Re: [Emc-users] about to give up on the pi's

On Friday 05 May 2017 17:43:16 Gene Heskett wrote: > On Friday 05 May 2017 09:25:01 Charles Steinkuehler wrote: > > On 5/5/2017 7:56 AM, andy pugh wrote: > > > On 5 May 2017 at 13:41, Charles Steinkuehler > > wrote: > > >> So does the armhf build run in Raspian or are

Re: [Emc-users] about to give up on the pi's

On 5/5/2017 4:43 PM, Gene Heskett wrote: > On Friday 05 May 2017 09:25:01 Charles Steinkuehler wrote: >> >> I've ordered one of these x86 SBCs to play with and see if I can get >> it talking to Mesa hardware via SPI: >> >> http://up-shop.org/up-boards/2-up-board-2gb-16-gb-emmc-memory.html > >

Re: [Emc-users] about to give up on the pi's

On Friday 05 May 2017 09:25:01 Charles Steinkuehler wrote: > On 5/5/2017 7:56 AM, andy pugh wrote: > > On 5 May 2017 at 13:41, Charles Steinkuehler wrote: > >> So does the armhf build run in Raspian or are you using qemu or > >> something? AFAIK, standard Debian armhf

Re: [Emc-users] about to give up on the pi's

On Friday 05 May 2017 09:25:01 Charles Steinkuehler wrote: > On 5/5/2017 7:56 AM, andy pugh wrote: > > On 5 May 2017 at 13:41, Charles Steinkuehler wrote: > >> So does the armhf build run in Raspian or are you using qemu or > >> something? AFAIK, standard Debian armhf

Re: [Emc-users] about to give up on the pi's

On Friday 05 May 2017 08:41:59 Charles Steinkuehler wrote: > On 5/4/2017 8:16 PM, Gene Heskett wrote: > > On Thursday 04 May 2017 16:25:00 Charles Steinkuehler wrote: > >> Out of curiosity, are you building from source or is there a > >> package repo for LinuxCNC on the RPi? > > > > Charles; > >

Re: [Emc-users] about to give up on the pi's

From my understanding, a straight Debian armhf distro install will run on the rPi 2 and rPi 3. It should also provide performance improvements over Raspbian. When Raspbian is built there are many compiler flags that are disabled for things like vector instructions, etc. This is for backward

Re: [Emc-users] about to give up on the pi's

No. The one to use is amazon.com/dp/B00K53CQK4 It is $70 and takes arduino spec'd shields. These kind of products are good if building a portable battery powered device. But really, a $50 ITX size Atom board is even more

Re: [Emc-users] about to give up on the pi's

hi gene On 05/05/17 08:16, Gene Heskett wrote: > Charles; > Its actually running the 2.8pre x86 code, for master-sim, straight out of > the buildbot at . ? raspberry pi runs x86 code? also the url might be better as

Re: [Emc-users] about to give up on the pi's

On Thursday 04 May 2017 16:25:00 Charles Steinkuehler wrote: > On 5/4/2017 11:44 AM, Gene Heskett wrote: > > On Thursday 04 May 2017 10:34:15 Przemek Klosowski wrote: > >> Just to further confuse the matters, here's another ARM board: it's > >> a BeagleBone version specially designed for

Re: [Emc-users] about to give up on the pi's

Has anyone tried an (Intel) Edison yet? It's an x86 machine, and comes in at $100 if you add the arduino-pinout carrier board to give you all the I/O pins: https://www.sparkfun.com/products/13097 On Thu, May 4, 2017 at 2:38 PM, Gene Heskett wrote: > On Thursday 04 May

Re: [Emc-users] about to give up on the pi's

On Thursday 04 May 2017 13:14:07 Jon Elson wrote: > On 05/03/2017 11:36 PM, Gene Heskett wrote: > > On Wednesday 03 May 2017 23:44:02 Jon Elson wrote: > >> On 05/03/2017 09:28 PM, Gene Heskett wrote: > >>> The killer in the beaglebone soup is the cost of the "capes". > >>> You've over $200 plus

Re: [Emc-users] about to give up on the pi's

On 05/04/2017 02:25 PM, Charles Steinkuehler wrote: > On 5/4/2017 11:44 AM, Gene Heskett wrote: >> On Thursday 04 May 2017 10:34:15 Przemek Klosowski wrote: >> >>> Just to further confuse the matters, here's another ARM board: it's a >>> BeagleBone version specially designed for robotics/machine

Re: [Emc-users] about to give up on the pi's

On 5/4/2017 11:44 AM, Gene Heskett wrote: > On Thursday 04 May 2017 10:34:15 Przemek Klosowski wrote: > >> Just to further confuse the matters, here's another ARM board: it's a >> BeagleBone version specially designed for robotics/machine control: >> >>

Re: [Emc-users] about to give up on the pi's

A good device indeed it seems to be. On Thu, 4 May 2017 10:34:15 -0400 Przemek Klosowski wrote: > Just to further confuse the matters, here's another ARM board: it's a > BeagleBone version specially designed for robotics/machine control: > >

Re: [Emc-users] about to give up on the pi's

2017-05-04 20:14 GMT+03:00 Jon Elson: > On 05/03/2017 11:36 PM, Gene Heskett wrote: > >> The BeagleBone is $55, > > And how many cores & how fast is its arm? > I think it is only one core, 1 GHz. Works fine for > Machinekit/LinuxCNC control of Cartesian machine, but ssh -X > connection from a

Re: [Emc-users] about to give up on the pi's

On Thursday 04 May 2017 12:51:02 dragon wrote: > In case you are interested I have tried both the AsRock Q1900-ITX and > Q1900-M. Both have a par port header on the board and worked fine with > a Pico Universal PWM card and had a very acceptable jitter even > without trying to tweak things. > > I

Re: [Emc-users] about to give up on the pi's

On 05/03/2017 11:36 PM, Gene Heskett wrote: > On Wednesday 03 May 2017 23:44:02 Jon Elson wrote: > >> On 05/03/2017 09:28 PM, Gene Heskett wrote: >>> The killer in the beaglebone soup is the cost of the "capes". You've >>> over $200 plus psu's etc before it can turn 2 motors at the same >>> time.

Re: [Emc-users] about to give up on the pi's

On Thursday 04 May 2017 12:41:32 andy pugh wrote: > On 4 May 2017 at 17:33, Gene Heskett wrote: > > But the only box I have that fits that description is a huge swarf > > magnet Dell with an old slow p4 in it. I've no clue how fast its > > parport might be. The only reason

Re: [Emc-users] about to give up on the pi's

In case you are interested I have tried both the AsRock Q1900-ITX and Q1900-M. Both have a par port header on the board and worked fine with a Pico Universal PWM card and had a very acceptable jitter even without trying to tweak things. I don't see why they wouldn't work with the 7i90 as well.

Re: [Emc-users] about to give up on the pi's

On Thursday 04 May 2017 10:34:15 Przemek Klosowski wrote: > Just to further confuse the matters, here's another ARM board: it's a > BeagleBone version specially designed for robotics/machine control: > > http://makezine.com/product-review/beaglebone-blue/?utm_source=faceboo

Re: [Emc-users] about to give up on the pi's

On 4 May 2017 at 17:33, Gene Heskett wrote: > But the only box I have that fits that description is a huge swarf magnet > Dell with an old slow p4 in it. I've no clue how fast its parport might > be. The only reason I haven't binned it is its my programmer for the > 7i90's.

Re: [Emc-users] about to give up on the pi's

On 4 May 2017 at 17:10, Chris Albertson wrote: > For example your computer > makes step and direction pulses but a bipolar stepping motor wants to see > voltages on it's four lead wires. Why not have the computer computer the > voltages? To answer just one point,

Re: [Emc-users] about to give up on the pi's

On Thursday 04 May 2017 07:40:20 andy pugh wrote: > On 4 May 2017 at 03:29, Chris Albertson wrote: > > You'd get the best bandwidth by using RS422 but the cost is higher > > because you'd need the intel PC and the serial and graphic cards. > > You would also need to

Re: [Emc-users] about to give up on the pi's

Why is this so hard and expensive? I view this question as a huge business opportunity. The cost and time involved in setting up a CNC system is MUCH more than it should be. Fix that problem and you'll be rich,The cost could be reduced by maybe a factor of 8x. Customers would be happy to

Re: [Emc-users] about to give up on the pi's

Just to further confuse the matters, here's another ARM board: it's a BeagleBone version specially designed for robotics/machine control: http://makezine.com/product-review/beaglebone-blue/?utm_source=facebook_medium=social_campaign=digikey_term=boards%20guide_content=beaglebone%20blue On Wed,

Re: [Emc-users] about to give up on the pi's

On 4 May 2017 at 03:29, Chris Albertson wrote: > You'd get the best bandwidth by using RS422 but the cost is higher because > you'd need the intel PC and the serial and graphic cards. You would also need to Hostmot2 driver layer for serial, and there isn't one. The

Re: [Emc-users] about to give up on the pi's

On Wednesday 03 May 2017 23:44:02 Jon Elson wrote: > On 05/03/2017 09:28 PM, Gene Heskett wrote: > > The killer in the beaglebone soup is the cost of the "capes". You've > > over $200 plus psu's etc before it can turn 2 motors at the same > > time. > > Umm, the CRAMPS board is $79.95, and I sell

Re: [Emc-users] about to give up on the pi's

https://www.digikey.com/products/en/embedded-computers/single-board-computers-sbcs/933 On Wednesday, May 3, 2017, 3:15:29 PM MDT, andy pugh wrote:On 3 May 2017 at 20:22, Gene Heskett wrote: > What x86 board, suitably small but not that outpriced yudoo

Re: [Emc-users] about to give up on the pi's

On 05/03/2017 09:28 PM, Gene Heskett wrote: > > The killer in the beaglebone soup is the cost of the "capes". You've over > $200 plus psu's etc before it can turn 2 motors at the same time. Umm, the CRAMPS board is $79.95, and I sell the 8825 drivers for $5 each, but I get them from China for

Re: [Emc-users] about to give up on the pi's

On 05/03/2017 09:02 PM, Gene Heskett wrote: > > Sure, but whats the bandwidth of a parport? 50 kilobaud equ maybe. Actually, 500 K bytes/second is easy on a standard parport, today. Jon -- Check out the vibrant tech

Re: [Emc-users] about to give up on the pi's

On Wed, May 3, 2017 at 10:28 PM, Gene Heskett wrote: > The killer in the beaglebone soup is the cost of the "capes". You've over > $200 plus psu's etc before it can turn 2 motors at the same time. > The beaglebone blue has dc motor outputs and encoder inputs for $80.

Re: [Emc-users] about to give up on the pi's

On Wednesday 03 May 2017 22:29:43 Chris Albertson wrote: > According to the 7i90 user manual the RS422 interface is at least 2X > faster than the SPI interface. Mesa claims these speeds > > Parallel Port ~1Mbit/sec > SPI 1~5 Mbit/Sec > RS422 10 Mbit/sec > > If you use a standard Intel board you

Re: [Emc-users] about to give up on the pi's

According to the 7i90 user manual the RS422 interface is at least 2X faster than the SPI interface. Mesa claims these speeds Parallel Port ~1Mbit/sec SPI 1~5 Mbit/Sec RS422 10 Mbit/sec If you use a standard Intel board you can buy a PCI card that does RS422 and send data at 10Mbits over a cat5

Re: [Emc-users] about to give up on the pi's

On Wednesday 03 May 2017 21:41:34 Jon Elson wrote: > On 05/03/2017 02:22 PM, Gene Heskett wrote: > > Greetings; > > > > What x86 board, suitably small but not that outpriced yudoo thingy, > > will run linuxcnc well AND can do the spi thing? > > > > Cheers, Gene Heskett > > Well, the various

Re: [Emc-users] about to give up on the pi's

On Wednesday 03 May 2017 17:11:02 andy pugh wrote: > On 3 May 2017 at 20:22, Gene Heskett wrote: > > What x86 board, suitably small but not that outpriced yudoo thingy, > > will run linuxcnc well AND can do the spi thing? > > I doubt that you will find an x86 PC with SPI.

Re: [Emc-users] about to give up on the pi's

On 05/03/2017 02:22 PM, Gene Heskett wrote: > Greetings; > > What x86 board, suitably small but not that outpriced yudoo thingy, will > run linuxcnc well AND can do the spi thing? > > Cheers, Gene Heskett Well, the various versions of the Beagle Bone run the Machinekit fork of LinuxCNC fairly

Re: [Emc-users] about to give up on the pi's

If you go with an Intel board you'd like be using Ethernet, not SPI to connect a Mesa card. Ethernet is really better anyway as it uses standardized connectors, off the shelf cable and can run distances over 100 meters. There is of course not end to the number of Intel boards. But you might

Re: [Emc-users] about to give up on the pi's

On 3 May 2017 at 20:22, Gene Heskett wrote: > What x86 board, suitably small but not that outpriced yudoo thingy, will > run linuxcnc well AND can do the spi thing? I doubt that you will find an x86 PC with SPI. (though I could be wrong). But the 7i90 can also do EPP. --

[Emc-users] about to give up on the pi's

Greetings; What x86 board, suitably small but not that outpriced yudoo thingy, will run linuxcnc well AND can do the spi thing? Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author)