[lwip-users] Re: [lwip] lwIP on DSPs

[John C. Toman]

Bill Knight wrote:

>  I'm new to this list and saw a post in the archives asking about
>attempts to port lwIP to a TMS320 DSP.  Well, I just stopped work on
>a port of it to a TMS320LF2407.  By far the most significant problem
>(the one that stopped me) is that at least this particular DSP has a
>16 bit char.  That specifically means that u16_t and u8_t are the
>same size.  Consequently the assumption that two successive u8_t's
>can be singularly accessed and combined into a single u16_t is false.
>lwIP (and most other stacks) seem to rely upon this assumption pretty
>heavily.
>  As an aside, the only stack I have found so far which seems to
>operate without major rework is CMX MicroNet.
>
>Regards
>-Bill Knight
>R O SoftWare
>
>
>
>
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>
Bill,

I'm interested in such a port as well, although not working on it 
currently, for the 5000 or 6000 series TI DSP's. The stack TI licenses 
is major money. It sounds like the char issue would cause some major 
work to get something like lwip to work ...

John Toman
Compendium Technologies, Inc.


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