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MiniUpnp on 8bit µC like Atmel AVR or Microchip PIC

 
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Eskimo22



Joined: 31 Oct 2007
Posts: 1
PostPosted: Wed Oct 31, 2007 4:47 pm    Post subject: MiniUpnp on 8bit µC like Atmel AVR or Microchip PIC Reply with quote
Hello,
it's possible to run MiniUpnp with Atmel AVR ATmega128 and the uIP Stack from Adam Dunkels (w*w.sics.se/~adam/uip/index.php/Main_Page) ?

Or does someone know a solution for this combination ?

Thy for your replay
Ralf

PS: The mega128 has 128Kb Rom and 4k Ram
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miniupnp
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Joined: 14 Apr 2007
Posts: 1594
PostPosted: Wed Oct 31, 2007 10:45 pm    Post subject: Reply with quote
The miniUPnPc library was designed to run on POSIX or MS Windows systems by using BSD style sockets.
It would require some coding effort to port it on another TCP/IP stack API but it is possible as long as the TCP/IP stack supports :
- Sending UDP packets to multicast address (should be ok for any stack, it requires a lot less than supporting the RECEIVING on multicast address)
- TCP.

What may be a show stopper is the 4KB RAM : UPnP protocol is using XML descriptions that are allready bigger than that. SOAP is also very memory consuming.

A better alternative for very low memory clients is NAT-PMP : UDP only, very simple messages.
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