Re: [Roboticsprimer-users] iCreate/gumstix

[Robotics P. u. h. l. <rob...@li...>]

> 1) do I need  to have player running on my host system if what is  
> the commandline
> I should use. I have only used Player/Stage as a simulator so far  
> and have no idea
> ho to connect it to the robot.

By "host system", I assume you mean your computer (the correct term  
is "client"). The answer is no. All you need on the client side is  
your own controller.

> 2)should something be running on the gumstix? if so how should I  
> down load it?

Yes. The Player server should be running on the Gumstix. If it is not  
there already, you need to follow:

http://playerstage.sourceforge.net/doc/Player-2.0.0/player/ 
group__tutorial__crosscompiling.html

To cross-compile it for the Gumstix.

> 3) does any one know how to set up the gumstix so it comes up with  
> a specified address? The instructions on the web site don't work in  
> my case.

The only way that I know is to edit /etc/network/interfaces. Answer  
these questions for me:

1. Do you know the IP address for your Gumstix (the static IP that  
you specified, without DHCP).
2. On your Desktop/Laptop, can you ping that IP address?
3. In your client.xml, does the IP address match (1)?

I suspect that that the reason the connection is refused is because  
Player isn't running on the Gumstix.

On Oct 8, 2007, at 3:46 PM, Robotics Primer users help list wrote:

> OK I have connected up a 6 volt supply to the gumstix.
> and it works ok
> the instructions for changing /etc/network/interfaces do not work.
> If I make either of the changes suggested in the intro text the  
> wifi does not work
> if I have the line
> iface mwlan0 inet 192.168.0.1
> in interfaces when the gumstix reboots it says somethimg like  
> 192.168.0.1 is not a method
> if I do it with the interfaces file as it came
> iface mwlan0 inet dhcp
> the ifconfig always, so far, says its address is 192.168.1.104
> so I move on to try the intro stuff
> when i try
> ./intro client.xml
> I get connection refused, even after I change the .xml file to my  
> address
>
> A few questions
> 1) do I need  to have player running on my host system if what is  
> the commandline
> I should use. I have only used Player/Stage as a simulator so far  
> and have no idea
> ho to connect it to the robot.
> 2)should something be running on the gumstix? if so how should I  
> down load it?
> 3) does any one know how to set up the gumstix so it comes up with  
> a specified address? The instructions on the web site don't work in  
> my case.
>
> If there is anyone out there who has got further than me in the  
> iCreate/Gumstix
> set up I would appreciate a reply.
>
> John Cummins
>
>
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