-users@lists.sourceforge.net
Subject: Re: [Emc-users] 7i43 or 5i20
Yes, but you can have the 7i43 or 5i20 perform the PID calculations. This
offloads the control update rates to the FPGA, and lessens the burden on
the parallel or PCI port. I am in the process of using a 7i43 for a
Bridgeport
On 24 October 2010 07:58, Andy Ibbotson andyi_w...@btinternet.com wrote:
Andy do you force the RT processes on to one core in your D510MO setup?
I think so, but it matters a lot less once you have offloaded the step
generation to external hardware. You don't need the 20,000 nS base
thread, you
Oct 2010 23:59:31 +0100
From: a...@andypugh.fsnet.co.uk
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] 7i43 or 5i20
On 23 October 2010 23:29, James Reed jsr...@hotmail.com wrote:
Yes, but you can have the 7i43 or 5i20 perform the PID calculations.
Are you sure?
--
atp
, the PID values entered in the FPGA appear to be the only ones that
matter. I'd have to revisit that to be sure.
Date: Sat, 23 Oct 2010 23:59:31 +0100
From: a...@andypugh.fsnet.co.uk
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] 7i43 or 5i20
On 23 October 2010 23:29, James
a...@andypugh.fsnet.co.uk
Sent: Friday, October 22, 2010 9:38 AM
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] 7i43 or 5i20
On 22 October 2010 06:41, Andy Ibbotson andyi_w...@btinternet.com wrote:
I am planning to move to MESA cards to drive my mill. AT present I'm
@lists.sourceforge.net
Subject: Re: [Emc-users] 7i43 or 5i20
On 22 October 2010 06:41, Andy Ibbotson andyi_w...@btinternet.com wrote:
I am planning to move to MESA cards to drive my mill. AT present I'm
trying to decide between the 7i43 (parallel) or the 5i20 (PCI). Platform
will be Intel D510MO
On 23 October 2010 13:58, Andy Ibbotson andyi_w...@btinternet.com wrote:
Thanks Andy. I thought that EMC2 required EPP mode on the parallel port
AFAIK only for devices that use it for communications, not for
applications which simply twiddle the pins on and off as individual
signals. I might
On 23 October 2010 14:37, Andy Ibbotson andyi_w...@btinternet.com wrote:
Andy
On your D510MO board have you tied the rt threads to one core? If so how did
you do this?
Currently I am running an out-of-the-box 10.04 liveCD installation.
I think that includes the islocpus=1 boot parameter in
Andy Ibbotson wrote:
Thanks Andy. I thought that EMC2 required EPP mode on the parallel port, I
think people are using the board to drive software stepgen.
EPP is ONLY needed for Pico Systems and Mesa products that use EPP as a
communications
path to a controller board. It definitely is NOT
Andy Pugh wrote:
Possibly. I have read somewhere that a sane (200uS) servo-thread
_execution_ period is only enough time to shift 50 bytes through a
parallel port. That is potentially limiting, but has not been a
problem I have noticed with my 4-axis machine. The software stepgens
running in
Thanks Andy and Jon, I'm beginning to understand.
Regards
Andy
--
From: Jon Elson el...@pico-systems.com
Sent: Saturday, October 23, 2010 7:14 PM
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] 7i43
is never easy :(
Regards
Andy
--
From: Jon Elson el...@pico-systems.com
Sent: Saturday, October 23, 2010 7:14 PM
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] 7i43 or 5i20
Andy Pugh wrote:
Possibly. I
.
From: andyi_w...@btinternet.com
To: emc-users@lists.sourceforge.net
Date: Sat, 23 Oct 2010 22:42:33 +0100
Subject: Re: [Emc-users] 7i43 or 5i20
Ok, so if I have this right:
Servo thread periods of 1000us - 2000us are fine for 3/4 axis mill cutting
steel / aluminium with rapids of say 120ipm
On 23 October 2010 23:29, James Reed jsr...@hotmail.com wrote:
Yes, but you can have the 7i43 or 5i20 perform the PID calculations.
Are you sure?
--
atp
--
Nokia and ATT present the 2010 Calling All Innovators-North
On 22 October 2010 06:41, Andy Ibbotson andyi_w...@btinternet.com wrote:
I am planning to move to MESA cards to drive my mill. AT present I'm trying
to decide between the 7i43 (parallel) or the 5i20 (PCI). Platform will be
Intel D510MO motherboard coupled with a 32Gb solid state disk.
It
Hi,
I am planning to move to MESA cards to drive my mill. AT present I'm trying to
decide between the 7i43 (parallel) or the 5i20 (PCI). Platform will be Intel
D510MO motherboard coupled with a 32Gb solid state disk.
Regards
Andy
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