Re: [lwip-users] LWIP Stack [using TCP] buffer limit

[Jonathan Larmour]

Muhamed Fauzi Bin Abbas wrote:
> Hello,
> 
> I have managed to get LWIP working on an RTOS called T-Kernel. I have
> also added a simple http server on it. However, I recently realised that
> I can only access files that have a max file size of 63K. Anything
> bigger then 63K would return only part of the file. So if I tried to
> retrieve file ranging from 64K and above, I would only get about 30K of
> data, but if I tried to retrieve a 63K or smaller file, I can get it
> completely.
> 
> I suspect I might be due to a buffer limit, but I do not know where to
> look at. I have tried to read and re-read the lwip documents and past
> mailing list, but can't pin-point where the limit might be set (too many
> option which I do not understand). Can anyone please point me out to a
> right direction so that I may be able to resolve this problem. Thank
> you.

Which API are you using? And which version of lwIP? With the raw API, lwIP
can only write up to 64k at a time. With other APIs it should work, but
maybe hasn't been well tested.

Jifl
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