Re: [Emc-users] Questions about Mesa cards

[Leonardo M. <ldm...@gm...>]

Hi Peter,

Yes, its possible to make "A" only encoders channels on a 7I89/FPGA card
> set, what 7I80DB do you have and what other I/O is needed?


My idea is the following:

7i80DB25 ---------> 7i89
                ----------> 7i85s
                ----------> 7i74  ---------> 7i70
                                       --------->  7i72

Is this configuration ok?



El lun, 10 nov 2025 a las 11:59, Peter Wallace (<pc...@me...>) escribió:

> On Mon, 10 Nov 2025, Leonardo Marsaglia wrote:
>
> > Date: Mon, 10 Nov 2025 09:11:26 -0300
> > From: Leonardo Marsaglia <ldm...@gm...>
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >     <emc...@li...>
> > To: "Enhanced Machine Controller (EMC)" <emc...@li...
> >
> > Subject: [Emc-users] Questions about Mesa cards
> >
> > Hi guys, I hope you are doing well
> >
> > I have a short question to define a setup
> >
> > For the 7i89, a while ago PCW told me that it could be possible to make a
> > counter mode only firmware and use only the A channel encoder input
> since I
> > only want to sense frequency and not direction. This way I can have 24
> > frequency counters in one board. Is this easily done via firmware
> > editing/upgrade?
> >
> > Thanks a lot for your help
> >
> > _______________________________________________
> > Emc-users mailing list
> > Emc...@li...
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
> Yes, its possible to make "A" only encoders channels on a 7I89/FPGA card
> set, what 7I80DB do you have and what other I/O is needed?
>
> Peter Wallace
> Mesa Electronics
>
>
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