Hi Mark. Great, thanks! Per my understanding, the Device Tree approach of https://elinux.org/EBC_Exercise_17_Switching_a_GPIO_to_an_LED doesn't include modifying user_leds_s0 (pinmux for user leds). Do you know why isn't this needed?
Best Regards, Pedro Bertoleti Em terça-feira, 1 de setembro de 2020 às 16:47:15 UTC-3, Mark A. Yoder escreveu: > Your steps look right, but there is a simpler way to do them. Check out: > https://elinux.org/EBC_Exercise_17_Switching_a_GPIO_to_an_LED > > No need to cross compile etc. > > --Mark > > On Tuesday, September 1, 2020 at 10:36:13 AM UTC-4 TJF wrote: > >> Hi! >> >> Forget about all that device tree trouble, use libpruio >> <http://users.freebasic-portal.de/tjf/Projekte/libpruio/doc/html/index.html> >> instead. You can configure the pin and set the desired output state by a >> single function call in your programm running at user space (no sudo >> commands, no rebooting, ...) >> >> gpio_setValue(Io, P9_15, 1) // configure and set high >>> >> gpio_setValue(Io, P9_15, 0) // set low >>> >> >> You'll have faster boot, less memory consumption, and your code executes >> much faster (compared with sysfs GPIO control). >> >> You may want to check out some examples >> <http://users.freebasic-portal.de/tjf/Projekte/libpruio/doc/html/ChaExamples.html> >> . >> >> Regards >> > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/893a6501-2201-47ff-8f8b-fe0665243410n%40googlegroups.com.
