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Re: ecos: TCP/UDP/IP with Linux simulator


Jonathan Larmour wrote:

> Brendan J Simon wrote:
> 
>> I am designing a mobile robot with a wireless interface.  It will
>> communicate via TCP/UDP/IP to a server on a Linux host.  I want to
>> simulate all the robot software (including ecos with the tcp/udp/ip
>> stack) with ecos linux simulator.
>> Is this possible ?
>> Will the tcp/udp/ip interface simuate properly ?
>> Do I have to write some kind of dummy/simulation driver for the wireless
>> interface ?
> 
> The TCP stack cannot be simulated on the linux synthetic target yet. As I
> think you are hinting at, it is possible to write a "driver" that could use
> linux system calls to communicate with an external process, so that eCos
> thinks it is talking to an ethernet card when it isn't really. But no-one
> has done that yet.
> 
> And out of interest, eCos would require work to be ported to credit card
> sized PCs - the eCos PC port cannot be put into flash yet.

Looks like I'll stick to the powerpc MPC555 or MPC850 boards that I have 
found.  I'm sure it wont be hard to port these since there are other 
850/555 boards in eCos.

With regards to the TCP/IP thing, I'm sure I can conjour up something.  
Why can't the TCP/IP stack be simulated ??  The only thing I think you 
would need would be simulated physical drivers (eg. ethernet).

Thanks,
Brendan Simon.


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