Am Mittwoch, 2. Juli 2014 00:34:11 UTC+2 schrieb Sungjin Chun: > > "Can I pinmux in PRU?" The TRM says I have to be in privileged mode to > write pinmux register. >
You need to be in priviged mode to switch on the PRUSS (ie echo PRUSSDRV > /sys/devices/bone_capemgr.9/slots). Once the PRUSS is running, there's no kernel software between the PRU and the pinmux registers. So the answer is yes, the PRU can do pinmuxing in privileged or unprivileged user mode. Test the examples in libpruio to see this happen on your system - *button* configures an GPIO input pin with high resistor - *stepper* configures four output pins - *sos* unlocks the user LED3 to control this GPIO pin -- 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.
