Actually, if you are talking about the "imbedded linux" in my reply below -- that is probably *my* fat-finger when composing the e-mail, not a misspelling on his part. My main point is that "embedded Linux" is very different from "embedded bare metal", which is where I want to go. Embedded Linux requires an MMU and lots of RAM, uCLinux requires an MPU and lots of RAM -- I want something that will fit in low-end 32 bit ARM with no external RAM, or some such widget.
-dave
On Sep 12, 2012, at 1:56 PM, blackstag wrote:
> Hah ok will tell Paul to spell right. Is Ros serial using sockets for small embedded linux processors. It was implemented on the Vex Pro and Chumby in our testing.
>
> On Wed, Sep 12, 2012 at 2:58 PM, Dave Curtis <dave@dave-curtis.com> wrote:
> OK, so I see the rosserial_embeddedlinux package supports TCP, I didn't see that before. But it does say "imbedded Linux", which is still considerably different from an MMU-less uCtlr. So, is rosserial_embeddedlinux more light weight than its name would imply?
>
> -dave
>
> On Sep 12, 2012, at 11:43 AM, blackstag wrote:
>
> > Ros serial does have a TCP option now for wifi or ethernet.
> >
> > On Wed, Sep 12, 2012 at 1:14 PM, Dave Curtis <dave@dave-curtis.com> wrote:
> > I've been searching the archives for info on this topic but everything I turn up is pretty ancient.
> >
> > Suppose you have an embedded device that has an ethernet controller and enough oomph to run a TCP stack and an RTOS, for instance an ARM Cortex-M3. Is it possible to run roscpp on the bare metal, or does roscpp depend on a lot of Linux system services? Of course, rosserial would be an option, but if you have an ethernet controller on chip, that seems limiting. Or is there another light-weight ROS comms on TCP that I don't know about?
> >
> > -dave
> >
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