[asterisk-embedded] DTMF

[Stelios Koroneos]

Denx has both fp and nonfp toolchains (at least for the powerpc I have
checked)
I am not sure about arm as I have never used a Denx arm toolchain
Better send them an email, they are very responsive.

Another way to find if your toolchain support soft-fp is to disable the fp
kernel emulation and try and run asterisk (or any other app that requires
fp)
If your toolchain does not have soft fp you will start seeing "illegal
instruction" messages and the programs will segfault


Stelios S. Koroneos

Digital OPSiS - Embedded Intelligence
http://www.digital-opsis.com
 

> -----Original Message-----
> From: asterisk-embedded-bounces at lists.digium.com 
> [mailto:asterisk-embedded-bounces at lists.digium.com] On Behalf 
> Of Mathieu Roger
> Sent: Wednesday, June 11, 2008 10:41 AM
> To: Asterisk Embedded Development
> Subject: Re: [asterisk-embedded] DTMF
> 
> I have search on the website of my compiler
> (http://www.denx.de/wiki/DULG/ELDK)
> I havn't find information about the floating.
> 
> Do you know a compiler that generate soft-floats for ARM?
> Thanks
> 
> 
> 
> > Dtmf detection requires floating point Does your toolchain generate 
> > soft-floats or are you using kernel float emulation ?
> >
> > If you are using the second then dtmf detection probably won't work 
> > very well (or at all) as kernel emulation is really slow 
> (you get an 
> > exception for every fp opcode)
> >
> > Stelios S. Koroneos
> >
> > Digital OPSiS - Embedded Intelligence
> > http://www.digital-opsis.com
> >
> >
> >
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> 
> 
> --
> Mathieu Roger
> IUT de Valence
> 
> 
> 
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