#linuxcnc-devel | Logs for 2014-01-27

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[00:18:33] <owhite> hey people - does anyone have any experience with setting hm2_5i20.0.pwmgen.pwm_frequency at run time?
[00:20:12] <micges> owhite: what are you trying to do?
[00:20:56] <owhite> I'm using gladevcp. I'd like to tie a couple buttons to changing the pwm_frequency.
[00:21:09] <owhite> After I start up the ui, I am to perform...
[00:21:28] <owhite> $ halcmd setp hm2_5i20.0.pwmgen.pwm_frequency 500
[00:21:46] <owhite> that works fine, it will change the frequency of my mesa board.
[00:21:57] <owhite> but when I try this, I get an error...
[00:22:11] <micges> what error?
[00:22:13] <owhite> $ halcmd net n1 hm2_5i20.0.pwmgen.pwm_frequency pwm_tab.laser_hertz_value
[00:22:23] <micges> ah
[00:22:32] <owhite> Pin 'hm2_5i20.0.pwmgen.pwm_frequency' does not exist
[00:22:40] <micges> you can't net it, it's parameter
[00:22:44] <owhite> ^^ the error.
[00:22:55] <owhite> Oh, well but why does the setp work?
[00:23:21] <micges> you can net pins only, but you can setp everything settable
[00:23:21] <owhite> well, I can accept that you can setp some parameters, but cant net them. Can you think of a work around?
[00:23:28] <owhite> ok.
[00:24:12] <micges> fastest is to patch source code to convert it to pin
[00:24:44] <owhite> that would be good advice for most people deserving to be on this channel, but not for me.
[00:24:46] <owhite> :-)
[00:25:32] <owhite> so the UI code that creates a button is glade, and I have a .py program associated with the glade ui. I could try to do the setp there.
[00:26:01] <owhite> But so far the code has not been able to find hm2_5i20.0.pwmgen.pwm_frequency.
[00:26:34] <micges> ?
[00:27:35] <micges> it will work if you will be able to run 'setp etc' on button click, that;'s all
[00:27:35] <owhite> bear with me, I can pastebin some code...
[00:27:43] <micges> ok
[00:27:50] <owhite> hang on...
[00:32:07] <owhite> please have a look at http://www.pastebin.ca/2589538 line 47
[00:33:00] <owhite> the button press gets to that line, and then gives me attitude when I run: print self.halcomp["hm2_5i20.0.pwmgen.pwm_frequency"]
[00:34:33] <micges> no no
[00:36:04] <owhite> I gues if I could find the documentation on the python hal components I wouldnt be wasting your time. I think i'd try to have hal do the setp.
[00:36:07] <micges> try this: http://www.pastebin.ca/2589541
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[00:37:03] <owhite> well hey break out the sledge hammer and use a system call :-)
[00:40:29] <micges> :)
[00:43:43] <owhite> cant argue with success. It worked.
[00:44:16] <micges> cool
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[02:37:58] <CaptHindsight> for testing sebs x86 RTAI (memleak) debs, does the desktop choice matter?
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[02:43:31] <memleak> in theory linuxcnc does not touch anything window or desktop manager related features except maybe adding icons to the desktop or start menu. RTAI only touches the kernel side of things and the kernel runs completely independent from the X window system and Xorg server.
[02:45:15] <memleak> certain kernel patches however outside the official kernel source can limit the X server from functioning, such as patches from pax and grsecurity, mainly by restricting access to certain parts of system and video memory, but that's a whole other story.
[02:58:11] <seb_kuzminsky> CaptHindsight: i agree with memleak, the desktop environment shouldnt matter
[02:59:33] <CaptHindsight> ok, it's your fault if I waste 20 minutes downloading thew wrong version :)
[02:59:46] <CaptHindsight> thew/the
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[03:04:47] <seb_kuzminsky> heh yeah, let me know if you find one that doesn't work
[03:08:51] <CaptHindsight> I'll be able to compare kernels and also of EFI vs coreboot later this week on the http://www.asrock.com/mb/overview.asp?Model=E350M1
[03:10:59] <CaptHindsight> the live cd updated to EMC 2.5 with EFI is ~9k max jitter after 5 days
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[03:21:35] <seb_kuzminsky> i'm curious how rtai compares to rt-preempt and xenomai
[03:21:49] <seb_kuzminsky> i just pushed a xenomai kernel for precise to the linuxcnc.org deb archive
[03:21:57] <seb_kuzminsky> the rt-preempt kernel from wheezy runs fine in precise
[03:22:01] <seb_kuzminsky> bbl
[03:24:13] <jepler> I notice there's linux-image-3.12-1-rt-amd64 in Debian Jessie. I should give it a whirl, even if just on a laptop.
[03:27:22] <skunkworks> I have an asus laptop (i5) that has pretty decent latency.. <50us iirc. Good enough for rt_preempt and mesa ethernet hardware
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[03:44:01] <KGB-linuxcnc> 03Jeff Epler 05master df32629 06linuxcnc 10docs/src/config/ini_config.txt 10docs/src/config/stepconf_es.txt 10docs/src/gcode/gcode.txt 10docs/src/hal/rtcomps.txt Merge branch 'v2.5_branch' * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=df32629
[03:44:12] <KGB-linuxcnc> 03Jeff Epler 05v2.5_branch 4dc4a1a 06linuxcnc fast forward * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=4dc4a1a
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[03:48:21] <cradek> weird - I wonder what kgb means by "fast forward" there
[03:48:51] <cradek> the commit looks right
[03:58:56] <jepler> huh, beats me
[03:58:57] <jepler> 'night
[04:02:06] <seb_kuzminsky> i dont understand the commit
[04:04:09] <cradek> by "looks right" I meant he committed what he intended to
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[04:17:09] <cradek> seb_kuzminsky: I think I understand it. those are all time_t (longs) and it overflows because a long can't hold the time in nanoseconds for very long
[04:20:42] <cradek> sticking a long-long in there (anywhere) causes them all to be promoted and the math all happens in long-long space
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[04:54:52] <seb_kuzminsky> aha, makes sense, thanks
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[07:45:08] <CaptHindsight> http://www.asrock.com/mb/overview.asp?Model=E350M1 12.04 RTAI with EFI is also ~9k max jitter
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[12:19:09] <memleak> i know we have some ARM users here like people running the beaglebone black with linuxcnc but is anyone here interested in heavily optimized ARM toolchains? i'm a crosstool-ng dev now and i'll be working on the ARM side of things for awhile in case anyone is interested in that sort of thing.
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[16:11:53] <skunkworks> cradek, did you see... current http://electronicsam.com/images/KandT/testing/screenshots/Screenshot%20from%202014-01-26%2014:42:11.png
[16:12:12] <skunkworks> New http://electronicsam.com/images/KandT/testing/screenshots/Screenshot%20from%202014-01-26%2014:34:21.png
[16:12:49] <skunkworks> for this simple program http://electronicsam.com/images/KandT/testing/screenshots/Screenshot%20from%202014-01-26%2014:53:00.png
[16:14:07] <skunkworks> notice the parabolic blends on the entry/exit.. (As I understand it the entry is because at that point he has not done any readahead yet - the last is because he doesn't know if it is the end of the program)
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[16:27:54] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 688f47a 06linuxcnc 10debian/rules.in deb/rules: remove unused python_version * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=688f47a
[16:27:54] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 16c3ca7 06linuxcnc 10debian/rules.in deb/rules: dont need to care about BUILD_SYS * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=16c3ca7
[16:27:54] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb d823f6c 06linuxcnc 10debian/.gitignore deb: dont ignore package-dirs we no longer build * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=d823f6c
[16:27:56] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 26c0e99 06linuxcnc 10(16 files) deb: new debian/configure and debian/control* * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=26c0e99
[16:28:00] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 5bb9d79 06linuxcnc 10debian/configure 10debian/rules.in deb: fix the debian/{control/rules} remaking rules * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=5bb9d79
[16:28:04] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 6f69003 06linuxcnc 10(6 files in 2 dirs) add a linuxcnc-test.deb, with all the tests in it * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=6f69003
[16:28:08] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb fb04ca2 06linuxcnc 10debian/configure deb/conf: accept -a to mean -r * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=fb04ca2
[16:28:12] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 2f29c1d 06linuxcnc 10debian/control.in deb/control: get rid of ancient Provides in control * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=2f29c1d
[16:28:15] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 023ad2b 06linuxcnc 10debian/control.posix.in 10debian/control.rtai.in 10debian/control.rtpreempt.in deb/control: relax the Conflicts * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=023ad2b
[16:28:20] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 1845f37 06linuxcnc 10debian/rules.in deb/rules: dont use cpio when cp will do * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=1845f37
[16:28:24] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 464aca9 06linuxcnc 10debian/linuxcnc.files.in 10src/Makefile install rsyslogd.conf file * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=464aca9
[16:28:27] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb a707037 06linuxcnc 10src/configure.in 10src/rtapi/ulapi_autoload.c give dlopen the path to the ulapi library * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=a707037
[16:28:32] <KGB-linuxcnc> 03Sebastian Kuzminsky 05seb/ubc3-deb 9d45fc8 06linuxcnc 10src/Makefile 10src/rtapi/Submakefile put ulapi-$flavor.so straight into rtlib/, not lib, so the dlopen can look in EMC2_RTLIB_DIR * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=9d45fc8
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[17:40:03] <linuxcnc-build> build #31 of deb-precise-rtpreempt-binary-x86 is complete: Failure [4failed apt-get-update shell_2] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-rtpreempt-binary-x86/builds/31 blamelist: dummy, Sebastian Kuzminsky <seb@highlab.com>
[17:40:08] <linuxcnc-build> build #31 of deb-precise-rtpreempt-binary-amd64 is complete: Failure [4failed apt-get-update shell_2] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-rtpreempt-binary-amd64/builds/31 blamelist: dummy, Sebastian Kuzminsky <seb@highlab.com>
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[17:57:43] <seb_kuzminsky> i'm looking at 2.6 todo item #3.1, http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Todo-2.6
[17:57:50] <seb_kuzminsky> "which realtime kernels should we ship/support"
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[17:58:23] <CaptHindsight> other than ones that work well?
[17:59:13] <seb_kuzminsky> i'm currently thinking: rtai (32 bit) on precise and wheezy, xenomai (32 and 64 bit) on precise and wheezy, and rt-preempt (32 and 64 bit) on wheezy (because debian's done that work for us)
[17:59:47] <seb_kuzminsky> i'm also thinking we might want to re-publish the debian.org rt-preempt debs in our precise deb archive
[17:59:55] <seb_kuzminsky> does that sound like a reasonable set?
[18:00:22] <seb_kuzminsky> CaptHindsight: i only want to ship/support kernels that work well ;-)
[18:01:06] <CaptHindsight> memleak was getting the GPU hardware accel driver working on the E350M1, after that we can test any RTAI, xenomai and preempt-rt kernels
[18:01:43] <seb_kuzminsky> that's great
[18:01:45] <CaptHindsight> Precise installed fglrx or something slow
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[18:02:56] <CaptHindsight> I need hardware video and >4GB of memory, not sure if anyone else does
[18:03:18] <seb_kuzminsky> those both sound like good things to have ;-)
[18:03:48] <CaptHindsight> seb_kuzminsky: we can add debian to the test board here, any suggestions on which version or versions to test?
[18:04:26] <seb_kuzminsky> wheezy (debian 7) is the current stable release, that's what i'd suggest
[18:04:45] <seb_kuzminsky> i recently added a wheezy rt-preempt buildslave, but then the vm host lost its power supply :-(
[18:04:51] <seb_kuzminsky> hoping to have it back up later this week
[18:05:08] <CaptHindsight> does the installer work? I only ask because one recent attempt had a broken installer, I forget the version
[18:05:15] <seb_kuzminsky> worked fine for me
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[18:05:38] <seb_kuzminsky> i guess we should also support wheezy/xenomai/armhf, for the beaglebone black
[18:07:13] <CaptHindsight> seb_kuzminsky: wheezy i386 or ia64? or should we install both for help with testing?
[18:07:42] <seb_kuzminsky> not ia64
[18:07:56] <seb_kuzminsky> use amd64 instead
[18:08:17] <seb_kuzminsky> sure, it would be great if you could test both, thank you!
[18:09:19] <CaptHindsight> seb_kuzminsky: we should have the cubieboard (dual core arm cortex-a7 + mali400) working shortly, preempt-rt was ~80uS
[18:10:08] <CaptHindsight> not sure what your timing is for the next release
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[18:11:31] <seb_kuzminsky> me neither :-/
[18:12:04] <seb_kuzminsky> the main blocker right now is getting ubc merged, and the closer we look at it the more work it looks like it needs :-/
[18:12:27] <seb_kuzminsky> cradek and zultron and i are working on it, but i dont have an eta date
[18:13:42] <CaptHindsight> we are building from scratch since all the ISO's had broken distro's and the tool chains were full of magic
[18:14:32] <seb_kuzminsky> for the cubieboard you mean? yeah the arm world is not as mature/settled as x86, that's for sure
[18:15:00] <CaptHindsight> yes, the cubieboard, getting Gentoo + preempt-rt and RTAI with EMC on the board now
[18:15:28] <CaptHindsight> someone could take that and get Debian working on it
[18:15:32] <seb_kuzminsky> whaaa? rtai on arm, really? that's awesome
[18:16:39] <CaptHindsight> someone could probably get xenomai going as well
[18:17:16] <seb_kuzminsky> xenomai already runs on arm (bbb) so it should(?) be a small leap
[18:17:44] <CaptHindsight> seb_kuzminsky: I forget how much space EMC takes in memory
[18:18:01] <CaptHindsight> and I'm too lazy to walk into the other room and find out :)
[18:18:12] <seb_kuzminsky> bbl
[18:19:01] <CaptHindsight> we can get Linux and BIOS in flash and go from power-on to desktop in ~2 sec
[18:19:21] <CaptHindsight> if we can fit linuxcnc into flash it might be 3 sec
[18:20:18] <linuxcnc-build> build #31 of deb-precise-xenomai-binary-amd64 is complete: Failure [4failed apt-get-update shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-xenomai-binary-amd64/builds/31 blamelist: dummy, Sebastian Kuzminsky <seb@highlab.com>
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[18:38:34] <linuxcnc-build> build #1330 of deb-lucid-rt-binary-i386 is complete: Failure [4failed shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-lucid-rt-binary-i386/builds/1330 blamelist: dummy, Sebastian Kuzminsky <seb@highlab.com>
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[19:44:36] <memleak> "getting the GPU hardware accel driver working on the E350M1" and ended up breaking KDE for.. unknown reasons...
[19:49:00] <CaptHindsight> this is why we don't like wasting time on Ubuntu
[19:50:49] <memleak> kde4[1559]: segfault at <address> error 4 in ld-2.15.so [address] and kcminit_startup[1564]: seg fault at <address> error 4 in ld-2.15.so[address]
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[19:52:21] <memleak> switching X drivers should never cause a seg fault in anything except the driver itself
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[20:00:38] <CaptHindsight> do we waste time installing a different desktop or try debian?
[20:02:19] <CaptHindsight> every time we mess with Ubuntu we find some mystery magic to make it work just because they wanted to build differently or just randomly rename things
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[23:08:03] <cradek> often, broken opengl makes every gl thing crashy
[23:08:15] <cradek> I think kde4 might be a gl thing (crazily)
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[23:13:16] <seb_kuzminsky> but! wobbly windows!
[23:13:21] <seb_kuzminsky> you old curmudgeon
[23:13:30] <cradek> that stuff...
[23:13:39] <cradek> I just can't even
[23:13:52] * cradek madly types into irssi
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[23:19:37] <seb_kuzminsky> cradek's like, dafuq.png
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[23:24:45] <cradek> jellovision
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[23:33:54] <mozmck> if half the work put into flashy graphics were put into actual usability, open source software would be worlds ahead...
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[23:45:20] <memleak> mozmck, compiz is the future of linux :P
[23:46:03] <mozmck> as long as it works and they quit removing features - I don't care!
[23:46:49] <mozmck> I thought compiz was already mostly abandoned for something else now?
[23:47:22] <memleak> meh i wouldn't know, i run openbox
[23:47:46] <memleak> i used ratpoison a little bit but i really like lxde and openbox
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[23:51:05] <memleak> my favorite is still /dev/ttyS0
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[23:54:52] <mozmck> I almost went to lxde - I like it pretty well
[23:55:45] <mozmck> xfce is nice, but I'm using Cinnamon now - mainly because I like rabbitVCS integration in Nemo and a couple other Nemo features.
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