Re: [Emc-users] HAL: two pins for same function without or2 ?

2013-09-11 Thread Erik Christiansen
On 10.09.13 20:34, Russell Brown wrote:
> Quoth andy pugh.
> Ah...  so I can't connect pyvcp.x-minus and xhc-hb04.jog.minus-x to
> halui.jog.0.minus, without an or2, because of:
> 
> >An OUT pin can be connected only if there are no other OUT or IO pins on
> >the signal 
> 
> Which one could paraphrase as being "An IN can only have one OUT
> connected to it".
> 
> Isn't English wonderful :-)

Yup.

It's analogous to TTL or CMOS logic; what's not permitted is connecting
two OUTs together, because of contention. The two outputs will at times
have different states, but a common connection can only ever have one at
any instant.

In software logic, the only consequence is an undefined state, but in
any hardware logic family with totem-pole outputs, connecting two
contending outputs will try to short-circuit the power supply. That can
let the magic smoke out.

Erik

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Re: [Emc-users] Unified Build/ "new RTOS" work: general availability for testing

2013-09-11 Thread Michael Haberler

Am 11.09.2013 um 08:47 schrieb Thomas Kaiser :

> On 09/11/2013 08:28 AM, Sebastian Kuzminsky wrote:
>> You need libreadline-dev. dpkg-checkbuilddeps will tell you.
> 
> Thanks, now Tcl and Tk is missing.
> 
> Looks like I have to figure out all the dependencies...
> 
> I will post what else I had to install for compiling LinuxCNC.
> 
> Regards, Thomas

this might be a starting point: 
http//static.mah.priv.at/public/xenomai-debs/install-packages-for-build-on-12.04-pristine.sh

-m


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Re: [Emc-users] Unified Build/ "new RTOS" work: general availability for testing

2013-09-11 Thread Thomas Kaiser
On 09/11/2013 12:10 PM,Michael Haberler wrote:
> this might be a starting point: 
> http//static.mah.priv.at/public/xenomai-debs/install-packages-for-build-on-12.04-pristine.sh-m

Now, I have it running on Ubuntu 12.04 64bit.

I installed a lot:

sudo apt-get install debhelper libpth-dev dvipng texlive-extra-utils \
texlive-latex-recommended texlive-fonts-recommended texlive-lang-french \
texlive-lang-spanish tcl8.5-dev tk8.5-dev bwidget libxaw7-dev 
libncurses-dev \
libreadline-dev asciidoc source-highlight \
dblatex xsltproc groff python-lxml libglu1-mesa-dev libgl1-mesa-dev

gave me:

Note, selecting 'libncurses5-dev' instead of 'libncurses-dev'
The following extra packages will be installed:
dh-apparmor docbook-dsssl docbook-utils docbook-xsl html2text jadetex 
lacheck latex-beamer latex-xcolor libdrm-dev libdrm-nouveau2 
libfontconfig1-dev
libfreetype6-dev libkms1 libosp5 libostyle1c2 libreadline6-dev 
libsgmls-perl libsource-highlight-common libsource-highlight4 libsp1c2 
libtinfo-dev
libxext-dev libxft-dev libxml2-utils libxmu-dev libxmu-headers 
libxpm-dev libxrender-dev libxss-dev lynx lynx-cur mesa-common-dev 
openjade pgf
preview-latex-style prosper ps2eps psutils sgmlspl sp texlive 
texlive-bibtex-extra texlive-fonts-recommended-doc 
texlive-generic-recommended
texlive-latex-base texlive-latex-base-doc texlive-latex-extra 
texlive-latex-extra-doc texlive-latex-recommended-doc texlive-math-extra 
texlive-pictures
texlive-pictures-doc texlive-pstricks texlive-pstricks-doc tipa 
x11proto-render-dev x11proto-scrnsaver-dev x11proto-xext-dev xmlto

next, glib was missing:

sudo apt-get install libglib2.0-dev

The following extra packages will be installed:
libpcre3-dev libpcrecpp0

and finally GTK2 was missing:

sudo apt-get install libgtk2.0-dev

The following extra packages will be installed:
libatk1.0-dev libcairo-script-interpreter2 libcairo2-dev 
libgdk-pixbuf2.0-dev libpango1.0-dev libpixman-1-dev libpng12-dev 
libxcb-render0-dev
libxcb-shm0-dev libxcomposite-dev libxcursor-dev libxdamage-dev 
libxfixes-dev libxi-dev libxinerama-dev libxrandr-dev x11proto-composite-dev
x11proto-damage-dev x11proto-fixes-dev x11proto-randr-dev 
x11proto-xinerama-dev

I don't know if all these packages are needed...

Anyway, it's running know. Kernel 3.2.0-53-generic

Next I will try this on my Ubuntu 13.04.

Thomas






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[Emc-users] Seeking Motherboard Recommendations

2013-09-11 Thread Matt Shaver
I might (hopefully) be doing a few new linuxcnc retrofit projects so I
was wondering what everyone likes these days for motherboards. May basic
requirements are:

MiniITX Form Factor
(1) PCI slot for a Mesa 5i25 (or alternatively a PCI-E slot for a 6i25)
Predictable enough latency to avoid the dreaded "real time error" popups
Cheap would also be nice :)

Also, any recommendations on touch screen setups that work with minimal
hacking would be welcome as well!

Thanks,
Matt

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Re: [Emc-users] Seeking Motherboard Recommendations

2013-09-11 Thread Kirk Wallace
On 09/11/2013 07:39 AM, Matt Shaver wrote:
> I might (hopefully) be doing a few new linuxcnc retrofit projects so I
> was wondering what everyone likes these days for motherboards. May basic
> requirements are:
>
> MiniITX Form Factor
> (1) PCI slot for a Mesa 5i25 (or alternatively a PCI-E slot for a 6i25)
> Predictable enough latency to avoid the dreaded "real time error" popups
> Cheap would also be nice :)
>

I got a couple of these HP DC7900 computers recently:
http://www.ebay.com/itm/300962992355

With "idle=poll" in grub, I have gotten 5000ns latencies. There might be 
a USFF form of this but they tend to not have any slots. Also, I have no 
idea if just having a Core 2 Duo will give these latency numbers. The 
DC7800 seems to have similar latencies.

> Also, any recommendations on touch screen setups that work with minimal
> hacking would be welcome as well!

I have also been looking at these, but haven't bought one yet, so I'm 
not much help here. I'm tending towards having real buttons placed on 
the monitor perimeter instead.

>
> Thanks,
> Matt

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Re: [Emc-users] BBB - hal input pin setup

2013-09-11 Thread Klemen Dovrtel
Thank you! This solved the problem :)

Regards
Klemen




 From: Troy Jacobson 
To: Klemen Dovrtel ; Enhanced Machine Controller 
(EMC)  
Sent: Wednesday, September 11, 2013 6:17 AM
Subject: Re: [Emc-users] BBB - hal input pin setup
 


The bb_gpio.p8.in-** are always two digit numbers, so bb_gpio.p8.in-03 should 
work. 

The "without becoming ready" is probably indicating that the gpio pin isn't 
correctly configured elsewhere, like the dts file.  Did you compile the dts 
file after editing (that was one of the first things I had to learn about)?  
sudo ./dtc.sh should do the trick.  I think your dts file looks good for using 
pin 7.

In the setup.sh file, I think 36 should be changed to 66 for using pin 7.



On Tue, Sep 10, 2013 at 2:32 PM, Klemen Dovrtel  
wrote:

I was reading the tutorial/explanation 
(http://bb-lcnc.blogspot.com/2013/07/adding-homelimit-switches.html) for BBB 
hal setup and i tried to test it myself. I wrote a simple hal file to test the 
gpio input and output. I used the p8.7 as input and p8.11 and p8.13 as output:
>
>
>loadrt hal_bb_gpioinput_pins=103 output_pins=111,113
>
>net gpiopulse siggen.1.clock => bb_gpio.p8.out-11 bb_gpio.p8.out-13
>
>#net intoout bb_gpio.p8.in-3 => bb_gpio.p8.out-13
>
>
>This works fine, i can see the leds blinking. There are also no errors about 
>the pin 103 usage - strange.
>
>
>But if i change the  input_pin103 to 107, i get an error:
>Waiting for component 'hal_bb_gpio' to become 
>ready..
>ledtets.hal:11: /home/linuxcnc/linuxcnc/bin/rtapi_app exited without becoming 
>ready
>ledtets.hal:11: insmod failed, returned -1
>
>If try to use the 103 again and "net intoout bb_gpio.p8.in-3 => 
>bb_gpio.p8.out-13"
>I get a different error: ledtets.hal:31: Pin 'bb_gpio.p8.in-3' does not exist
>
>I have no idea what could be wrong. Can some please give me a hint for an 
>error. Any suggestion would be greatly appreciated.
>
>I pasted my setup/config and console outputs below:
>
>
>
>-
>
>$ sudo cat /sys/kernel/debug/gpio
>GPIOs 0-31, gpio:
> gpio-9   (sysfs   ) out lo
> gpio-13  (sysfs   ) out lo
>
>GPIOs 32-63, gpio:
> gpio-36  (sysfs   ) in  hi
> gpio-52  (eMMC_RSTn   ) out lo
>
>GPIOs 64-95, gpio:
>
>GPIOs 96-127, gpio:
>
>-
>$ sudo cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pingroups
>registered pin groups:
>group: pinmux_userled_pins
>pin 21 (44e10854)
>pin 22 (44e10858)
>pin 23 (44e1085c)
>pin 24 (44e10860)
>
>group: pinmux_rstctl_pins
>pin 20 (44e10850)
>
>group: pinmux_i2c0_pins
>pin 98 (44e10988)
>pin 99 (44e1098c)
>
>group: pinmux_i2c2_pins
>pin 94 (44e10978)
>pin 95 (44e1097c)
>
>group: ledtest_pins
>pin 36 (44e10890)
>pin 13 (44e10834)
>pin 9 (44e10824)
>
>
>--BB-HAL-LEDTEST-00A0.dts---
>/dts-v1/;
>/plugin/;
>
>/ {
>    compatible = "ti,beaglebone", "ti,beaglebone-black";
>
>    /* identification */
>    part-number = "BB-LCNC-BEBOPR";
>    version = "00A0";
>
>    /* state the resources this cape uses */
>    exclusive-use =
>    /* the pin header uses */
>    "p8.7", /* gpio */
>    "p8.11",    /* gpio */
>    "p8.13";    /* gpio */
>
>
>    fragment@0 {
>    target = <&am33xx_pinmux>;
>    __overlay__ {
>
>    ledtest_pins: ledtest_pins {
>    pinctrl-single,pins = <
>    0x90 0x3f   /* p8.7  input, 
>pull-up, mode 7 */
>    0x34 0x0f   /* p8.11 output, mode 
>7 */
>    0x24 0x0f   /* p8.13 output, mode 
>7 */
>    >;
>    };
>    };
>    };
>
> fragment@1 {
>    target = <&pruss>;
>    __overlay__ {
>    status = "okay";
>
>    pinctrl-names = "default";
>    pinctrl-0 = <&ledtest_pins>;
>
>    };
>    };
>
>--setup.sh---
>for DTBO in BB-HAL-LEDTEST ; do
>
>    if grep -q $DTBO $SLOTS ; then
>    echo $DTBO overlay found
>    else
>    echo Loading $DTBO overlay
>    sudo -A su -c "echo $DTBO > $SLOTS" || dtbo_err
>    sleep 1
>    fi
>done;
>
>#if [ ! -r /sys/devices/ocp.*/helper.*/AIN0 ] ; then
>#   echo Analog input files not found in /sys/devices/ocp.*/helper.* >&2
>#   exit 1;
>#fi
>
>if [ ! -r /sys/class/uio/uio0 ] ; then
>    echo PRU control files not found in /sys/class/uio/uio0 >&2
>    exit 1;
>fi
>
># Export GPIO pins
># This really only ne

Re: [Emc-users] Seeking Motherboard Recommendations

2013-09-11 Thread Bruce Layne
I started out using used PCs off Craig's List.  I'd pop in the LinuxCNC 
LiveCD and test the latency to ensure it would work with LinuxCNC.  I 
had good luck with that inexpensive strategy.

Lately, I've been using PC motherboards inside the electronics cabinet 
for a more finished and less cobbled together appearance.  I buy the 
motherboard, RAM, power supply and hard drive.  I use 64 GB solid state 
drives.  I use 4 GB of RAM to hopefully avoid needing to access the swap 
partition on the SSD and eventually wear out the flash memory.  I tried 
using small solid state DC to DC converters for the PC power supply 
(MiniBox) and while they'd power the low power Atom based motherboards, 
there wasn't enough left to power the 5V logic for the motor drives, so 
I just get a regular old ATX PC power supply, making sure it has the 
connectors the motherboard needs.

I did a couple of machines with the popular Intel D525MW motherboards.  
They worked well for me, but they're now discontinued and harder to 
find.  The machine I'm about to build (24" X 24" CNC Router) is using 
the Intel D2500.

http://www.newegg.com/Product/Product.aspx?Item=N82E16813135339

I also used two sticks of the following G.SKILL RAM.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231212

I don't have any time on the new machine that I'm building, but I tested 
the D2500 setup in one of my previous machines and it seems to work well.

I haven't used the PCI on any of these Intel motherboards, but they're 
reported to work well.  I've used them in simple machines, with parallel 
port I/O controlling stepper motors.  I use the small wireless Logitech 
K400 keyboards and the wired pendants from JogIt! I'd like to try a 
touch screen interface some time.

Good luck!



On 09/11/2013 10:39 AM, Matt Shaver wrote:
> I might (hopefully) be doing a few new linuxcnc retrofit projects so I
> was wondering what everyone likes these days for motherboards. May basic
> requirements are:
>
> MiniITX Form Factor
> (1) PCI slot for a Mesa 5i25 (or alternatively a PCI-E slot for a 6i25)
> Predictable enough latency to avoid the dreaded "real time error" popups
> Cheap would also be nice :)
>
> Also, any recommendations on touch screen setups that work with minimal
> hacking would be welcome as well!
>
> Thanks,
> Matt


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Re: [Emc-users] Seeking Motherboard Recommendations

2013-09-11 Thread Marcus Bowman

On 11 Sep 2013, at 15:39, Matt Shaver wrote:

> I might (hopefully) be doing a few new linuxcnc retrofit projects so I
> was wondering what everyone likes these days for motherboards. May basic
> requirements are:
> 
> MiniITX Form Factor
> (1) PCI slot for a Mesa 5i25 (or alternatively a PCI-E slot for a 6i25)
> Predictable enough latency to avoid the dreaded "real time error" popups
> Cheap would also be nice :)
> 
I used this:
http://www.cncintheworkshop.com/Building_a_computer.html

> Also, any recommendations on touch screen setups that work with minimal
> hacking would be welcome as well!
> 
> Thanks,
> Matt
> 
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Re: [Emc-users] Unified Build/ "new RTOS" work: general availability for testing

2013-09-11 Thread Thomas Kaiser
On 09/11/2013 08:47 AM, Thomas Kaiser wrote:
> On 09/11/2013 08:28 AM, Sebastian Kuzminsky wrote:
>> You need libreadline-dev. dpkg-checkbuilddeps will tell you.
>
> Thanks, now Tcl and Tk is missing.
>
> Looks like I have to figure out all the dependencies...
>
> I will post what else I had to install for compiling LinuxCNC.


On Ubuntu 13.04 one need to install tcl8.5-dev, tk8.5-dev instead of 8.4.

libxmu-headers and libxmu-dev is also needed. So, I have to use that 
command to get everything for Ubuntu 13.04:

sudo apt-get install libpth-dev dvipng tcl8.5-dev tk8.5-dev bwidget blt
asciidoc source-highlight dblatex groff python-tk libglu1-mesa-dev
mesa-common-dev libosmesa6-dev libgtk2.0-dev libgnomeprintui2.2-dev
libgnomeprintui2.2-dev texlive-lang-cyrillic libxmu-dev libxmu-headers

Next: compile and install a (or more) realtime kernel and see how the 
build of LinuxCNC goes...

Thomas







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Re: [Emc-users] Seeking Motherboard Recommendations

2013-09-11 Thread Kent A. Reed
On 9/11/2013 10:39 AM, Matt Shaver wrote:
> I might (hopefully) be doing a few new linuxcnc retrofit projects so I
> was wondering what everyone likes these days for motherboards. May basic
> requirements are:
>
> MiniITX Form Factor
> (1) PCI slot for a Mesa 5i25 (or alternatively a PCI-E slot for a 6i25)
> Predictable enough latency to avoid the dreaded "real time error" popups
> Cheap would also be nice :)
>
> Also, any recommendations on touch screen setups that work with minimal
> hacking would be welcome as well!
>
> Thanks,
> Matt
>

No recommendation, Matt, but a warning since I know you are nearby. The 
local MicroCenter stores have been selling the Biostar A68I-E350 Deluxe 
at a *very* attractive price. I bought one for another purpose and ran 
latency-test on it for grins. See the results I posted in the 
latency-test table on the Wiki. Based on the numbers I got, I'd avoid 
this board.

Regards,
Kent


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[Emc-users] I'm going to build something small, need a cheap stepper driver.

2013-09-11 Thread Gregg Eshelman
Bought someone's failed hot wire foam cutter project (it used full extension, 
ball bearing drawer slides) for $20 to get the four NEMA 23, 85 oz-in dual 
shaft motors.

Got the motors off, going to put the drawer slides on the yard sale tomorrow.

Any reccomends on a really inexpensive way to drive these 6 wire motors? I have 
a bunch of 40/40 T-slot extrusion ($2.49 foot at a surplus company) with 
connectors that fit into the ends *and* inside corner brackets so it'll make a 
very rigid frame.

I am thinking about a 3D printer, but I'll want the thing built very rigid. I 
recently saw a Solidoodle 3 in action. Not much impressed! The build platform 
is only supported on one side and I could see it wiggle, which appeared to 
harmonically combine with the motor motion to produce a visible waviness to the 
edges of every layer.

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Re: [Emc-users] Seeking Motherboard Recommendations

2013-09-11 Thread John Thornton
Intellitouch versions of ELO touch screens work with Ubuntu 10.04

JT

On 9/11/2013 9:39 AM, Matt Shaver wrote:
> I might (hopefully) be doing a few new linuxcnc retrofit projects so I
> was wondering what everyone likes these days for motherboards. May basic
> requirements are:
>
> MiniITX Form Factor
> (1) PCI slot for a Mesa 5i25 (or alternatively a PCI-E slot for a 6i25)
> Predictable enough latency to avoid the dreaded "real time error" popups
> Cheap would also be nice :)
>
> Also, any recommendations on touch screen setups that work with minimal
> hacking would be welcome as well!
>
> Thanks,
> Matt
>
> --
> How ServiceNow helps IT people transform IT departments:
> 1. Consolidate legacy IT systems to a single system of record for IT
> 2. Standardize and globalize service processes across IT
> 3. Implement zero-touch automation to replace manual, redundant tasks
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Re: [Emc-users] I'm going to build something small, need a cheap stepper driver.

2013-09-11 Thread Greg Bernard
I don't think you could do any better than Pololu's A4988 drivers at $9.95 
each. Or for another 4 bucks you can get  1/2 amp more with their  DRV8825 
model.


 
+++
"Anyone who believes exponential growth can go on forever in a finite world is 
either a madman or an economist."
        -Kenneth Boulding, economist
“How unfortunate that the Earth’s first intelligent social animal is a tribal 
carnivore” 
    -E.O. Wilson, sociobiologist




>
> From: Gregg Eshelman 
>To: emc-users@lists.sourceforge.net 
>Sent: Wednesday, September 11, 2013 7:14 PM
>Subject: [Emc-users] I'm going to build something small,   need a cheap 
>stepper driver.
> 
>
>Bought someone's failed hot wire foam cutter project (it used full extension, 
>ball bearing drawer slides) for $20 to get the four NEMA 23, 85 oz-in dual 
>shaft motors.
>
>Got the motors off, going to put the drawer slides on the yard sale tomorrow.
>
>Any reccomends on a really inexpensive way to drive these 6 wire motors? I 
>have a bunch of 40/40 T-slot extrusion ($2.49 foot at a surplus company) with 
>connectors that fit into the ends *and* inside corner brackets so it'll make a 
>very rigid frame.
>
>I am thinking about a 3D printer, but I'll want the thing built very rigid. I 
>recently saw a Solidoodle 3 in action. Not much impressed! The build platform 
>is only supported on one side and I could see it wiggle, which appeared to 
>harmonically combine with the motor motion to produce a visible waviness to 
>the edges of every layer.
>
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>
>
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1. Consolidate legacy IT systems to a single system of record for IT
2. Standardize and globalize service processes across IT
3. Implement zero-touch automation to replace manual, redundant tasks
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