Which TCP/IP stack is better, uiP or openTCP?

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Does anyone here have experience with above mentioned TCP/IP stacks? witch one is better for microcontroller such as MCS51?
 

uip vs lwip

uIP is good for every small MCU. It requires as little RAM as
is needed for single TCP/IP packet. RAM usage is really very low.

http://dunkels.com/adam/uip/
 

lwip vs uip

I need UDP, but it seems that uip does not support UDP, or maybe I am wrong?
 

compare uip lwip

I ported OpenTcp on 8052. I can tell, that it successfully works on controllers of 8052 family. The size of code memory for different variants:
40 kb - with serial link, protocols SLIP, IP, ICMP, UDP, TCP
11 kb - with ethernet link (CS8900A), protocols: ARP, IP, ICMP (UDP and TCP will be later)

Thus, there are difficulties with debugging using the monitor M*N51, when RAM is 32kb.

Alexey
 

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