[ECOS] Re: Re: ecos on ixdp425 to simulate a GSM network

[Rohit Agarwal <rohitrules at gmail dot com>]

Thanks a lot for your reply.

1. Yes, i meant normal eCos test programs. I have been able to run all of them.

2. Thanks for enlightening me on my wrong choice of linux drivers.
However, I have no previous experience with FreeBSD.
a. Can you explain me how to port the hardware driver as well as the
protocol stack of 802.11.
b. Can you also please tell me how to update the TCP/IP port.

Any references to any websites which might be of my help wuold be
greatly appreciated.

ROHIT

On 7/10/05, Andrew Lunn <andrew@lunn.ch> wrote:
> On Sun, Jul 10, 2005 at 11:40:45AM +0530, Rohit Agarwal wrote:
> > Hello,
> > 
> > I'm new to eCos and ixdp425. 
> > 
> > As a part of my college project, I am supposed to simulate a GSM
> > mobile network and add extra feature of Wi-Fi also. For that, I have
> > decided to use IXDP425 board and port eCos on it.
> > 
> > As till now, I have been successful in making test programs run on the
> > IXDP425 board compiled using a gcc compiler. Does that mean that I
> > have ported eCos on the hardware? 
> 
> I presume by test programs you mean the normal eCos test
> programs. Have you run them all? If they all pass then yes, you have
> made a port. Congratulations.
> 
> > Also, I am supposed to connect 2 GSM modems through the serial ports
> > and a Wi-Fi lan card that will fit in the PCI slot. The Wi-Fi lan card
> > should be such that its drivers for linux should be open-source and
> > freely available on the net. Can anyone suggest me a Wi-Fi lan card
> > which fulfils my requirements?
> 
> Using the Linux driver is probably the wrong solution. The TCP/IP
> stack in eCos is a port of the FreeBSD stack. You will find it easier
> to use the FreeBSD wlan drivers than a Linux driver. You should also
> be aware that its not just as simple as porting a driver. 802.11 has
> its own protocol stack which goes between TCP/IP and the hardware
> driver. You will need to port this stack as well. It will be
> complicated by the fact that eCos's port of the FreeBSD stack is quite
> old. You might find you need to update the TCP/IP port before you can
> put in the WLAN stack.
> 
>         Andrew
> 


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