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[lwip-users] Desired - reference netconn_write() to external memory
From: |
Alan Lamphier |
Subject: |
[lwip-users] Desired - reference netconn_write() to external memory |
Date: |
Tue, 10 Oct 2006 16:01:56 +0000 (UTC) |
User-agent: |
Loom/3.14 (http://gmane.org/) |
I've 'inherited' an application where I need to pull GB's of data out of a tool
running on a AT91SAM7X256.
Currently I simply play with...
- the data is read from external memory and buffered in RAM
- netconn_write() is called with COPY enabled
- the loop repeats
I don't have the processor memory to optimally up the pbuf and memory lwIP
options for a large data transfer application.
What came to mind today was the possibility to call netconn_write() with
NO_COPY, referencing an external memory location instead of pointing to an
internal buffer.
Any thoughts? - not worth it?
Gut feeling - would it be a large code rewrite/addition?
Have you lived with or solved similar problems doing large data transfers?
Thanks,
Alan
- [lwip-users] Desired - reference netconn_write() to external memory,
Alan Lamphier <=
- Re: [lwip-users] Desired - reference netconn_write() to external memory, Kieran Mansley, 2006/10/10
- Re: [lwip-users] Desired - reference netconn_write() to external memory, Çağlar AKYÜZ, 2006/10/11
- [lwip-users] Re: Desired - reference netconn_write() to external memory, Alan Lamphier, 2006/10/11
- Re: [lwip-users] Re: Desired - reference netconn_write() to external memory, Çağlar AKYÜZ, 2006/10/11
- Re: [lwip-users] Re: Desired - reference netconn_write() to external memory, Kieran Mansley, 2006/10/11
- Re: [lwip-users] Re: Desired - reference netconn_write() to external memory, Kieran Mansley, 2006/10/11
- Re: [lwip-users] Re: Desired - reference netconn_write() to external memory, Çağlar AKYÜZ, 2006/10/11
- Re: [lwip-users] Re: Desired - reference netconn_write() to external memory, Tom Hennen, 2006/10/11
- Re: [lwip-users] Re: Desired - reference netconn_write() to external memory, Çağlar AKYÜZ, 2006/10/11
- [lwip-users] Re: Desired - reference netconn_write()to external memory, Alan Lamphier, 2006/10/11