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Experiences with uIP + LPC21xx + enc28j60 ?   Message List  
Reply | Forward Message #43121 of 45917 |
I've been running some tests with FreeRTOS + uIP + enc28j60 (1Mhz SPI bus
<limited because of my board configuration>),

I know that TCP upload is limited because uIP can only have one packet
"travelling"
per connection, that's ok.

But, for download I only get ~12KB/s max for sites downloading >2MB/s on my
DSL.

Is there any know limitation on uIP stack related to downloads?

Any experiences on this? :)

Thanks in advance,
Miguel Angel.

--
Miguel Angel Ajo Pelayo
http://www.nbee.es
+34 91 120 1798
+34 636 52 25 69
skype: ajoajoajo


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Mon Jul 6, 2009 6:23 pm

mangel_ajo
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Message #43121 of 45917 |
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I've been running some tests with FreeRTOS + uIP + enc28j60 (1Mhz SPI bus <limited because of my board configuration>), I know that TCP upload is limited...
Miguel Angel
mangel_ajo
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Jul 6, 2009
6:24 pm

You may want to check my implementation of the same thing in the LPC2148 demo code (http://jcwren.com/arm). I don't recall what the actual rate was, but it...
J.C. Wren
jcwren
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Jul 6, 2009
7:38 pm

Hi Wren! :) My system code (only for that part) is based on your uip/en28j60 freertos implementation :-), so it's a good moment to say thanks, because you...
Miguel Angel
mangel_ajo
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Jul 7, 2009
8:12 am

I think that the problem comes from an small TCP anounced window. I increased the buffer size, activated the uIP packet reassembly, and It works faster, but...
Miguel Angel
mangel_ajo
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Jul 7, 2009
9:14 am
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