Re: [Emc-users] Atomic pi

[Alan Condit]

I finally got Stretch 9 running on the atomic pi. I agree with Wallace that the 
 forum is pretty poor. The only help I got was from another Linuxcnc user. So, 
thank you Robert Murphy (I guess not of Murphy’s law fame).

I have Synaptic running on it on Stretch. I couldn’t get Synaptic to run on the 
Lubuntu that they ship on it. 

The 16gb emmc is too small to load the necessary files to compile and link 
linuxcnc. Maybe I loaded some unnecessary stuff???

It was a real battle to get Grub set up correctly to boot with multiple disks 
attached, but I finally used rEFInd and was able to get Grub to boot correctly 
with a 64gb uSD and a 240gb SSD. I then compiled linux-4.19.37-rt20 and 
linuxcnc, but I ended up installing linuxcnc master. 

I also dislike the fact that when you push the reset button it also resets the 
date and time on the rtc. It also resets it to search for PXE net boot. 

Whether I use the api or the RockPro64 is sort of a toss up at the moment. I am 
planning to run a 7i76e and the question is whether I can get the RockPro64 to 
support Real-Time ethernet.

Alan

> From: "Marshland Engineering" 
> Subject: Re: [Emc-users] Atomic pi
> Date: June 7, 2019 at 2:18:05 PM PDT
> To: emc-users@lists.sourceforge.net
> Reply-To: marshl...@marshland.co.nz
> 
> 
> I bought one and was really disappointed. Forum is poor, Synaptic Package
> manager does not work. Pop-Os was suggested but that too hiccuped. May just
> use it as an internal server if I can get anything to run on it. No one seems
> to have Windows running too well on it.  
> 
> Raspberry Pi is a much better bet. 
> 
> Cheers Wallace.

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Re: [Emc-users] Atomic pi

[Marshland Engineering]

I bought one and was really disappointed. Forum is poor, Synaptic Package
manager does not work. Pop-Os was suggested but that too hiccuped. May just
use it as an internal server if I can get anything to run on it. No one seems
to have Windows running too well on it.  

Raspberry Pi is a much better bet. 

Cheers Wallace.



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Re: [Emc-users] Atomic pi

[Chris Albertson]

The "atomic pi" looked good at first and then we foubd they were just
surplllus junk that will never be suported in the long term.

Here is a NEW product that has has a huge company suporting it.   In fact,
they were smart to get there support and documentation in order some months
before the product was released.  STM has a hybrid ARM hybrid A and M chip.

The A side of the chip can run Debian Linux.  They have their own version
and I think real-time support for it and the M side of the chip is the
normal STM32F microcontroller.

This is a little like the Ti chip in the BBB that has PRUs but the M4 is
quite a lot better suited for machine control because of the attached
peripheral hardware.  It can generate pulses and decode quadrature encoders
all inhardware with no CPU cycles. The chips themselves are selling for
about $15 so a user level retail product might be cheap.   STM has a
history of selling subsidized development board at lowe cost.These will
be sold in large numbers

The first boards are on sale now.  The lowest spec one has pretty good
performance including gigabit Ethernet and HDMI video for $70.  For another
$30 they add a phone-sized touch screem WiFi and Bluetooth.

Read the specs here, very impressive for a low-cost chip


https://www.cnx-software.com/2019/02/21/stmicro-stm32mp1-cortex-a7-m4-mpu/

I have always thought the best machine controller would be some combo of
Linux with a uP and then the user interface would run on a tablet with a
touch screen with an option to use multiple screensThis would enable
that kind of design. The peripheral hardware, (that would be quadrature
decoders, hardware PWM and analog I/O)  would make this as fast as an FPGA
based controller but it runs Linux on the same chip so the communications
is easy

On top of all this STM is very supportive of developers and maintains
compilers and IDE and the Linux OS images.



On Tue, May 14, 2019 at 4:57 PM Alan Condit  wrote:

> Chris and Gene,
>
> I just went to the dlidirect.com <http://dlidirect.com/> website and
> clicked on the “Full Developer Kit” pull down, it showed out of stock when
> I looked but while I was on the page looking I got a invitation to chat
> box. I asked whether you could order the developers kit through the website
> or if you had to buy it through Amazon. The chat person said give me a call
> and posted their phone number. They said they had a limited number of
> developer kits in stock but the price was now $119 plus $20 shipping. So, I
> placed an order and was told that it will ship tomorrow.
>
> Assuming that I didn’t get scammed, I should have it in a few days.
>
> Alan
>
> > From: Chris Albertson 
> > Subject: Re: [Emc-users] Atomic pi
> > Date: May 13, 2019 at 9:58:57 PM PDT
> > To: "Enhanced Machine Controller (EMC)"  >
> >
> >
> > I looked at their web site.  About $108 for the full developer kit but
> you
> > get two units, the pwr supply, and a camera.   It's a fantastic deal but
> > they are sold out.  They say "restocking now" and to buy them on Amazon.
> >
> > $108 for two is a great deal.
> >
> > On Mon, May 13, 2019 at 9:21 PM Gene Heskett 
> wrote:
> >
> >> On Monday 13 May 2019 11:43:56 pm jeremy youngs wrote:
> >>
> >>> https://dlidirect.com/products/atomic-pi?fbclid=IwAR0k6hdGM6u1RJSVNLPn
> >>> kMxKnkg6CfnWs1szLEF9zhEj2YDZB0Z_PaWxVpQ
> >>>
> >>> Any trying this ?
> >>>
> >> Not yet, sure looks interesting though. What does the whole kit, bob and
> >> pdu shown cost?
> >>
> >> Maybe it could be our next D525MW but with an spi interface to a 7i90HD?
> >>
> >> 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)
> >> Genes Web page <http://geneslinuxbox.net:6309/gene>
>
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-- 

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] Atomic pi

[Gene Heskett]

On Thursday 06 June 2019 10:30:55 am andy pugh wrote:

> On Tue, 21 May 2019 at 03:30, Robert Murphy  
wrote:
> > The Atomic Pi may have been the basis for a robotics project (these
> > tidbits I got from the Atomic Pi reddit page).
>
> Seems to be confirmed here:
>
> https://hackaday.com/2019/06/06/the-atomic-pi-is-it-worth-it/
thats quite disappointing.

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)
Genes Web page 



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Re: [Emc-users] Atomic pi

[andy pugh]

On Tue, 21 May 2019 at 03:30, Robert Murphy  wrote:

>
> The Atomic Pi may have been the basis for a robotics project (these
> tidbits I got from the Atomic Pi reddit page).


Seems to be confirmed here:

https://hackaday.com/2019/06/06/the-atomic-pi-is-it-worth-it/


-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916

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Re: [Emc-users] Atomic pi

[Robert Murphy]

Quick update..

After seeing JT's thread on the forum I installed Lubuntu Bionic-Beaver.
Followed the instructions for building the kernel (used make deb-pkg),
more or less used the Mint 19 recipe to build Linuxcnc (did this on my
T530 Thinkpad). Installed said kernel & packages on the Atomic Pi.

Running latency-histogram --nobase saw some very promising figures. I
had to add isolcpus=0,1,3 (no that's not a typo).

I have another kernel to try with 1000Hz timer, instead of 250Hz and
we'll see if that has any better results.

I have been trawling the interwebs for some tweaks for RT kernel but
many are old.



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Re: [Emc-users] Atomic pi

[Robert Murphy]

Just a quick update.

Installed debian stretch (r13?), all went smooth, installed a backported
kernel (4.19) and ATM am testing various boot options to get latency to
a better value (may even recompile kernel after more research).

So far it looks like it may work with a MESA ethernet card.

Unfortunately it appears the board may have been bought via auction as
excess stock. Another thing the DL website appears to be down when
trying to access OS images & docs. (From Oz anyways)

The Atomic Pi may have been the basis for a robotics project (these
tidbits I got from the Atomic Pi reddit page).


On 20/5/19 10:15 am, Robert Murphy wrote:

My Atomic should be here today.

Ethernet is on the PCIe bus (if that hasn't been mentioned)

The BBB is a great platform for a compact solution but AFAIK machinekit
is the only option for PRU support. I've been running my setup for about
a year now.



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[Emc-users] Atomic pi

[Robert Murphy]

My Atomic should be here today.

Ethernet is on the PCIe bus (if that hasn't been mentioned)

The BBB is a great platform for a compact solution but AFAIK machinekit
is the only option for PRU support. I've been running my setup for about
a year now.



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Re: [Emc-users] Atomic pi

[Alan Condit]

Well I received a fedex tracking number that says they shipped my AtomicPi 
order on the 15th. In 2 days it made it from San Jose, to Troutdale, OR, about 
35-40 miles from home. They say it should arrive home on Tuesday the 21st. So 2 
days to make it most of the way and 4 more days to cover the last 40 miles. :-)

The website now shows $45 for the AtomicPi and $119 for the “Full Developers 
Kit”. We’ll soon see if it is worth the shekels.

Alan

> On May 14, 2019, at 4:55 PM, Alan Condit  wrote:
> 
> Chris and Gene,
> 
> I just went to the dlidirect.com <http://dlidirect.com/> website and clicked 
> on the “Full Developer Kit” pull down, it showed out of stock when I looked 
> but while I was on the page looking I got a invitation to chat box. I asked 
> whether you could order the developers kit through the website or if you had 
> to buy it through Amazon. The chat person said give me a call and posted 
> their phone number. They said they had a limited number of developer kits in 
> stock but the price was now $119 plus $20 shipping. So, I placed an order and 
> was told that it will ship tomorrow.
> 
> Assuming that I didn’t get scammed, I should have it in a few days.
> 
> Alan
> 
>> From: Chris Albertson > <mailto:albertson.ch...@gmail.com>>
>> Subject: Re: [Emc-users] Atomic pi
>> Date: May 13, 2019 at 9:58:57 PM PDT
>> To: "Enhanced Machine Controller (EMC)" > <mailto:emc-users@lists.sourceforge.net>>
>> 
>> 
>> I looked at their web site.  About $108 for the full developer kit but you
>> get two units, the pwr supply, and a camera.   It's a fantastic deal but
>> they are sold out.  They say "restocking now" and to buy them on Amazon.
>> 
>> $108 for two is a great deal.
>> 
>> On Mon, May 13, 2019 at 9:21 PM Gene Heskett > <mailto:ghesk...@shentel.net>> wrote:
>> 
>>> On Monday 13 May 2019 11:43:56 pm jeremy youngs wrote:
>>> 
>>>> https://dlidirect.com/products/atomic-pi?fbclid=IwAR0k6hdGM6u1RJSVNLPn 
>>>> <https://dlidirect.com/products/atomic-pi?fbclid=IwAR0k6hdGM6u1RJSVNLPn>
>>>> kMxKnkg6CfnWs1szLEF9zhEj2YDZB0Z_PaWxVpQ
>>>> 
>>>> Any trying this ?
>>>> 
>>> Not yet, sure looks interesting though. What does the whole kit, bob and
>>> pdu shown cost?
>>> 
>>> Maybe it could be our next D525MW but with an spi interface to a 7i90HD?
>>> 
>>> 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)
>>> Genes Web page <http://geneslinuxbox.net:6309/gene 
>>> <http://geneslinuxbox.net:6309/gene>>


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Re: [Emc-users] Atomic pi

[Gene Heskett]

On Tuesday 14 May 2019 07:55:51 pm Alan Condit wrote:

> Chris and Gene,
>
> I just went to the dlidirect.com <http://dlidirect.com/> website and
> clicked on the “Full Developer Kit” pull down, it showed out of stock
> when I looked but while I was on the page looking I got a invitation
> to chat box. I asked whether you could order the developers kit
> through the website or if you had to buy it through Amazon. The chat
> person said give me a call and posted their phone number. They said
> they had a limited number of developer kits in stock but the price was
> now $119 plus $20 shipping. So, I placed an order and was told that it
> will ship tomorrow.
>
> Assuming that I didn’t get scammed, I should have it in a few days.
>
> Alan
>
Sounds good Alan. Frankly,  nothing beats putting ones own fingerprints 
on something new that sounds usable.

So let us know how it goes.

> > From: Chris Albertson 
> > Subject: Re: [Emc-users] Atomic pi
> > Date: May 13, 2019 at 9:58:57 PM PDT
> > To: "Enhanced Machine Controller (EMC)"
> > 
> >
> >
> > I looked at their web site.  About $108 for the full developer kit
> > but you get two units, the pwr supply, and a camera.   It's a
> > fantastic deal but they are sold out.  They say "restocking now" and
> > to buy them on Amazon.
> >
> > $108 for two is a great deal.
> >
> > On Mon, May 13, 2019 at 9:21 PM Gene Heskett  
wrote:
> >> On Monday 13 May 2019 11:43:56 pm jeremy youngs wrote:
> >>> https://dlidirect.com/products/atomic-pi?fbclid=IwAR0k6hdGM6u1RJSV
> >>>NLPn kMxKnkg6CfnWs1szLEF9zhEj2YDZB0Z_PaWxVpQ
> >>>
> >>> Any trying this ?
> >>
> >> Not yet, sure looks interesting though. What does the whole kit,
> >> bob and pdu shown cost?
> >>
> >> Maybe it could be our next D525MW but with an spi interface to a
> >> 7i90HD?
> >>
> >> 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)
> >> Genes Web page <http://geneslinuxbox.net:6309/gene>
>
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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)
Genes Web page <http://geneslinuxbox.net:6309/gene>



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Re: [Emc-users] Atomic pi

[Alan Condit]

Chris and Gene,

I just went to the dlidirect.com <http://dlidirect.com/> website and clicked on 
the “Full Developer Kit” pull down, it showed out of stock when I looked but 
while I was on the page looking I got a invitation to chat box. I asked whether 
you could order the developers kit through the website or if you had to buy it 
through Amazon. The chat person said give me a call and posted their phone 
number. They said they had a limited number of developer kits in stock but the 
price was now $119 plus $20 shipping. So, I placed an order and was told that 
it will ship tomorrow.

Assuming that I didn’t get scammed, I should have it in a few days.

Alan

> From: Chris Albertson 
> Subject: Re: [Emc-users] Atomic pi
> Date: May 13, 2019 at 9:58:57 PM PDT
> To: "Enhanced Machine Controller (EMC)" 
> 
> 
> I looked at their web site.  About $108 for the full developer kit but you
> get two units, the pwr supply, and a camera.   It's a fantastic deal but
> they are sold out.  They say "restocking now" and to buy them on Amazon.
> 
> $108 for two is a great deal.
> 
> On Mon, May 13, 2019 at 9:21 PM Gene Heskett  wrote:
> 
>> On Monday 13 May 2019 11:43:56 pm jeremy youngs wrote:
>> 
>>> https://dlidirect.com/products/atomic-pi?fbclid=IwAR0k6hdGM6u1RJSVNLPn
>>> kMxKnkg6CfnWs1szLEF9zhEj2YDZB0Z_PaWxVpQ
>>> 
>>> Any trying this ?
>>> 
>> Not yet, sure looks interesting though. What does the whole kit, bob and
>> pdu shown cost?
>> 
>> Maybe it could be our next D525MW but with an spi interface to a 7i90HD?
>> 
>> 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)
>> Genes Web page <http://geneslinuxbox.net:6309/gene>

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Re: [Emc-users] Atomic pi

[Gregg Eshelman via Emc-users]

What would be very useful is a little PC box made so it's built in peripherals 
leave a 64K free space between 640K and 1024K in the default location for LIM 
EMS 4.0. Even better would be a 32 megabyte chip on board for a hardware 
implementation of EMS. With today's tech-fu that chip could be used for a wide 
variety of other uses for systems other than DOS.
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Re: [Emc-users] Atomic pi --> software PWM

[Nicklas Karlsson]

> ...
> I have written machine code for the Bone's PRU for special 
> applications.  It is GREAT having a 32-bit CPU that can 
> toggle I/O pins in 5 ns. ...
I have done software toggling then no or not enough timers where available and 
consider real timers better, they are cheap so no reason to skip them for this. 
Some programmable logic might had been a good choice and or some peripherals 
like timers.


Nicklas Karlsson


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Re: [Emc-users] Atomic pi

[Jon Elson]

On 05/14/2019 11:46 AM, Gene Heskett wrote:

On Tuesday 14 May 2019 12:03:34 pm John Dammeyer wrote:

Why is there so much resistance to using the Beaglebone?
Because it actually has very little in common with the intel code.  It
may be a good deal, but it also requires learning all about the care and
feeding of a completely different architecture.
Have you ever looked at the X86 machine code?  There is a 
TINY bit of it in low-level drivers that access the parallel 
port. Otherwise, in LinuxCNC, there is ZERO machine code in 
the source.
Even in the above mentioned drivers, it is not actually REAL 
X86 code, but macros that work as if it was, to push and 
pull bytes to/from the parallel port.


I have written machine code for the Bone's PRU for special 
applications.  It is GREAT having a 32-bit CPU that can 
toggle I/O pins in 5 ns.  But, for LinuxCNC motion control, 
you DON'T have to ever look at that.  Charles Steinkuehler 
has done the heavy lifting, and step generators, encoders 
and PWM generators are already implemented.


So, if you want to run a few axes with drives that can be 
controlled with step and direction signals, the Beagle Bone 
is a VERY simple solution.  Small, low cost, flexible.


You need a Bone for $65, a micro-SD card for $12 and maybe a 
stepper "cape", I sell one for $80 that holds up to 6 
Pololu-style stepper drivers.  You can link to it through 
the USB port or through Ethernet, and display the GUI on a 
laptop or desktop.


Some of the resistance is that the Bone uses Machinekit, 
which is a fork of LinuxCNC, and is not as well documented 
or supported as LinuxCNC is.  However, a special distro kit 
is being maintained as a mainline distribution by Robert C. 
Nelson.  You get a micro-SD card, plug it into a USB SD card 
reader, and run a script on RC Nelson's web site, and in 
about 20 minutes, the SD card is ready to insert into the 
Bone and boot it.  You can connect a keyboard, mouse and 
HDMI monitor and set up the network, etc. that way, or use 
some other tools to get it on the net.
For general use, it is ready to go except for the network 
configuration.  For development, you will need to load some 
packages and the LinuxCNC source tree.


Yes, I know my way around the Bone and Machinekit, but 95% 
of what you know about X86 LinuxCNC will be ENTIRELY the same!


Jon



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Re: [Emc-users] Atomic pi

[John Dammeyer]

Gene,
> Can this bbb support at least two dozen or so bi-di gpio's, 4 or 5
> stepgens, at least 1 pwm, and at least 3 abx encoders?  Drive a
> 1920x1280 full color monitor at a frame rate above 5/sec? At what total
> cost?

The BBB has more I/O on it compared to the Pi and includes A/D.  Where it 
really fails is that the HDMI isn't well set up for 1920x1080P HDMI.  As a 
result the graphics side is a bit clunky.

But then LinuxCNC or the original EMACs ran on a much smaller PC.  MachineKit 
on the BBB does run with the Xylotex Cape.  I think for anyone wanting CNC with 
a small module it's a far better starting point.  

And realistically how many people are really working at the low level where the 
processor architecture matters? If you want lots of I/Os then SPI can do this.  
I think there are 3 quadrature inputs on the BBB processor but it may be only 
two.  Not sure there.

I've done a pseudo real time project with the Pi but to make it work I had to 
use  a Microchip PIC32 to capture and buffer the first 20 seconds of high speed 
CAN messages along with time stamping when they arrived.  Then, when the Pi was 
finally and we'd acquired the GPS Time of Day  awake I used SPI to bring the 
stored messages into the PI, retroactively adjust the TOD to match real time 
and save to files.  A different task ran in the background reading the  files 
and posting them up to a cloud database.

The point is, to do what we needed, the Pi needed an external co-processor.  
The BBB wouldn't have been any better since the bottleneck is the Linux boot 
time.  Only dedicated hardware is there within milliseconds of power applied 
ready to work.

That's not needed for a CNC system but waiting a minute after you turn on power 
is annoying.  
John




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Re: [Emc-users] Atomic pi

[Jon Elson]

On 05/14/2019 11:03 AM, John Dammeyer wrote:
Why is there so much resistance to using the Beaglebone? 
Or perhaps to say it another way, why would anyone even 
want to use a Pi when the Beagle has 1GHz processor and 
the two co-processors?
Well, yes!  The Bone, as supported by Linux, has pretty 
crummy graphics capability.  (There is apparently a powerful 
graphics engine in the chip, but TI won't open any of the 
details, so it can't be used under Linux.)  Still, if you 
don't load massive 3-D toolpaths into LinuxCNC, it works fine.
With large toolpaths, the graphical preview window bogs the 
whole GUI down.


But, the I/O capability and the PRUs for step generation and 
PWM is quite awesome.

It sure works for me!

Jon


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Re: [Emc-users] Atomic pi

[Gene Heskett]

On Tuesday 14 May 2019 12:03:34 pm John Dammeyer wrote:

> > On Tue, 14 May 2019 at 14:26, Gene Heskett  
wrote:
> > > > If it existed, the ideal thing would be the 7C80.
> > >
> > > But thats for a pi.
> >
> > Yes, and this thread is about a Pi variant
> >
> > --
> > atp
>
> Why is there so much resistance to using the Beaglebone?

Because it actually has very little in common with the intel code.  It 
may be a good deal, but it also requires learning all about the care and 
feeding of a completely different architecture. At my age, staying 
familiar enough with even 3 is a chore, and having first hand experience 
with the pi's shortcomings, I'd rather go back to a devil I know better. 

So while running this thing with a pi says I'm not allergic to saying 
screw you world, its an experience in discovering, and trying to work 
around it warts, the biggest one being that internal usb-2 hub thats in 
series with all but the spi and radio (wifi) interface.  When someone 
comes up with a radio protocol the smartphones can't hack into in 
sub-second times then let me know, otherwise the radios in the pi, and 
all the radios in the routers and switches are off and will stay that 
way at the coyote.den. 

>  Or perhaps to say it another way, why would anyone even want to use a
> Pi when the Beagle has 1GHz processor and the two co-processors?

The pi has 2, running at up to 1.4. But the gpu is 1st gen mali, and no 
support in the one realtime kernel that almost works.

Can this bbb support at least two dozen or so bi-di gpio's, 4 or 5 
stepgens, at least 1 pwm, and at least 3 abx encoders?  Drive a 
1920x1280 full color monitor at a frame rate above 5/sec? At what total 
cost?

> What is it with the Pi and the closed architecture that makes it more
> attractive?  Just curious.

The closed architecture, and pi foundations relative lack of support are 
I find a huge impediment. So IMO it was fun proving it could be done, 
but the experiment can come to an end when I have the time to do it over 
with something else. and it may as well be a devil I already know.


> Because when you think about it, the whole point of Linux (open
> source) is that it can't really go out of date.   Build something with
> a Pi clone and depending on the free market that Pi clone board may no
> longer be there.  For an individual user maybe it's not a big deal.
>
> The Replicape (no longer available) for the Beagle is now being
> upgraded to holding the processor (etc) and the motor drivers.  One
> board for both.  In the long run as long as the processor is available
> the module to run a 3D printer or small mill is then available.  But
> whether all that can be build less expensively compared to a COTS BBB
> is different question.
>
> John
>
>
>
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-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 



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Re: [Emc-users] Atomic pi

[andy pugh]

On Tue, 14 May 2019 at 17:06, John Dammeyer  wrote:

>
> What is it with the Pi and the closed architecture that makes it more
> attractive?  Just curious.
>

I use neither, so at least I am consistent. I am just trying to answer
questions and add to the discussion.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916

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Re: [Emc-users] Atomic pi

[John Dammeyer]

> On Tue, 14 May 2019 at 14:26, Gene Heskett  wrote:
> 
> >
> > > If it existed, the ideal thing would be the 7C80.
> >
> > But thats for a pi.
> 
> 
> Yes, and this thread is about a Pi variant
> 
> --
> atp

Why is there so much resistance to using the Beaglebone?
 Or perhaps to say it another way, why would anyone even want to use a Pi when 
the Beagle has 1GHz processor and the two co-processors?

What is it with the Pi and the closed architecture that makes it more 
attractive?  Just curious.

Because when you think about it, the whole point of Linux (open source) is that 
it can't really go out of date.   Build something with a Pi clone and depending 
on the free market that Pi clone board may no longer be there.  For an 
individual user maybe it's not a big deal.  

The Replicape (no longer available) for the Beagle is now being upgraded to 
holding the processor (etc) and the motor drivers.  One board for both.  In the 
long run as long as the processor is available the module to run a 3D printer 
or small mill is then available.  But whether all that can be build less 
expensively compared to a COTS BBB is different question.

John



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Re: [Emc-users] Atomic pi

[Gene Heskett]

On Tuesday 14 May 2019 09:45:44 am andy pugh wrote:

> On Tue, 14 May 2019 at 14:26, Gene Heskett  
wrote:
> > > If it existed, the ideal thing would be the 7C80.
> >
> > But thats for a pi.
>
> Yes, and this thread is about a Pi variant

Not really since its an intel atom cpu made to somewhat emulate the pi in 
its outside world connections. But if the ethernet plug has an internal 
usb hub between it and the cpu like the real pi does, it will wind up 
being a non-starter. That usb-2 hub in the pi is a serious data 
bottleneck that the spi and wifi interfaces doesn't have. An internal 
usb-3 hub would be a different kettle of fish. but the propaganda we can 
see today leaves out enough details to properly judge it. And I don't 
think thats an accident. We will have to spend the money to find out.

I'd also bet it has a UEFI bios, and our install iso's have no clue how 
to deal with that, I bricked the best odroid made at the time, a c2, 
trying. I am told a jtag programmer could bring it back but that's 2x 
the cost of the odroid, at about $150 for the whole kit, why bother?

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)
Genes Web page 



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Re: [Emc-users] Atomic pi

[andy pugh]

On Tue, 14 May 2019 at 14:26, Gene Heskett  wrote:

>
> > If it existed, the ideal thing would be the 7C80.
>
> But thats for a pi.


Yes, and this thread is about a Pi variant

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916

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Re: [Emc-users] Atomic pi

[Gene Heskett]

On Tuesday 14 May 2019 06:53:37 am andy pugh wrote:

> On Tue, 14 May 2019 at 06:22, Mark Johnsen  wrote:
> > With the onboard Gigabyte ethernet and wifi, you could probably go
> > ethernet to a 7i80 ethernet, 7i92 ethernet, or 7i76e  ethernet card.
>
> Pi Ethernet is on the USB bus, so can't be used.
> This might be different, of course, being a different architecture.
>
> If it existed, the ideal thing would be the 7C80.

But thats for a pi.  And Peters site won't let me access the manuals this 
morning for some unk reason.  As it was shown last night, I saw the 
ethernet support on most of that line was limited to ten Mbit. 100Mb 
would be MUCH better.  And since the 7i76d is designed to be a daughter 
to a 5i25, and has its own SSI buss for more I/O, I looked without 
success for an accessory card that would give me the extra encoders. Or 
maybe if this has a pci buss skot, I could used the 5i25/7i76 combo if 
Peter could put together a 5i25 file putting its two encoders on P2. I 
need at least 3 to run that lathe, and the 7i90 gives me 4.  And I 
already have it even though this copy has been noise damaged, there is 
enough I/O left to do it nicely.

All in due time Andy, the pi hasn't died yet. And this isn't shipping 
either.

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)
Genes Web page 



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Re: [Emc-users] Atomic pi

[andy pugh]

On Tue, 14 May 2019 at 06:22, Mark Johnsen  wrote:

>
> With the onboard Gigabyte ethernet and wifi, you could probably go ethernet
> to a 7i80 ethernet, 7i92 ethernet, or 7i76e  ethernet card.
>

Pi Ethernet is on the USB bus, so can't be used.
This might be different, of course, being a different architecture.

If it existed, the ideal thing would be the 7C80.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916

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Re: [Emc-users] Atomic pi

[Gene Heskett]

On Tuesday 14 May 2019 12:51:16 am Mark Johnsen wrote:

> > Not yet, sure looks interesting though. What does the whole kit, bob
> > and pdu shown cost?
> >
> > Maybe it could be our next D525MW but with an spi interface to a
> > 7i90HD?
>
> Amazon shows an availability date of 5/30.
>
> With the onboard Gigabyte ethernet and wifi, you could probably go
> ethernet to a 7i80 ethernet, 7i92 ethernet, or 7i76e  ethernet card.
>
> The whole enchilada with 2x boards was $108 on the dataloggers site.
>
I'll have to measure the box I have the pi<->7i90,3x 7i42's in, and see 
if I can find room for it.  Since the pi version of LCNC has been thrown 
under the bus due to the poor reliability of the odroid that was 
building it, I'll have to either start building LCNC from sources, or 
change back to something like this to run my Sheldon lathe.  If my other 
business takes off, I should be able to do it with something like this.

The 7i90 with its stack of 7i42's works very well, and gives 72 i/o lines 
to run the lathe with all on those little green screw terminals, very 
handy to wire up. The 7i76e doesn't need the 7i42's for noise 
protection, but the d version I put into the 6040 build doesn't have 
enough encoders to do what I'm doing with the pi-7i90 combo. I have a 
pair of the $20 MPJA dials on the front of the apron for x-z jog drive 
since cranks were removed in the conversion, with variable jog per click 
set up in my .hal, feeding two of the encoders in the 7i90, but the 
7i76e only has one encoder unless I can find a 5i25 file that puts 2 
more on the P2 connector, not in used ATM as the 7i76d is handling it 
all and still has some i/o left. So I'd better checkout the other two 
cards you mentioned to see if duplicate resources are available. I just 
did, and the 7i90 is it, no other board or board combo does enough 
encoders AND stepgens, I'd like to use the 7i76D, but I'd have to see if 
Peter could assemble a PROB_RFX2 file with 2 more encoders on p2. Or has 
a daughter card for the 7i76d that would supply the encoders.

How many ethernet ports does it have, the pix aren't that explicit, all 
my machines have at least 100Mbit net connections to the world thru my 
main router too.  It seems rather a kluge to hit the gigabyte switch in 
the garage just to hit another cable coming back to an e-net mesa card 
an inch away. If it only has one port, what happens to the connection 
latency when there is traffic from the other 3 machines out there now if 
such a hookup involving that 8 port switch was done? And what happens if 
that switch has to talk to a 100Mb target at the same time. I might have 
to upgrade all my net stuff to gigabyte. I think the 2 D525MW's have 
gigabyte ports, but the old Dell running the G0704 might be 100Mb. My 
net connection is only 10Mb down.  None of that appears to be a problem, 
but we aren't controlling heavy machinery with it either.

Thanks Mark, for materiel for future ploting.

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)
Genes Web page 



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Re: [Emc-users] Atomic pi

[Mark Johnsen]

>
> Not yet, sure looks interesting though. What does the whole kit, bob and
> pdu shown cost?
>
> Maybe it could be our next D525MW but with an spi interface to a 7i90HD?
>

Amazon shows an availability date of 5/30.

With the onboard Gigabyte ethernet and wifi, you could probably go ethernet
to a 7i80 ethernet, 7i92 ethernet, or 7i76e  ethernet card.

The whole enchilada with 2x boards was $108 on the dataloggers site.

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Re: [Emc-users] Atomic pi

[Chris Albertson]

I looked at their web site.  About $108 for the full developer kit but you
get two units, the pwr supply, and a camera.   It's a fantastic deal but
they are sold out.  They say "restocking now" and to buy them on Amazon.

$108 for two is a great deal.

On Mon, May 13, 2019 at 9:21 PM Gene Heskett  wrote:

> On Monday 13 May 2019 11:43:56 pm jeremy youngs wrote:
>
> > https://dlidirect.com/products/atomic-pi?fbclid=IwAR0k6hdGM6u1RJSVNLPn
> >kMxKnkg6CfnWs1szLEF9zhEj2YDZB0Z_PaWxVpQ
> >
> > Any trying this ?
> >
> Not yet, sure looks interesting though. What does the whole kit, bob and
> pdu shown cost?
>
> Maybe it could be our next D525MW but with an spi interface to a 7i90HD?
>
> 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)
> Genes Web page 
>
>
>
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-- 

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] Atomic pi

[Gene Heskett]

On Monday 13 May 2019 11:43:56 pm jeremy youngs wrote:

> https://dlidirect.com/products/atomic-pi?fbclid=IwAR0k6hdGM6u1RJSVNLPn
>kMxKnkg6CfnWs1szLEF9zhEj2YDZB0Z_PaWxVpQ
>
> Any trying this ?
>
Not yet, sure looks interesting though. What does the whole kit, bob and 
pdu shown cost?

Maybe it could be our next D525MW but with an spi interface to a 7i90HD?

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)
Genes Web page 



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[Emc-users] Atomic pi

[jeremy youngs]

https://dlidirect.com/products/atomic-pi?fbclid=IwAR0k6hdGM6u1RJSVNLPnkMxKnkg6CfnWs1szLEF9zhEj2YDZB0Z_PaWxVpQ

Any trying this ?

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