On 11/14/19 1:03 PM, Sebastian Kuzminsky wrote:
On 11/14/19 12:35 PM, Moses McKnight wrote:
My vote would be to only support 64-bit going forward. Distributions are
starting to discontinue 32-bit editions as well, and the hardware that is
32-bit only is pretty rare for anything new. For instance, the board in the
link you sent is "available for special order only until factory stock is
depleted".
On 11/14/19 10:27 AM, andy pugh wrote:
On Thu, 14 Nov 2019 at 16:21, andy pugh <[email protected]> wrote:
I suspect that it will not be missed?
Though it seems that it is still possible to by 32-bit only
motherboards, such as https://www.mini-itx.com/~JNC9KDL-2550
(And I don't know how well those work with preempt-rt)
I'm not doing any of the work, so feel free to ignore my advise.
I believe the only reason for LinuxCNC to support RTAI these days is for people
who use software/parport steppers, and who want to upgrade the software on old
existing CNC machines that don't work well enough with preempt-rt.
Everyone else (ie, people with Mesa boards, people building new CNC machines,
and people upgrading the computer on old CNC machines) probably shouldn't use
RTAI. They should instead just pick 64-bit hardware that works well with
preempt-rt, and use a Mesa board if preempt-rt can't do software stepping on
their hardware.
As far as I know this is the only use case for RTAI. This means 32-bit RTAI
support is important, to support crufty old 32-bit hardware.
That is a very good point. +1
--
And as it is appointed unto men once to die, but after this the judgment:
So Christ was once offered to bear the sins of many; and unto them that look
for him shall he appear the second time without sin unto salvation.
(Hebrews 9:27-28)
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