[Asterisk-Dev] Asterisk Hardware Platform - Intel x86 versus Intel RISC Xscale (ARM)

[Holger Schurig]

> Consider that Xscale is used in PDAs where latency isn't really as much
> of an interest as low power usage.

Xscale is an architecture with at least two lines:

the PDA line, e.g. PXA25x, PXA27x

the Networking line, e.g. IXPxxxx



The IXPs had higher frequency and a PCI interface.


One thing that is always an issue with a RISC type chip is alignment. You 
might need to adjust your source code to get alignment correct.

Another thing is board and driver support under Linux. E.g. sometimes the 
hardware is there, but the software is lacking. There are so many ARM 
based embedded boards out there, but only a few of them are in the Linux 
2.6 kernel tree.