> > *When I seperate each command by a delay, the rising edge of the clock > takes ~90ns to go from 0V to 3.3V. I was under the impression that this > operation would be performed at around ~5ns. I have attached the reading > from my oscilloscope. My question is, is what I am seeing normal or am I > doing something wrong?* >
What kind of a delay are you using ? But if this delay has to interact with an on chip timer of the L3 interconnect . . . it's going to take a lot longer than ~5NS. Which is what I would think you're finding out now, but I'm no expert . . . On Tue, Feb 16, 2016 at 2:08 PM, John M <[email protected]> wrote: > Hello All, > > I'm trying to create a clock using the PRU, and I have it working to an > extent, but I am noticing a discrepancy between what I read in the TRM and > what I'm seeing. When I use a series of SET CLR SET CLR commands on a pin, > they do not resolve completely before the next command. When I seperate > each command by a delay, the rising edge of the clock takes ~90ns to go > from 0V to 3.3V. I was under the impression that this operation would be > performed at around ~5ns. I have attached the reading from my oscilloscope. > My question is, is what I am seeing normal or am I doing something wrong? > > Thank you. > > > <https://lh3.googleusercontent.com/-HgSaQGizihc/VsOPr4eIEPI/AAAAAAAACwA/fJOdPU4KSlo/s1600/LeCroy.png> > > > -- > 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. > -- 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.
