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Re: [lwip-users] Need Help for "Configuration for lwIP"
From: |
GICINDIA |
Subject: |
Re: [lwip-users] Need Help for "Configuration for lwIP" |
Date: |
Thu, 21 Jun 2012 23:41:19 -0700 (PDT) |
>There isn't a correct configuration (just lots that are OK, and some that
are not) as the values chosen >will vary depending on hardware, memory
available, performance needed, and so on. Have a look how >MEM_SIZE is used
in the code to discover the different uses for it, and to get a better idea
of how you >should set it for your system.
The application is running on Cortex M3 micro-controller. And it has 64k RAM
size, out of this my application hardly takes 10k RAM(not considering lwip
RAM size).
After going through the code i found that for receiving it uses PBUF_POOL
as well as PBUF_RAM. But while transmitting it uses PBUF_RAM only and
PBUF_RAW is used as pbuff_layer.
My requirement is large size of file transmission & reception simultaneously
which i m not able to achieve.
Please suggest suitable lwip configuration for my application.
Asma.
Kieran Mansley wrote:
>
>
> On 13 Jun 2012, at 07:26, GICINDIA wrote:
>
>> Can any one tell me which configuration (1st or 2nd) is correct one or
>> none
>> of these?
>
> There isn't a correct configuration (just lots that are OK, and some that
> are not) as the values chosen will vary depending on hardware, memory
> available, performance needed, and so on. Have a look how MEM_SIZE is
> used in the code to discover the different uses for it, and to get a
> better idea of how you should set it for your system. Which memory lwIP
> allocates things from is also highly configurable, so I don't think there
> is a simple answer for you.
>
> Kieran
>
>
>
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>
>
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