[Emc-developers] Latency: Linux from RAM

2012-09-15 Thread Joachim Franek
Hello, has someone tried this: http://en.wikipedia.org/wiki/List_of_Linux_distributions_that_run_from_RAM Joachim -- How fast is your code? 3 out of 4 devs don\\\'t know how their code performs in production. Find out

[Emc-developers] RT-8p8c - An ethernet based interface for LinuxCNC

2012-09-15 Thread GP Orcullo
Hello All, I have been working on PIC32 based ethernet interface board for LinuxCNC. This board uses a simple UDP protocol for communication. The HAL driver is based on RTnet. Currently, only the software step generator for 4 axis is implemented. Code for spindle pwm and 16 bidirectional I/O

Re: [Emc-developers] Raspberry Pi aupercomputer

2012-09-15 Thread Viesturs Lācis
Hello! A little-OT question regarding Raspberry: Is this useful in LinuxCNC context? http://hackaday.com/2012/09/14/a-truly-professional-raspi-analog-input/ -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto --

Re: [Emc-developers] Raspberry Pi aupercomputer

2012-09-15 Thread Joachim Franek
On Saturday 15 September 2012 16:00:36 Viesturs Lācis wrote: > Hello! > > A little-OT question regarding Raspberry: > Is this useful in LinuxCNC context? > http://hackaday.com/2012/09/14/a-truly-professional-raspi-analog-input/ > Looking to the schematics, the MCP3428 datasheet and the price it

Re: [Emc-developers] question re RT PREEMPT linux on ASUS Atom board

2012-09-15 Thread Kent A. Reed
Gentle persons: As a brief summary... I reset the BIOS on my ASUS AT5NM10-I to nearly default settings, including enabled Hyperthreading. I did leave audio processing disabled. I built and ran the OSADL cycletest (hint: first install the libnuma1 and libnuma-dev packages) with essentially the

Re: [Emc-developers] question re RT PREEMPT linux on ASUS Atom board

2012-09-15 Thread Jan de Kruyf
Hallo Kent, Please let it run overnight, my poor old Dell wanted to go to bed sometime after midnight and gave some horrible results next morning (been sleeping at the wheel, obviously). Although it looked quite happy for the first hour or so. The other thing to watch out for is frequency throttli

[Emc-developers] secure boot article

2012-09-15 Thread Jan de Kruyf
For those who have not seen this yet: https://lwn.net/Articles/514985/#Comments it seems relevant. j. -- How fast is your code? 3 out of 4 devs don\\\'t know how their code performs in production. Find out how slow your

Re: [Emc-developers] question re RT PREEMPT linux on ASUS Atom board

2012-09-15 Thread Kent A. Reed
On 9/15/2012 12:22 PM, Jan de Kruyf wrote: > Hallo Kent, > Please let it run overnight, my poor old Dell wanted to go to bed sometime > after midnight and gave some horrible results next morning (been sleeping > at the wheel, obviously). Although it looked quite happy for the first hour > or so. To

Re: [Emc-developers] secure boot article

2012-09-15 Thread Jon Elson
Jan de Kruyf wrote: > For those who have not seen this yet: > > https://lwn.net/Articles/514985/#Comments > > it seems relevant. > Can anyone interpret this for us? Jon -- How fast is your code? 3 out of 4 devs don\\\'

Re: [Emc-developers] secure boot article

2012-09-15 Thread Jan de Kruyf
It looks to me, no more direct access to parport etc. Only throug a "signed" kernelmodule. That is why I posted it. Dont know when it will become common practice, but obviously the evil empire MUST have this to keep the dogs off the door. j. On Sat, Sep 15, 2012 at 8:35 PM, Jon Elson wrote: >

Re: [Emc-developers] secure boot article

2012-09-15 Thread Kent A. Reed
On 9/15/2012 2:47 PM, Jan de Kruyf wrote: > It looks to me, no more direct access to parport etc. Only throug a > "signed" kernelmodule. That is why I posted it. > > Dont know when it will become common practice, but obviously the evil > empire MUST have this to keep the dogs off the door. > > j. >

Re: [Emc-developers] question re RT PREEMPT linux on ASUS Atom board

2012-09-15 Thread Charles Steinkuehler
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 9/15/2012 1:10 PM, Kent A. Reed wrote: > Absolutely, and this is why I'm spending some time with this board. > It already works fine for me in a traditional RTAI-based LinuxCNC > system. I decided to play with it because of the general, > well-foun

Re: [Emc-developers] yocto, was Raspberry Pi aupercomputer

2012-09-15 Thread Kent A. Reed
On 9/13/2012 12:03 PM, Kenneth Lerman wrote: > I've just started looking at the yocto project. It might be of interest > for those looking to build systems for a variety of target architectures. > > Ken > > Ken: Have you taken yocto for a spin yet? I remember how painful it was to get my cross-c

Re: [Emc-developers] yocto, was Raspberry Pi aupercomputer

2012-09-15 Thread Kenneth Lerman
Just a quick one. I built a system on my little atom box for 64 bit linux and ran it under qemu. Next, I think I'll get an Rpi and try building for that. Ken On 9/15/2012 4:52 PM, Kent A. Reed wrote: > On 9/13/2012 12:03 PM, Kenneth Lerman wrote: >> I've just started looking at the yocto proje