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Author Topic: Why UDP_TX_PACKET_MAX_SIZE have 24 bytes?  (Read 500 times)
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Rocco83
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« on: April 28, 2012, 11:24:22 am »
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Hi,

this is the first post for me...
so hi all smiley

said that, why UDP_TX_PACKET_MAX_SIZE is only 24 bytes?
Can i raise it up somehow?

i simply does not get the point smiley-wink

bye
d.
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cjdelphi
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« Reply #1 on: April 28, 2012, 11:28:47 am »
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My bet is purely to save memory.... 2k sram, you're not going to be happy to find the TCP IP library uses up 1.5k of it are you? lol
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Rocco83
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« Reply #2 on: April 28, 2012, 11:43:52 am »
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Hi cjdelphi,

thanks for your interest.

But if i want to use only UDP in my arduino? smiley
Why can't I decide how many sram for each protocol?
I already have a working framework, rewriting it is a pain!

so my second question is still:
Can i raise it up somehow?
smiley-grin

thanks,
d.
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cjdelphi
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« Reply #3 on: April 28, 2012, 11:44:54 am »
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simply change the values... should be that simple (all the const variables in the ethernet files)
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Rocco83
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« Reply #4 on: April 28, 2012, 12:15:08 pm »
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Just to be sure about it:
i have to find (after arduino installation) the library and change the value in the .cpp and .h (or whatever), correct?

If i copy the file in my library which one is used?
my local or global library?
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