Avalon ST Multiplexer -> is it possible to concatenate?

[amildm]

Hi, 

As for the Avalon ST Multiplexer (Embedded Peripheral) -> is it possible to concatenate such several multiplexers? 

The Avalon ST Multiplexer iself has 16 input interfaces, but I need to multiplex 20. How is it possible? 

Thanks!

[sstrell]

No reason why not.  Just connect them together in Platform Designer.

[amildm]

Let's say I concatenate them in the following way:

So, how will the inputs in0 through in19 be scheduled on the OUT output?

The in0 .. in19 are packet based 16bits width inputs (with start-of-frame and end-of-frame signals). 

How should I configure the MUX0 and MUX1 so that on the OUT port will be observed packets in0, in1, ... in19 in this certain order (in0, in1, ..., in19)?

Thanks!

[Wincent_Altera]

Hi,

You may refer to below

https://www.intel.com/content/www/us/en/docs/programmable/683091/22-3/per-packet-user-signal.html

Regards,

Wincent_Intel

[amildm]

The Avalon-ST Multiplexer doesn't have the Packet User Signal, only Start of Packet and End Of Packet. 

Again, as for the picture below, 

how will the inputs in0 through in19 be scheduled on the OUT output?

The in0 .. in19 are packet based 16bits width inputs (with start-of-frame and end-of-frame signals). 

How should I configure the MUX0 and MUX1 so that on the OUT port will be observed packets in0, in1, ... in19 in this certain order (in0, in1, ..., in19)?

Thanks!

[Wincent_Altera]

Hi,

Thanks sstrell for helping to answer on behave.

I wish to follow up with you about this case.

Do you have any further questions on this matter ?

​​​​​​​Else I would like to have your permission to close this forum ticket

Regards,

Wincent_Intel

p/s: If any answer from the community or Intel Support is helpful, please feel free to give the best answer or rate 9/10 survey.

[amildm]

The proposed solution is under test, will update the thread with the results 

[sstrell]

I would think you should have cascading muxes so a total of 3: in0-in15 on one, in16-in19 on the second one and the outputs of those two selectable through a third one.

[Wincent_Altera]

Hi,

I wish to follow up with you about this case.

Do you have any further questions on this matter ?

​​​​​​​Else I would like to have your permission to close this forum ticket

Regards,

Wincent_Intel

p/s: If any answer from the community or Intel Support is helpful, please feel free to give the best answer or rate 9/10 survey.

[Wincent_Altera]

Hi

As we do not receive any response from you on the previous question/reply/answer that we have provided. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you.

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Wincent_Intel

p/s: If any answer from the community or Intel Support is helpful, please feel free to give the best answer or rate 9/10 survey.