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| From: | Chris Strahm |
| Subject: | Re: [lwip-users] pbuf pool size / mss size in low memory environmentand routing to slow link |
| Date: | Tue, 01 Dec 2009 08:53:51 -0800 |
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>> /* Number of receive buffers */ >> #define NB_RX_BUFFERS ( 16 ) >> /* Size of each receive buffer - DO NOT CHANGE. */ >> #define ETH_RX_BUFFER_SIZE ( 128 ) >> In other words: for the standard ATMEL EMAC driver in
the FREERTOS port for SAM7,
>> which defines the buffer size as 128 bytes (with a
big "do not change"),
>> i should have the PBUF_POOL_BUFSIZE in LWIP
defined to 128?
Yes I would think so. But if you have the memory it
might be a good idea to increase the number of buffers from 16 to much higher,
say 32, 48, or 64. 16x128 is only 2048 bytes total. That's not a lot
of buffer space, either for the EMAC or lwIP. But I do not know how the
memory is laid out or setup for that part.
Chris. |
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