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TCP/IP & GPRS

 
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xpercad



Joined: 27 Jun 2004
Posts: 12
Location: MÉXICO

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TCP/IP & GPRS
PostPosted: Fri Jul 30, 2004 8:30 am     Reply with quote
Hi Group,

I need to find out how much code space and RAM will be needed on a PIC 18f252 for a TCP/IP stack like the one Micrchip offers or the Jeremy Bentham code (TCP/IP LEAN) if I need the following features:

1) PPP (LCP, PAP and IPCP)
2) DHCP Client
3) ICMP
4) TCP
5) UDP
6) DNS

I will be connecting my device using a Siemens XT55 GPRS modem.

Help will be highly appreciated.

Best Wishes,

Aaron
Mark



Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA

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PostPosted: Fri Jul 30, 2004 10:41 am     Reply with quote
I do not believe DNS is supported.
xpercad



Joined: 27 Jun 2004
Posts: 12
Location: MÉXICO

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PostPosted: Fri Jul 30, 2004 11:42 am     Reply with quote
Thanks Mark, I should have put the note that DNS is desired but I can live with out it.

Anybody has a ball-park idea regarding FLASH and RAM requirements for the TCP/IP functions listed (bar DNS) ????
Guest
PostPosted: Sat Jul 31, 2004 2:54 am     Reply with quote
AN833, page 67

http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en011993

http://www.microchip.com/stellent/groups/designcenter_sg/documents/designcenter/en019564.pdf
Guest
PostPosted: Sat Jul 31, 2004 2:56 am     Reply with quote
AN833, page 67

http://ww1.microchip.com/downloads/en/AppNotes/00833b.pdf
Ttelmah
Guest
PostPosted: Sat Jul 31, 2004 4:25 am     Reply with quote
Anonymous wrote:
AN833, page 67

http://ww1.microchip.com/downloads/en/AppNotes/00833b.pdf

Try page 90 instead.
xpercad



Joined: 27 Jun 2004
Posts: 12
Location: MÉXICO

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PostPosted: Sat Jul 31, 2004 10:58 am     Reply with quote
Thanks a lot guys !!!!! Very Happy
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