[asterisk-dev] using Hardware TDM switch

[M Desai]

Thanks. I see how it works. I am hoping having a HW TDM switch makes things
a lot more deterministic and hopefully I can get rid of a lot of code.


One of the things I am playing around is for a secondary microcontroller to
control the POTS line cards (FXO and FXS) and connecting to the
main processor via a DP-RAM. The idea is that the signalling info
is filled in by the uC and the main processor just gets an interrupt to indicate
signalling data is available in the DP-RAM. It is an overkill (but I am curious to see if my setup can hadle FXS port in the 400-800 range) but as I said I am just
playing around and fortunately have acccess to a HW prototyping setup !

M Desai


Khelik Mikhail <mixel.net at gmail.com> wrote: For this you should only correctly realize callback function which
will drive the hardware switch in your low-level driver and pass
pointer during the span registration, look into (*dacs) in the zt_span
structure.

2006/9/18, M Desai :
>
>
> I am trying out an old HW card which has one T1/E1 line, 8 POTS ports (4 FXO
> and 4 FXS) and a IDT TSI.I am trying to hack Zaptel to use the HW TSI so
> that only the signaling needs to be done in SW  and the TDM channels for
> data will be handled in HW.
>
> Looks like I need only to change Zaptel to achieve this. Any advise on this
> from the gurus out there ? Is this feasible ?
>
> Also looks like the Octasic code attempts something along these lines but I
> presume the TDM switch is inside the Octasic 6100 can be used only to switch
> TDM channels inside the Echo canceller.
>
>
>
> M Desai
>
>
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