The AM335x CPU has three PWM subsystems, each one containing an eQEP module. So three rotary encoders are supported by the hardware (speed and direction/position @ 100 MHz counters).
In order to measure speed only (no direction/speed) you can use the eCAP modules in two of that subsystems (the third one isn't wired to any header pin). Or you can use one of the four TIMER subsystems (24 MHz counters). If you need a fourth direction/position sensor, there's a PRU firmeware in the BBBlue package. -- 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/869c82a2-1f63-4c83-89af-fffbc91a9f83%40googlegroups.com.
