I use BeagleboneBlack with Debian, kernel v3.15, and I want to implement an accurate timer on my BBB. I use clock_nanosleep() to wait for 1 second. However, it always turns to be 1 second and 100~120 microsecond delay. (I measured clock_nanosleep() between clock_gettime() and with oscilloscope.)
I also run linuxPTP (a software that adjusts system clock, CLOCK_REALTIME, to synchronize linux system with PTP.) to synchronize my BBB. I have no idea how to improve it, should I change linux to real-time linux? (Xenomai or RobertCNelson's patch for linux) or is there another way (such as software, codes, etc) to get more accuracy timer? (under 1us delay.) Thanks! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
