[IPython-User] Ipython for Angstrom

Ryan Krauss ryanlists@gmail....
Tue Sep 7 22:09:10 CDT 2010

Thanks.  Yea, I eventually got IPython to run on the BeagleBoard
without a problem.

But we hit a roadblock with deadtime in between serial transmissions.
My work at this point depends on being able to send 5-10 bytes of data
back and forth to a microcontroller that is doing real-time control
with update frequencies of 500-1000 Hz.   We are running a test where
we just echo data back and forth with the micro to test the loop time.
 We were hoping that the BeagleBoard would be an improvement over a
laptop mainly because there is less stuff going on and more control
over the hardware.  It hasn't worked out yet.  And we have struck out
with several approaches to reducing the deadtime.  The PC just seems
to sit there doing nothing.  The annoying thing is that windows can
run the code with 500 Hz update frequencies without a problem.  We
haven't found a linux approach that can do better than around 250 Hz.

On Tue, Sep 7, 2010 at 2:05 AM, Fernando Perez <fperez.net@gmail.com> wrote:
> Ryan,
> On Thu, Jul 29, 2010 at 3:10 PM, Ryan Krauss <ryanlists@gmail.com> wrote:
>> I would like to run IPython on my BeagleBoard, which is running the
>> Angstrom linux distribution.  I am trying to do a from source install,
>> but there seem to be a number of basic packages that come with a
>> standard Python install that have not been ported to Angstrom yet.  I
>> had to install pprint separately, but am now stuck on platform.py.  I
>> am going to try just coping from my pc, but I doubt it will work and I
>> doubt it will be the last problem.
> sorry for never having replied to your queries, I've had my nose to
> the grindstone on the -dev side of things and have neglected terribly
> the user list...
> Did you get this to work in the end?  I was thinking that with the new
> zmq code, it would be possible to get your ipython kernel running on
> your board, while having your frontend run on a larger computer with
> more GUI resources.  That could be an interesting way to work...
> Just a thought :)
> Regards,
> f

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