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Re: [lwip-users] Little endian
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From: |
Sergio R. Caprile |
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Subject: |
Re: [lwip-users] Little endian |
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Date: |
Thu, 26 Jun 2014 13:09:30 -0300 |
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User-agent: |
Mozilla/5.0 (Windows NT 5.1; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 |
Hi Fabian,
for clarity's sake:
lwIP uses internally its own representation, and there are macros to
convert from network format to host format. I guess all systems are more
or less like that.
You are supposed to have a fast macro, preferably with machine code
instructions, because it is going to be used a lot. That should be a
part of your arch port.
Have a look at (or just use) my ARM Cortex-M generic (CMSIS) port:
http://scaprile.ldir.com.ar/cms/category/os/lwip-port
and also have a look at my ethernet code to see how it uses that macro:
http://scaprile.ldir.com.ar/cms/el-ingeniero/open-source-projects-im-working-on/
Regards