I just discovered it take about 200µs to write six bytes of process data in process RAM via SPI into the LAN9252 chip! It's horrible slow. I can't figure out they think about then they make SPI protocol like this.
Write adresse(s) and read/write as many bytes as needed had been the most obvious, now there are several commands and wait in between. On Fri, 2 Mar 2018 08:07:33 -0500 Kenneth Lerman <ler...@se-ltd.com> wrote: > Change the species. > > etherCAT becomes etherDOG > > Ken > > Kenneth Lerman > 55 Main Street > Newtown, CT 06470 > > > On Wed, Feb 21, 2018 at 4:51 PM, Nicklas Karlsson < > nicklas.karlsso...@gmail.com> wrote: > > > On Tue, 23 Jan 2018 08:17:52 -0500 > > Gene Heskett <ghesk...@shentel.net> wrote: > > > > > On Tuesday 23 January 2018 08:01:01 andy pugh wrote: > > > > > > > On 23 January 2018 at 03:26, Rod Webster <r...@vehiclemods.net.au> > > > wrote: > > > > > This link seems to confirm the Etherlab invocation is GPLv2 so you > > > > > may be right! > > > > > https://etherlab.org/en/ethercat/index.php > > > > > > > > Etherlab and SOEM are both GPL (or want to be) > > > > > > > > The problem is with Beckhoff who own the EtherCAT trademark and > > > > technology. > > > > > > Then we need to come up with a new name for it, and this interface chip > > > Nicklas has used offloads the technology aspect. So it seems to me that > > > should cover those 2 items of concern. I haven't a clue what to use for > > > a name and anything I would suggest would disqualify itself based on the > > > clean room principle. > > > > I could name the file "ethercat.c", soem is in a sub folder and set up a > > new repository on github? Or could I push somewhere else? > > > > I created a local fork but needed some method to configure devices and > > decided a CANopen gateway may be a good solution, it is CiA 309 if I > > remember correct. > > > > > > Nicklas Karlsson > > > > ------------------------------------------------------------ > > ------------------ > > Check out the vibrant tech community on one of the world's most > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > _______________________________________________ > > Emc-developers mailing list > > Emc-developers@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
