Thanks, Andy!  That did indeed reveal the pins we need.  I think pncconf
has a problem with the 2x7i76, but my student should be able to proceed
now.

I tried the same "show pin" on my BSPI configuration, but alas, no bspis show
up.  So the bspi support in hostmot2.c must have some difficulties.

halcmd: loadrt probe_parport
halcmd: loadrt hostmot2
halcmd: loadrt hm2_7i43 config="firmware=hm2/7i43-4/SVSTSPI4_6.BIT num_bspis=1 "
halcmd: show pin

Dmesg shows the seven BSPI pins, but show pin does not.

Sorry to infect one thread with another :-).  I've got way too many simultaneous
LinuxCNC projects going on right now...

Thanks again,
-- Ralph
________________________________________
From: andy pugh [[email protected]]
Sent: Monday, July 28, 2014 2:08 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] question on 5i25+(2)7i76

On 28 July 2014 21:46, Ralph Stirling <[email protected]> wrote:

> We are perfectly happy to hand edit the hal file, but do not know
> the syntax for specifying the second 7i76.  Random (educated)
> guesses have not been successful.

I think that if you have 5i25.0.7i76.0.0.gpio.NN then the second 7i76
will be 5i25.0.7i76.1.0.gpio.NN

You shouldn't actually need to do anything to see the GPIO on the
second 7i76. As long as there is Field Power, it will self-declare to
the driver

halrun
loadrt hostmot2
loadrt hm2_pci
show pin

Will give you a dump of all the default pins,and should include both 7i76s.

You might like to use the use_serial_numbers option to disambiguate the cards.
(Which seems to be undocumented, even though I remember documenting
it, and the code is there)
http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blob;f=src/hal/drivers/mesa-hostmot2/hostmot2.c;h=94168e1e00f4c65eef09754ef415ffc0c0e814f0;hb=refs/heads/2.6#l56




--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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