On Thu, 4 Sep 2014, John Prentice (FS) wrote: > Date: Thu, 4 Sep 2014 22:44:13 +0100 > From: "John Prentice (FS)" <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "'Enhanced Machine Controller (EMC)'" <[email protected]> > Subject: Re: [Emc-users] Mixing BLDC and brushed motors > > Peter thank you > >> -----Original Message----- >> From: Peter C. Wallace [mailto:[email protected]] > >> Yes you can look at the 7i39 as 6 individual 1/2 bridges and drive 3 DC > motors from one 7i39. if a brushed motor was connected to half bridges A and > B, I _think_ >what is needed is to drive A with the PID output and B with > -PID output. > >> You can also dedicate one 1/2 bridge output as a 1/2 way up reference and > then run up to 5 small dc motors (1/2 voltage 1/5 current) from the other 5 > 1/2 bridges > > Ingenious - but it leaves one short on encoder interfacing. I will try the A > and B with ++Pid-out and --Pid-out >>> >>> >>> The ideal card for the brushed motor would be a 7i40. Would it be >>> practicable to have Hostmot2 firmware for both 7i39 and 7i40 co-exist >>> in the 5i20? If so does a BIT file exist with this combination. >>> >>> > > >> Not sure if theres a standard bitfile for that but its easy copy-paste a > pinout up and make one > > I have a spare 7i40 so I think I ought to learn how to do this - I see > resources on the web that will start me going. > > Is ISE Webpack 9.2 still your preferred version for 5i20 and 5i22 (Spartan > 2) boards? What OS would you run it on - I feel concerned that it is so old > that it will give trouble on my Win 8.1 (64 bit) system. I can run some > Linux flavour in a V-Box to provide any environment to best suit the app.
I think 10 is the latest that supports Spartan but 9.2 is my preferred version (before they broke the editor) > > Do you have a link to a document showing the "compile" workflow for your > firmware? A few years ago I have written standalone FPGA and CPLD code for > Xilinx - albeit in Verilog so hope not to prove a total nooby. > > TIA > > John Prentice > Yes Tom Light has a nice tutorial here: http://tom-itx.no-ip.biz:81/~webpage/emc/xilinx/xilinx14_install_index.php > > > ------------------------------------------------------------------------------ > Slashdot TV. > Video for Nerds. Stuff that matters. > http://tv.slashdot.org/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
