Hi, How come in my system, there is no /sys/bus/iio/devices/iio:device0? Under /sys/bus/iio/devices/, there is only one file iio_sysfs_trigger, which is a symbolic link to some other directory. Is there any configuration I need to do? I am using the latest BB black Rev C by Element14. It is OS is 3.8.13-bone47.
Thx. On Wednesday, February 25, 2015 at 8:36:18 PM UTC+8, mala...@elisanet.fi wrote: > > Thanks for the suggestion. I'll keep that in mind if I need higher > sampling rates. However, I did find a way to read ADC through IIO so that > it doesn't hang. > > First set up the channels and the buffer through sysfs: > > echo 1 > /sys/bus/iio/devices/iio\:device0/scan_elements/in_voltage0_en > echo 256 > /sys/bus/iio/devices/iio\:device0/buffer/length > echo 1 > /sys/bus/iio/devices/iio\:device0/buffer/enable > > and then read from /dev/iio:device0. This way I can achieve about 8 kHz > sampling rate with a single channel, 4 kHz with two channels and down to > ~300 Hz with all eight channels. > -- 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/d/optout.
