mode. Do I need to load the am33xx cape to enable pwm like we used to have? Are there any good guides you can point me to. I have been finding out little by little and can't seem to get good info
Dec 26 20:29:00 <mistawright> lol
Dec 26 20:29:34 <zmatt> mistawright: I'd guess probably cape-universal already enabled the pwm peripheral hence you only need to export the pins?
Dec 26 20:30:10 <zmatt> did you check /sys/class/pwm ?
Dec 26 20:30:23 <mistawright> how about working with them from the command line. I looked under /sys/class/pwm i believe and saw what appeared to be 5 pwm chips loaded
Dec 26 20:30:39 <fjdksl888> I have any number of images I can boot from SD just fine, but when I try to flash I get the "night rider" pattern, wait for it to stop, boot, nothing
Dec 26 20:30:55 <zmatt> fjdksl888: weird
Dec 26 20:31:05 <mistawright> do you have a serial cable?
Dec 26 20:31:21 <zmatt> mistawright: yes that's typical cape-universal... everything is enabled
Dec 26 20:31:26 <fjdksl888> ordered but not arrived
Dec 26 20:32:05 <zmatt> e.g. all PWM peripherals are already enabled but not muxed to any pins by default (the peripheral doesn't know this though), config-pin merely changes pinmux
Dec 26 20:33:27 <zmatt> so you need to locate the appropriate pwm peripheral (note: their sequential numbering cannot be assumed to be stable) and export the right pwm output (0-1 for A/B, or just 0 for single-output pwm peripherals)
Dec 26 20:35:16 <zmatt> fjdksl888: difficult to debug without
Dec 26 20:35:32 <zmatt> fjdksl888: I don't think I've seen many people here yet with problems like what you're describing
Dec 26 20:35:36 <zmatt> if any
Dec 26 20:35:55 <zmatt> mistawright: can you pastebin ls -l /sys/class/pwm ?
Dec 26 20:36:20 <mistawright> ls /sys/class/pwm/
Dec 26 20:36:20 <mistawright> pwmchip0  pwmchip2  pwmchip4  pwmchip6	pwmchip7
Dec 26 20:36:26 <zmatt> the -l part is kinda important
Dec 26 20:36:47 <fjdksl888> yeah, that's what I figured, I'll just have to wait for the cable
Dec 26 20:36:50 <fjdksl888> thx
Dec 26 20:36:53 <mistawright> wow, didnt realize those were symlinks but that would make sense
Dec 26 20:37:01 <zmatt> I was gonna say I can't magically guess what each pwm is, but I think I might be able to
Dec 26 20:37:32 <zmatt> it seems plausible pwmchip0/2/4 are the three eHRPWM instances?
Dec 26 20:37:45 <mistawright> definitely are the other two ecap
Dec 26 20:38:35 <zmatt> so, P8.13 is pwm2b, so you'll need pwmchip4 and then export its pwm1 output
Dec 26 20:39:27 <zmatt> tip, in your .bashrc add:  alias ls='ls --color=auto --file-type'
Dec 26 20:39:36 <zmatt> makes it much easier to recognize things :)
Dec 26 20:41:35 <phschafft> ha, just added --color myself to the bashrc of a technical role account ;)
Dec 26 20:42:17 <mistawright> will do
Dec 26 20:42:31 <mistawright> zmatt, http://pastebin.com/FVePfPaB those are my symlinks
Dec 26 20:43:11 <zmatt> phschafft: --color=auto is recommended over --color, otherwise you'll end up with color formatting codes in the output even if you send it somewhere other than to a terminal
Dec 26 20:44:03 <zmatt> mistawright: yep, so my guess was correct, pwmchip4 is ehrpwm2
Dec 26 20:44:13 <phschafft> zmatt: read the above as 'a --color argument'.
Dec 26 20:44:19 <zmatt> phschafft: ok :)
Dec 26 20:45:02 <zmatt> mistawright: so head there and play around.. iirc there's a write-only "export" attribute to which you'll want to write 1 (indicating the B output)
Dec 26 20:45:16 <phschafft> I'm not to keen typing more than needed. and most of the time people understand me. but I think it's good someone did the clarification in a channel like this, with many people around that are new to the magic of a powerfull shell.
Dec 26 20:45:33 <mistawright> zmatt, config-pin doesnt set the pwm as an output?
Dec 26 20:47:27 <zmatt> mistawright: it configures the pinmux of that pin, i.e. causes P8.13 to be attached to output B of the ehrpwm2 peripheral
Dec 26 20:47:45 <mistawright> ok cool
Dec 26 20:48:28 <zmatt> (to be more precise, it sets the values in the pinconf array entry, i.e. the mux, pull, and input-enable settings)
Dec 26 20:49:08 <zmatt> exporting a pwm means you're asking for direct userspace control over it
Dec 26 20:49:17 <zmatt> (similar to what exporting a gpio does for gpios)
Dec 26 20:51:55 <mistawright> so at this point the pins can be worked with kind of like how they were with the 3.8 kernel? I am assuming i set frequency etc at this point for said pin?
Dec 26 20:52:14 <zmatt> I have no idea how things worked on a 3.8 kernel, I'm not that deeply into archeology
Dec 26 20:52:36 <mistawright> how would i set period etc through sysfs at this point?
Dec 26 20:53:10 <zmatt> have you tried exporting the pwm yet?
Dec 26 20:53:17 <mistawright> i have
Dec 26 20:53:45 <zmatt> anything relevant appeared in sysfs? probably as a subdirectory of the pwmchip
Dec 26 20:54:32 <zmatt> (I'm guessing here since I'm too lazy to reboot a beaglebone into a DT where I can check this myself)
Dec 26 20:55:00 <mistawright> a pwm1 folder appeared
Dec 26 20:55:04 <zmatt> lo and behold
Dec 26 20:59:14 <mistawright> i had movement on my servo
Dec 26 20:59:21 <zmatt> woo
Dec 26 20:59:40 <mistawright> zmatt, thanks for the help. now its just me learning some more about how things are handled now
Dec 26 21:00:06 <mistawright> why is there no updated guide on this info. I know things are changing quickly though
Dec 26 21:00:22 <zmatt> because noone has written one yet?
Dec 26 21:00:46 <zmatt> ¯\_(ツ)_/¯
**** ENDING LOGGING AT Tue Dec 27 03:00:01 2016