Hai,
i want related information about RTOS whether any website is their to
know the complete information
about RTOS in detail with atleast any one project based on RTOS
Be advised that for an 8088 thru Pentium type CPU, a truly RTOS is
impossible; the memory refresh and timer tick are tied to a *non*
maskable interrupt.
That means that timing is ranDUMB because that "burp" tick is ranDUMB
relative to any program that can be written.
Oh yes, the more modern variants have a rather nice added instruction
FRDTSC that gives cpu clock cycles since startup.
So use FRDTSC to get the count and save it, then CALL some routine,
then use FRDTSC again to get the new count and use the difference.
Convert to seconds if you know the "exact" frequency the CPU is
running at.
Yawn.
RanDUMBly the "burp" tick will mess with that time difference; the
longer the routine takes, the more probable that the "burp" will be
caught, until if it is really long, many "burps" will happen and perhaps
if the routine is long enough, one may know (within one "burp") how
many happen.
One cannot directly generate music as syncopated as a person can, due
to that ranDUMB re-direction of critical timing routines.
Moral?
Use *any* other CPU than the X86/X88 family!
