Ok the power not shutting off was done for a reason. I can live with that and 
it even makes sense. 

actually i would be happy to send in a board. who ever wrote the program for it 
(i am assuming the program would be part of EMC2 from then on so that anyone 
could just plug in the board and run it without going through a lot of linux 
gyrations) but if i am going to send someone a board or even a couple of 
them, that i will never see again, i would probably want more than "a driver 
will probably get written"  the boards I have in mind are the ADlink PCI-7296 ( 
I have one sitting on the shelf. ) and maybe the Sealevel PCI 24 Channel TTL 
Digital Interface card.   





________________________________
From: John Kasunich <[email protected]>
To: Enhanced Machine Controller (EMC) <[email protected]>
Sent: Sat, December 19, 2009 9:34:40 AM
Subject: Re: [Emc-users] needed things (imho)

mike walker wrote:
> Issue One.  On both of the boxes I am using there is a common problem. I tell
> it to shut down and it hangs on the last screen untill i hit the power switch.

The power management drivers that let your computer automatically shut
off its own power tend to conflict with realtime code.  So they are not
part of the realtime kernel that we distribute with EMC.  Turning off
the computer manually is no big deal.  Especially since any real machine
will probably have other power supplies for things like the motors.  On
my machine I have a single disconnect switch that turns off all the power.

> Issue two. And to me much bigger. EMC2 basicly supports 6 I/O boards out
> of the box. Personaly I do not want to spend a thousand bucks buying boards,
> daughter boards, and softwhere to see if i can control a piece of machinery.
> If i was doing it to sell comercialy that is one thing. but for what I do
> in my garage, not so much. what i need is a PCI I/O board with at least 24
> and preferibly 48 I/O points that i can wire to a opto isolator (if i think
> i need it) or directly to a ttl level switch if i think i do not. 

EMC supports several different I/O boards "out of the box".  It also
supports the standard PC parallel port (or several of them).  Buy a few
cheap PCI parallel port boards and install them if you need an
inexpensive way to get started with simple I/O.

The lack of an I/O card that does what you want is not EMC's fault.
Hardware costs money, both to design and to manufacture.  Hardware
companies will only offer products if there is demand and money to be
made, and the volunteers who write the EMC software can do nothing about
that.

If you find a card that gives you the I/O you want, but EMC doesn't
support it, you might want to contact the EMC developers, ask nicely,
and offer a board with documentation.  If the board isn't extremely
difficult to program, a driver will probably get written.  But the board
needs to come first.

Regards,

John Kasunich




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