Hello List, Yes Don has been doing some fine work on a 700D port to the STM32, lots of progress in with the new OFDM modem (with Steve's help) and crucially - the LDPC FEC decoder required for that mode. We have been carefully unit testing at each stage, and comparing our results to reference code on the x86.
Oh and I think Richard is making progress on a cmake build system for the STM32. At some point we'll need to take a look at the SM1000 "main loop" and menu subsystem that Stuart did some fine work on a few years ago, and integrate the 700D mode. Steve - I don't anticipate too many problems getting the ADC/DAC subsystem to work with 700D. The memory required is only a couple of k bytes in total. Happy to work with you if you on that one, say a project to build up some unit tests. - David On 07/09/18 04:36, Don wrote: > I have been working on some of this, with David's guidance. > > I have the OFDM modem and LDPC working in separate stand alone tests. > Yes there were significant memory issues but they were not too hard to > resolve. There were also some performance issues to address. We plan a > blog post soon on the details of this part. > > The next step is to fold these changes into the main stream version making > sure not to break anything on the x86 desktop implementation. This will > likely push some changes into other parts of the code, such as using floats > instead of doubles when that is good enough. > > Then other parts of the code will need to be looked at and tested. > I'm sure there are places where others could help on this, I'll let > David coordinate that. > > > Can anyone tell us what was changed around the input such that the > older SM1000 ADC code wouldn't still work for getting data in? > > > Don Reid - W7DMR > > > On Thu, Sep 06, 2018 at 06:48:59PM +0200, Jacob Falzon wrote: >> Hi there, >> >> I had an idea about trying to get the 700D mode working on the SM1000. >> Frankly I already tried implementing. The code compiles, and the board >> works. Problem is there is no data coming from the ADCs into the FIFOs. >> >> I am thinking it may be a memory issue? What do you think? >> >> Thanks and kindest regards, > >> ------------------------------------------------------------------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! http://sdm.link/slashdot > >> _______________________________________________ >> Freetel-codec2 mailing list >> Freetel-codec2@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Freetel-codec2 mailing list > Freetel-codec2@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
