On Tue, 2007-05-01 at 08:56 -0400, John Kasunich wrote: > Seb James wrote: > > Hi List, > > > > This message is about the latest 5i20 FPGA code which John Kasunich said > > he was working on in February this year (around then anyhow). > > > > The feature in this new code which I need is the ability to configure > > the 5i20 with between 0 and 8 axes of (pwm)servo outputs and encoder > > inputs with the rest of the 5i20 I/O being used as simple logic inputs > > and outputs. > > > > In my case, the servo/encoder i/o will be routed through a Mesa 7i33 > > board for signal conditioning. > > > > Has this new code made its way into a release yet? I'm going to check > > out the CVS EMC2 version and have a look in there right now. None of the > > changelogs say anything about this code in a release, so I guess it > > hasn't been released yet. > > > > I'm going to try to make use of the code, so I may have some questions > > for the list! > > My stuff isn't there yet. I have been getting bogged down in a bunch > of "infrastructure" issues having to do with managing various FPGA > configurations. In addition, my first target is step generators. > > However, I believe the existing "hostmot5-8" configuration will meet > your needs. For some notes, see: > http://cvs.linuxcnc.org/cgi-bin/cvsweb.cgi/emc2/src/hal/drivers/m5i20/README.txt?rev=1.3 > > That config is not part of the version 2.1.4 release - you'll need to > get a CVS checkout to use it. It will be in 2.2.0 however. >
I've been having a look at the emc2-trunk source tree. Is your new stuff going in emc2-trunk/src/hal/drivers/mesa_5i2x? I think the hostmot5-8 configuration will be close to what I require for one of my boards (we're doing a simple 2 axis machine with one 5i20 then we'll move on to the 9 axis machine which requires 4 5i20 boards). Does the hostmot5-8 configuration bind 5i20 pins to particular servo/encoder functions? By that I means would hostmot5-8 fix, say, pin 25 to be a servo pwm direction output? Initially I need a configuration which has exactly two servo/encoder axes (12 pins in all), 31 logic inputs and 29 logic outputs. I think I need to write a new VHDL configuration for this setup. Would you agree? Seb ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
