Kernel module timers are in the eCAP modules in the PWMSS subsystems. Three modules are present, but only two are wired to the big headers, the third is at JT or SDcard-slot (32 bit counters at 100 MHz --> maximal toggling time stamp = 42,9s).
Additional the TIMER[4-7] subsystems provide that feature (32 bit counters with divider at 24 MHz --> maximal toggling time stamp = 45812984s). Find details and example code at http://users.freebasic-portal.de/tjf/Projekte/libpruio/doc/html/ChaPins.html#sSecTimer But as long as you synchronise both systems by an LINUX app, you'll face latency in a nano or even milli second range. More accurate is the PRU-firmware I mentioned above, synchronised by a wired GPIO signal. -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/49bfa6b2-567b-4fb4-9812-d3b12e4310c0%40googlegroups.com.
