> > *OK, you have several options on how to implement this. First, look in > drivers/iio or drivers/staging/iio for example drivers that use SPI. If you > use the RT kernel, you will see latency of less than 1mS, but if this isn’t > good enough, then I recommend using the PRU to program the McSPI. For > examples of how to program the McSPI natively, look at Starterware for > example code. If you look on Github, the Starterware examples have been > ported to the PRU. * > *Regards,* > *John* >
I'd actually recommend using the PRUs *OR* /dev/mem/ + mmap() if you need anything better than 100-200ms. The RT kernels are pretty good at reducing latency from what I've seen, but they still are not "perfect". -- 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.
