Which uC for VoIP

Question

Hi,I'm going to port a VoIP application (with security and a bit of DSPstuff) to a rather small embedded platform. So far, two good candidatesare IXP425 and MPC8541E (both running at 500Mhz), though the olderMPC8272E is still appealing. I can only spend time on one but I have noexperience with neither of them. Actually I cannot figure out how tocompare these new light-weight "network processors" from Intel to theclassic CPM-based chips offered by Motorola.Could someone give me a hint? I studied the specs, but still I have noclue. I'd need to hear from who already had the chance to test their realperformance.Thanks

Greg Neff · Accepted Answer

We bolted a TI TLV320AI22CPT VoIP codec onto an MPC8250 running at

250MHz. Our customer (who has ported Linux to our SBC) hasn't complained, so it must be working OK. We also have QNX running on this platform.

The integrated security hardware in the MPC8272 looks interesting, but I have to wonder how much effort would be required to build Linux/QNX/whatever drivers to support it.

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Greg Neff VP Engineering

*Microsym* Computers Inc. snipped-for-privacy@guesswhichwordgoeshere.com

Ulf Samuelsson · Answer

"Greg Neff"  skrev i meddelandetnews:Why use a "general purpose" chip, when there are lower cost dedicated VoIPchips around? They should be more optimized and thus more cost effective.-- Best RegardsUlf at atmel dot comThese comments are intended to be my own opinion and theymay, or may not be shared by my employer, Atmel Sweden.

Legrandin · Answer

You are right, they are, but in my case price is not a major concern (because of the little volume) and I am more interested in VoIP solutions belonging to a family of long-lived, widespread and well-supported uC.

Which uC for VoIP

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