On 06/29/15 03:46, Daniel Bolgheroni wrote: > On Wed, Jun 24, 2015 at 05:26:10PM +0200, Piotr Kubaj wrote: >> Hi all, >> >> I'm mainly a FreeBSD user but want to learn OpenBSD. I'm also interested >> in basic electronics, like programming own thermometer. That's why I >> want to install OpenBSD on my BeagleBone Black and write some simple >> programs using I/O pins. Are there any tutorials on this? I have found >> some books about FreeBSD kernel programming, but none for OpenBSD. >> Thanks for your help. > > I have a simple example to blink a LED connected to the GPIO here: > > https://github.com/dbolgheroni/bghbox/blob/master/gpio_blink/gpio_blink.c > > Most of it I extracted from the OpenBSD gpioctl itself. It's all there. > > Cheers, > Hi again,
at first I was not sure that I had connected it properly, since neither you program nor gpioctl(1) seemed to work. Then I tried Debian, with which I also couldn't get GPIO to work (using /proc/sys/class/gpio). But using the library descriped in https://learn.adafruit.com/setting-up-io-python-library-on-beaglebone-black/g pio and the example program seemed to work (of course after switching to pin 10). Can you tell me what is the correct way to access GPIO pins on OpenBSD? I did: gpioctl gpio1 6 2 Later I also set flag: gpioctl gpio1 6 set out But changing states still didn't work. Thanks, for your help, Piotr Kubaj. [demime 1.01d removed an attachment of type application/pgp-signature which had a name of signature.asc]
