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[ts-7000] Re: TS-7260 Application

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Subject: [ts-7000] Re: TS-7260 Application
From: "kurmannthomas" <>
Date: Wed, 27 Jun 2007 19:12:35 -0000
 
> You will want to used fixed-point FFTs, if possible.  The floating 
> point performance is quite bad with these boards as delivered.  It 
> can be improved, but so far you have to pretty much roll your own 
> distribution to do so.  Search these archives for softfloat, eabi, 
> fft, etc.

Ok should be no problem, but thanks for the tipp!


> In linux, libusb is used for userspace usb interfacing.  I'd try 
> that first, if not then you need a kernel mode device driver.  
There 
> is quite a lot of documentation within the linux kernel source 
tree 
> about writing drivers, and also the 'bible':
> http://lwn.net/Kernel/LDD3/

Strange thing, im trying to work with the usb.h (which is strangely 
stored under linux/usb.h. WHen i compile with gcc (im programming in 
C not C++)I always get (for every function) something like this:

/tmp/ccK3I1O6.o(.text+0x28): In function `main':
: undefined reference to `usb_init'
/tmp/ccK3I1O6.o(.text+0x34): In function `main':
: undefined reference to `usb_find_busses'
/tmp/ccK3I1O6.o(.text+0x38): In function `main':
: undefined reference to `usb_get_busses'


this is beyond my knowledge, does anyone know what this means, and 
how to fix it?

Thanks alot!!






 
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