On Wed, Jun 05, 2002 at 11:01:41AM +0200, Miguel Saiz Arnedo wrote: > > Hello. > > I installed RTLinux on my AMDk6 430 MHZ with 128 Mb RAM and up to now I've just > been probing with the example programs. > I have tried the hello.c with various thread periods and observed that when I > try periods of less than 10us my system crashes. Is this a normal limit? Is it
The board chip controller introduces over 10us delays. You are past the hardware limit. Also "hello" wants to print in each thread using a quite slow process. > hardware limit or is it an RTLinux limit? > If I can't schedule periodic threads with less than 10us period that will mean > that if the thread is used to aquire samples from a DAQ board I will have a > 100KHz sampling rate limit, which I find a bit low for my needs.Is it possible > to achieve higher sampling rates with RTLinux? It may be possible, but not in this configuration. You could try a dual with reserve_cpu, but for right now, I'd get a DAQ board with a modest buffer. -- --------------------------------------------------------- Victor Yodaiken Finite State Machine Labs: The RTLinux Company. www.fsmlabs.com www.rtlinux.com -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/
