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.
--
Sebastian Kuzminsky
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