Re: Mac & EMC
Posted by
Jon Elson
on 2000-04-24 09:19:31 UTC
Armilite@... wrote:
drive you
nuts. But, you need the real-time extensions to the Linux kernel. As
far as I know,
currently, only the x86 architecture is supported with RT extensions.
there was serious
talk about making RT a permanent kernel option, which kind of implies it
would become
generic on all platforms.
have it built.
The download file, with all source, is a little over 3 MB. It probably
expands to
6-7 MB source. The executable is pretty small, but the TkTcl GUI and
its associated
script files take up some room. On a Pentium system, EMC will run
nicely in as little
as 16 Mb (entire machine's memory), but 32 Mb is a good thing to have,
so that the
X system doesn't run short. I can edit programs, have network support
up, and have
no trouble at all.
Xwindows
environment runs just fine, etc. while the servo system is being updated
at a 1000 Hz
rate. So, a 133 MHz Pentium is absolutely fine for servos.
Matt Shaver and I are working on a parallel-port I/O system for EMC. It
will support a flexible group of quad 16-bit DACs, quad channel encoder
counters and opto-isolated digital input and output boards. Initially,
we intend
to use this on the PC, with EPP (Enhanced Parallel Port) support
available on
most motherboards. I don't know what the Mac hardware and software
support
of the parallel port looks like, but our same hardware should be able to
work
on the Mac - with suitable development.
Jon
> Programers:ftp://ftp.isd.mel.nist.gov/pub/emc/emcsoft/
>
> #1 Where do I go to download EMC?
> #2 Is it possible to compile the EMC program for a Mac and use MacMaybe. Compiling is not the problem, although library differences might
> Linux?
drive you
nuts. But, you need the real-time extensions to the Linux kernel. As
far as I know,
currently, only the x86 architecture is supported with RT extensions.
there was serious
talk about making RT a permanent kernel option, which kind of implies it
would become
generic on all platforms.
> #3 Does anyone know of any company who makes a Mac controll forA fair bit to compile, but you can kill most of the source code once you
> steppers/servos?
>
> #4 How much Hard drive space and memory does EMC require?
have it built.
The download file, with all source, is a little over 3 MB. It probably
expands to
6-7 MB source. The executable is pretty small, but the TkTcl GUI and
its associated
script files take up some room. On a Pentium system, EMC will run
nicely in as little
as 16 Mb (entire machine's memory), but 32 Mb is a good thing to have,
so that the
X system doesn't run short. I can edit programs, have network support
up, and have
no trouble at all.
> #5 Would a Pentium 133 MHz be ok with EMC?I'm using a 100 MHz Pentium on a servo system with no problems. The
Xwindows
environment runs just fine, etc. while the servo system is being updated
at a 1000 Hz
rate. So, a 133 MHz Pentium is absolutely fine for servos.
Matt Shaver and I are working on a parallel-port I/O system for EMC. It
will support a flexible group of quad 16-bit DACs, quad channel encoder
counters and opto-isolated digital input and output boards. Initially,
we intend
to use this on the PC, with EPP (Enhanced Parallel Port) support
available on
most motherboards. I don't know what the Mac hardware and software
support
of the parallel port looks like, but our same hardware should be able to
work
on the Mac - with suitable development.
Jon