OpenEuphoria

RE: Multiple loops interrupt each other :(

• Posted by "Weichel" <steen.weichel at deepspace.dk> Jan 13, 2004
• 379 views

I am trying to merge bit patterns for the parallel port data segment that is
the 8 data out registers.

I have one stepper running one the four first bits, the other on the next
four bits.
Of course writing only to set a bit state for only one of the motors, will
also set the bits of the other motor.
So i have to merge the bit patterns into one bit pattern output for the port
which provides the required state for both motors.

I think I will try to make three seperate programs: one for each motor and
then a third that will take data from the two motor programs and only do the
writing
to the port of the assembled bit pattern. A bit like Kat is suggesting.

Any comments? and thanks for the advice.

Steen Weichel

-----Original Message-----
From: Matt Lewis [mailto:matthewwalkerlewis at yahoo.com]
Sent: 13. januar 2004 12:28
To: EUforum at topica.com
Subject: RE: Multiple loops interrupt each other :(






> From: Kat
> On 12 Jan 2004, at 22:59, I Mullins wrote:
>
> >
> > Weichel wrote:
> > >
> > >
> > > Hello list,
> > >
> > > I have a couple of loops that I want to run in parallel
> > > but, when I start number two the first stops and vise versa.
> > > When I stop number two number one will continue.
> > >
> > > Each loop are in a procedure for itself and I am using the IDE
> > > to develop the program.
> >
> > Short answer: you can't.
> > Euphoria does not have threads.
> >
> > You might be able to write some tricky code which might appear to
> > operate in parallel, but it would be: 1. tricky, and 2. not
> > actual parallel processing.
>
> Two ways you can do this, and both means two separate programs:
>
> 1) use dde, socks, or ipc to link two apps
> 2) use the windows server in the archives, it's like win3.1
> in written Eu!

Here's another: use timers instead of loops.  You're using the IDE, so I
assume you're running under Windows.  Set a couple of timers, and run
one iteration of the loop for each time the timer fires.  The other
question I would ask is, what are you trying to do in the two loops?
Maybe there's a different (better?) way to do it.

Matt Lewis



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