On 1 May 2013 22:34, Florian Rist <[email protected]> wrote: >> 5i23 is cheaper. > > That's a 400k FPGA right? I recently stated some FPGA experiments on a > Xilinx dev. board. So I would have a lot of ideas for the FPGA on the > card, but will probably never find the time, so I guess I wont need 1.5 > M gates.
The 5i23 is "bigger" than the 5i20 and isn't much more expensive. I have a feeling that the 7i39 firmware might not even fit on a 5i20. (or it might be the Resolver firmware. There was some reason that the 5i23 made more sense for me) > I was not able to find much on where the FPGA code comes from. Is it the > MESA firmware or dose LinuxCNC load a dedicated firmware? There is a fork of the Mesa firmware included in LinuxCNC, but it seems to have fallen behind the Mesa version somewhat. The LinuxCNC version is easier to build on Linux, it is all makefile based, so may be useful for roll-your-own firmwares. The cards don't care, and you can use either the Mesa releases or the LinuxCNC versions. The LinuxCNC versions have the advantage of creating PNCConf-compatible XML files, but I think that Mesa have started doing that too, now. > Do you have any idea what might be a practical solution to integrate the > forth axis via some kind of radio link, WLAN at best? Not immediately. How are you getting power to that actuator? And if you can get power there, why not hard-wired control signals? The Mesa smart-serial protocol travels down CAT5 cable, it is just possible that a wireless repeater exists that could pass-through that data. I guess that any wireless protocol that can support 2.5Mbit serial could be pressed into service for the job. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with <2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
