On Thursday, November 9, 2017 at 2:00:37 PM UTC+1, Loïc Droz wrote: > > And I agree this a bad idea because it is a huge waste of computing power. > I have tried using the BBB built in PWM pin which, as far as I know, can be > configured to be a 50% duty cycle, stable clk signal by following this link > : ... But so far as I haven't been able to make it work because the files > mentioned there are not present in my kernel (Linux beaglebone > 4.4.91-ti-r133 #1 SMP Tue Oct 10 05:18:08 UTC 2017 armv7l GNU/Linux). I > would like to use that PWM though, is there a way to do it on the more > recent kernels ? >
I have no idea, I do not use the Hardware from within Linux but out of a bare metal firmware... > I could also do both operations on one PRU yes. However, since the audio > processing steps involve memory writes to the host, I am worried these > might not take deterministic time, which would prevent my clock my clock > from being stable. > >> >> There is some shared memory available where both, PRU and main core have access to. Since PRU has the priority for accessing this ram, you can use it for a ringbuffer with defined timing which also can be read from the main core. -- 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/140f7d45-e8e6-4561-a92f-c053d9bcd9da%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
