I suspect it's not background tasks, but just the overhead of getting from bonescript to the UART. There are a lot of places that might be causing the delay. Have you tried sending a single byte from a C program, to see if it's in the bonescript interpretation?
> On Dec 27, 2014, at 12:45 , [email protected] wrote: > > Hi > > I am running a node.js script that sends a "byte" to a UART TX pin every > 10ms. > > Looking at the pin with a logic analyser, I can see that the bone has a hard > time keeping up with the 10ms and I suspect that I have too many unnecessary > tasks/daemons running in the background. > > The logic analyser shows that 80% of the time, I get 10ms +-1 and 10% of the > time it periodically gets as bad as 20ms. > > What background stuff can I safely stop to run a node script? > > Thank you > > > > -- > 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. -- Rick Mann [email protected] -- 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.
