Speex dev - Jul 2006 - Using Speex on OMAP5910 OSK board

Hello,


 


I have an OMAP5910 OSK board with C55 dsp and ARM9 processor. I just want to 
use speex as a simple application on the platform in order to check dsp's 
working well or not. 


 


First, I found speex's source codes include "ti/speex_C55_test"
directory so
I thought speex could run on my platform well.


Second, I open "Code Composer Studio" and then open the project file
in the
ti/speex_C55_test directory, build it. At last I got
"speex_C55_test.out" file
in ti/speex_C55_test.


 


001. How can I test speex_C55_test.out or the program?


 


002. I found the line "bitsFile = 
"c:\\speextrunktest\\samples\\malebits.dat";"  in
ti/testenc-TI-C5x.c
file. Does it mean that if I want to run the program on dsp chip, it must have 
filesystem to support it?


 


So, my ultimate question is


 


>> How I can use speex as a simple application on C55 dsp chip
without
filesystem?


 


I'm totally newbie at OMAP board and codec. If my questions are silly, 
forgive me~




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> I have an OMAP5910 OSK board with C55 dsp and ARM9 processor. I just
> want to use speex as a simple application on the platform in order to
> check dsp's working well or not. 
Wouldn't computing a sine wave be much easier? ;-)
> 001. How can I test speex_C55_test.out or the program?
Can't help here. Read the manual for your tools.
> 
> 002. I found the line "bitsFile = "c:\\speextrunktest\\samples\
> \malebits.dat";"  in ti/testenc-TI-C5x.c file. Does it mean that
if I
> want to run the program on dsp chip, it must have filesystem to
> support it?
No. It means you need a filesystem to test Speex with this particular
example. The libspeex library is pretty much pure "math code", with
almost no dependencies.
> >> How I can use speex as a simple application on C55 dsp chip
without
> filesystem?
You'll need to write your own application based on the sample code and
find somewhere to send the result (or discard it, but that isn't very
useful).

	Jean-Marc

>> 001. How can I test speex_C55_test.out or the program?
>
> Can't help here. Read the manual for your tools.
>>
>> 002. I found the line "bitsFile =
"c:\\speextrunktest\\samples\
>> \malebits.dat";"  in ti/testenc-TI-C5x.c file. Does it mean
that if I
>> want to run the program on dsp chip, it must have filesystem to
>> support it?
>
> No. It means you need a filesystem to test Speex with this particular
> example. The libspeex library is pretty much pure "math code",
with
> almost no dependencies.
>
>> >> How I can use speex as a simple application on C55 dsp chip
without
>> filesystem?
>
> You'll need to write your own application based on the sample code and
> find somewhere to send the result (or discard it, but that isn't very
> useful).
The C55 build provided with Speex is configured to run in the TI C55x 
simulator (the README file says this).  To run it on a real hardware 
platform, you would need to add some method of getting audio samples and 
data into and out of the program.  If you planned to use file I/O, then you 
would need a file system.  On an OMAP, there should be some mechanism for 
communicating between the ARM and the DSP, and you would probably use that 
mechanism to pass the audio and compressed data.

The easiest way to get started is to find an example program that was 
provided with your board (hopefully one that does audio processing), and 
modify this to add the main loop from testenc_TI_C5x.c.  This will take some 
work.

But, like Jean-Marc said, if all you are trying to do is prove that the DSP 
is working, you could pick something much simpler than Speex to do this.

- Jim