TCP/IP for small memory devices

[Joel Sherrill]

Derick Hammond wrote:

> Hi Joel, Eric:
>
> I was perhaps a little misleading in my last post.
>
> The specifications of the target board are:
>
>         512KByte EPROM used .text
>         128KByte RAM used for .data .bss and heap
>
> Does this improve my chances with the RTEMS TCP/IP Stack?


Yes but you will have to be careful about limiting the number of TCP/IP 
buffers.
See the Networking Guide and see how if you can build some test based upon
the httpd or ftpd sample that meets your requirements.

>
> Regards,
> Derick
>
> At 07:31 PM 8/07/2003 -0500, you wrote:
>
>> Derick Hammond wrote:
>>
>>> Hello All:
>>>
>>> Is there a document that suggests ways of tailoring the RTEMS 
>>> implementation of the TCP/IP stack for small memory foot-prints?
>>>
>>> The target board that I am writing my application for has a total of 
>>> 128KBytes of RAM, and I would like suggestions on how I can use the 
>>> RTEMS TCP/IP stack in this memory foot-print.
>>
>>
>>
>> Is this the total for code, data, bss, heap, etc?  Or do you have 
>> some Flash/Rom for code space?
>>
>> The code space for an application with TCP/IP is usually over 128K.  
>> I recall 256K being the
>> ballpark number on a 68k.
>>
>>>   Or would it be worthwhile porting TinyIP to RTEMS?
>>
>>
>> Most certainly, yes.  It is designed for lower memory footprints.
>>
>> There are others including http://dunkels.com/adam/uip/.  I don't 
>> know which would be the best to
>> port.
>>
>>>
>>> Thanks in advance.
>>>
>>> Regards,
>>> Derick Hammond
>>
>>
>>
>