All of the gpio registers have dedicated set and clear registers so you don't have to do read-modify-write operations. There wont be an issue with collisions between separate gpio bits if you're just setting or reading pin states.
On Sunday, November 24, 2013 11:13:21 PM UTC-8, rod calabio wrote: > > I copy that Dave. Yes, need to use masks, multiple registers, xors, > ands, to toggle multiple bits quickly. I wonder how fast the mux switches > also. Yes, would need to look at all the interrupts and momentarily > turning some off when doing high speed gpio switching. I am making a 80 > way network switch using the bbb and fpga cpld. > > Rocketrod > -- 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. For more options, visit https://groups.google.com/groups/opt_out.
