Lpc2000

Hi,

Recently I was in the same dilemma. Is the OpenTCP project still active 
? I am about to integrate a TCP stack in my RTOS and I am choosing with 
which one to go.

marko
http://usmartx.sourceforge.net

Joel Winarske wrote:

>>Out of curiosity, how does this compare in performance or functionality to
>>Ethernut on ARM? There is also an LPC port for this under way.
>>    
>>
>
>Here's a brief overview of free stacks, in alphabetical order:
>
>Nut/Net (Ethernut) - IPV4, TCP, UDP, ICMP, PPP (minimal) - PAP, stack
>documentation?  fragmented packet support?
>
>lwIP 1.1.0 - IPV4, IPV6, TCP, UDP, DHCP, ICMP, PPP - PAP, CHAP, VJ, minimal
>documentation, fragmented packet support.
>
>OpenTCP - IPV4, TCP, UDP, DHCP, ICMP, DNS, BOOTP, TFTP, SMTP, POP3, HTTP,
>good documentation.  Fragmented packet support?
>
>uIP - IPV4, TCP, UDP, DHCP, SMTP, POP3, HTTP, TELNET, FTP, VNC, IRC, PPP -
>PAP, zero documentation, no fragmented packet support.  See Contiki project
>for recent code base.
>
>
>On the ones that support POP3 and SMTP, it appears clear text authentication
>is only implemented.  Most modern ISPs require more than this.
>
>The best performing would be dependent on a number of variables - in no
>particular order:
>
>1.  I/O bandwidth to EMAC.  This could be a combination of EMAC receive
>buffer size, DMA between EMAC and RAM, bit banged port, polled driver, or
>interrupt driven I/O.
>2.  EMAC hardware filtering - prevents MCU from handling unwanted traffic
>3.  Available MCU RAM.
>4.  Protocol stack - buffer management.  Zero copy?  Does stack offer
>predefined memory pool or is malloc() required?
>5.  Protocol stack - CRC implementation.  Some silicon offers hardware CRC
>to increase throughput.  Example - Maxim/Dallas DS80C4xx series.
>
>etc. etc.
>
>
>These are not specific to ARM, but Ethernet in general.  From here you weigh
>your design requirements, the MCU features, and the protocol stack.  The
>integration of the EMAC can be the biggest performance variable.
>
> 
>HTH,
>Joel
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>Yahoo! Groups Links
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