Hi George, In addition to Marcus' response. Engineers who works in a context where an embedded "production design" is the end goal will want to leverage the SoC's FPGA to its full potential. To do that they will target the ARM processors (with an Embedded OS) using GNU Radio, and target the FPGA with Matlab/Simulink either using the MathWork's HDL coder or Xilinx System Generator to avoid tedious HDL coding.
If you follow the link bellow, you will find an OFDM physical layer (802.11a) implemented in a Zynq's FPGA using Simulink and Xilinx System Generator combiened (graphical tools to program FPGAs). Upper layer data is sinked/sourced from GNU Radio. The GNU Radio application runs on a laptop in this example but it'll run just the same on the Zynq's ARMs http://nutaq.com/en/blog/video-ofdm-zeptosdr-and-gnu-radio Cheers, ~Tristan -----Message d'origine----- De : discuss-gnuradio-bounces+tristan.martin=nutaq....@gnu.org [mailto:discuss-gnuradio-bounces+tristan.martin=nutaq....@gnu.org] De la part de Marcus Müller Envoyé : 4 avril 2014 05:47 À : discuss-gnuradio@gnu.org Objet : Re: [Discuss-gnuradio] embedding -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi George, I think you're talking about Matlab, aren't you? Matlab has a resource hungry interpreter for its scripting language. Embedding that will be possible. Matlab *can* (in many cases) generate C/C++ code, but that will also only work with a fully-fledged OS underneath; also, the Matlab-supplied compiler links against a matlab supplied standard runtime, which effectively eliminates portability. Generally, comparing Matlab to GNU Radio is a lot like comparing apples and pears -- you can do signal processing with both, but the idea behind is quite different. GNU Radio is a C++/python-based framework. As such, it needs a runtime to work on; you won't get far without an OS (memory allocation/management, threading etc are all in especially heavily used) You can actually generate GNU Radio applications without using python, thus reducing the need for dynamicly loaded libraries heavily. So to be realistic: Embedded OS for GNU Radio boils down to using Linux, for example in the shape of OpenEmbedded/Yocto. That has been proven numerous times to work quite well. I haven't actually tried, but in theory you should be able to statically link with GNU Radio. I honestly don't know if you win much by that -- I imagine a embedded platform that's powerful enough to do useful RF signal processing will most probably not be limited by a few MBs of superfluous libraries lying around; but maybe I'm wrong about that. If you want to see an embedded GNU Radio based Signal Processing hardware in action, there are several people that use raspberry Pi's together with RTL-SDR dongles, or take a look at the Ettus Embedded USRP series -- these are ARM platforms running an Angstrom Linux distribution. So to answer to your considerations: The GNU Radio approach is usually to develop your application on your workstation, and run it on an embedded device that's powerful enough. It's been proven to work well :) Greetings Marcus On 04.04.2014 10:20, George Refseth wrote: > Hi > > Anyone with input as to the feasibility of maintaining either > gnu-radio or math-lab design and have something embeddable without > pulling the whole environment into the target? Generating c or c++ to > be compiled for the target with or without a real-time os. > > What I foresee as a problem is the transfer of design from modelling > to run-time, and that becomes a one-way road and only done once so > that one looses the value of the model be it gnu-radio or math-lab > based. > > best regards, George Refseth > > _______________________________________________ Discuss-gnuradio > mailing list Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTPn+xAAoJEBQ6EdjyzlHtU1oH/jQaYIfIvpa6q1OeXOWbRdf8 xrYWAlpyfZTd7sg4sX081n2abfhH67qV5fT2OnuD8QGjPygwI6/AI/ptLGPNp+6C EnUS5HlEv5q1PHh1HZiKfPouUZv9aq1BZrtFi2G19OXpGyK8rV65anyahta7B4lw AlhPTgjtbsEG+yeub0zrhjQU+rZjjvYP3q+rFuiyYBGuJGeN+tLMAFZdlZXk0q6V 4wRvZGM4C9goCDwuhpdI+C7/N9ZX/Tys+0FlagSKcCHn9b8Ns5+VfemlzDIzUo/s 1Qk4OlTo+78bJ/RqspnbP5AtwVOy9cSA4B7yJHcur10OeyYEukMAnNBeOf3MxM4= =A7NH -----END PGP SIGNATURE----- _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
