please anyone help me!!!!

:O(


2007/11/23, Piero 74 <[EMAIL PROTECTED]>:
>
> Hi all.
>
> Can someone help me to understand options in opt.h (LWIPopt.h) which
> change memory usage?
>
> what are limits for each option? (for example NOT LESS THAN...)
> How each option is connected to others? (for example: options for
> sequential API and options for tcp and udp connections... )
> can i change pbuf options? (PBUF_POOL_BUFSIZE..... )
>
> in particular, i want to understand how reduce the following variables:
>  - ram
>  - memp_memory
>  - pbuf_pool_memory
>
> depending on number of simultanely connections (TCP, TCP LISTENER, UDP) (i
> have to use socket for apllication porting reasons)
>
>
> Correct me if i'm wrong:
>
> the total memory depends on 3 things:
>
> - memory for low level driver, where MAC layer puts ethernet frames
> - memory for LWIP (the above discussion)
> - memory for application task, which use sequential API and needs a owner
> buffers
>
> is it true?
>
> PLEASE HELP ME!
> i'm working on an example which use:
> - LWIP (1.1.1.. but i will update to 1.2.0) (ported from GNU to IAR)
> - FRERTOS FOR ARM7 (lpc2368 microcontroller)
> - lpc2368 EMAC driver
>
> i'm having a lot of problem, and i have to reduce memory usage...
> and at the last (....) i have to understand how to use lwip!!!
>
> Bye,
> Piero
>
>
>
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