2 UDP connections

[Sigma]

Hi, all,
Have anyone tried getting 2 UDP connections working simutaneouly with Siemens MC35i? One of my customers wants my PIC to open 2 connections with different ports to cater for TX and RX respectively. IS it doable?
Please advice.

Sigma

[asmallri]

I have not done anything with the Siemens device mentioned. However, from a generalized standpoint, every socket (or connection) is bidirectional. Therefore a single socket (connection) handles transmit and receive.

Now it may be that a specific application uses one direction for data and the reverse direction for control / status. In this scenario (at least) two sockets (connections) would then be required.

There are a couple of variations on this theme, use one socket for bidirectional data, and the other for bidirectional control. The other variation is to multiplex bidirection data and control on the same connection (conceptually using a port within a port).

Can you do it? That depends on you application and how you code it - it is simple enough to code. For most of my network applications, including my demos, I use one or both of the variations outlined above.
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Regards, Andrew

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[Sigma]

Thanks, asmallri.
My customer tried 1 socket (TX and RX together) before. But they claimed that sometimes the TX data from the server was not sent to the embedded device (using MC35i). What will be the possible reasons?

regards
Sigma

[asmallri]