Date: Fri, 31 Jul 1998 21:02:53 -0400 From: Robert Withrow <witr@rwwa.com> To: Craig Spannring <cts@internetcds.com> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Using FreeBSD for data acquisition? (long) Message-ID: <199808010102.VAA29841@spooky.rwwa.com>
next in thread | raw e-mail | index | archive | help
I manufacture a coordinate measuring machine that measures jet engine rotor and stator radii. I collects 16 bytes of data at 200 HZ when scanning. I havn't had any *major* problems, but it took some careful design. The motion control and all emergency condition processing is done in the kernel. The system doesn't (typically) do disk access when scanning, and all heavy computations are done when the system isn't moving or scanning. It does manage to maintain an X display with a 10 Hz update frequency. I've used proprietary RTOSes for projects like this in the past, and I prefer FreeBSD because of the source code access and the ability of readily ported data-reduction and display tools, etc... --------------------------------------------------------------------- Robert Withrow, R.W. Withrow Associates, Swampscott MA, witr@rwwa.COM To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199808010102.VAA29841>