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| michal |
 Posted: Wed Jul 04, 2007 10:45 am |
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Joined: 20 Jul 2006
Posts: 44
Location: London
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Hi,
I have seen recently presentation about the Recycler Robot programmed in Erlang http://nuxi.diit.unict.it/eurobot/ As far as I can understand the Erlang VM was running on a small embedded machine with a lot of USB ports. Is anyone running Erlang in such a way? What hardware? What embedded operation systems?
Thanks for any details,
Michal
--
Michal Slaski
http://www.erlang-consulting.com |
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| KatolaZ |
| Posted: Wed Jul 04, 2007 11:32 am |
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Joined: 04 Jul 2007
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michal wrote: Hi,
I have seen recently presentation about the Recycler Robot programmed in Erlang http://nuxi.diit.unict.it/eurobot/ As far as I can understand the Erlang VM was running on a small embedded machine with a lot of USB ports. Is anyone running Erlang in such a way? What hardware? What embedded operation systems?
Thanks for any details,
Michal
Hi Michal,
I can give you some info about the hardware used fot the robot you're talking about. It is a simple embedded PC, a VIA C3 @800Mhz, 128 MB of RAM, a 2GB flash, 2 USB ports, many serial ports (both RS232 and RS 485), ethernet, VGA, PS/2 and much more. You understand this is not a really "small" embedded system (128 MB of RAM are really a lot of space!), and I think it is still possible to put Erlang onto smaller devices (such as this one :
http://www.acmesystems.it/?id=4 which is REALLY small!)
The operating system used is Debian GNU/Linux (stable), with a 2.6.18 kernel. The Erlang application uses a driver to manage communication via the serial port (both for RS232 and RS485 communications) and a port to a small server written in C which is in charge of performing video capturing and analysis.
HND
Enzo |
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| michal |
| Posted: Tue Jul 17, 2007 5:57 pm |
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Joined: 20 Jul 2006
Posts: 44
Location: London
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Hi Enzo,
Thanks for your reply. In your case there was no need to cross compile,am I right? I was wandering if anyone tried to run Erlang on a smaller system like the one you pointed?
Michal |
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| KatolaZ |
| Posted: Wed Jul 18, 2007 7:04 pm |
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Joined: 04 Jul 2007
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michal wrote: Hi Enzo,
Thanks for your reply. In your case there was no need to cross compile,am I right? I was wandering if anyone tried to run Erlang on a smaller system like the one you pointed?
Michal
Well, Michal, AFAIK Erlang has been compiled also for ARM processors, so it is possible to pick a (not so) small embedded board based on ARM9 or ARM10 processors, and start playing with it. Consider that the emulator still requires a relatively large amount of memory, or at least a large amount in the field of embedded systems! In a couple of words, your board should have enough RAM (at least 32 MB, I think).
Cross-compiling to another architecture should not be a problem: gcc hides all the details, and a lot of mini-howto are available which explain how to build a toolchain needed for cross compilation.
HND
Enzo |
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