Is there any reason for using the AINn files in /sys/devices/ocp.3/helper.15 rather than the in_voltageN_raw files in /sys/bus/iio/devices/iio:device0 ?
I.e. is there any (useful) processing done between the raw 12-bit integer value in the raw file and the integer 'millivolts' value in the AINn values? As far as I can see one just loses a bit or two of resolution by using the AINn values. The fact that it gives the input voltage in mV is pretty useless as one is never actually measuring the voltage at the input, it's almost bound to be scaled in some sort of fashion. So taking the AINn value and mutiplying it by some factor to give the required result is no different from multiplying the raw value by a different factor to give the same result (except the loss of some resolution). That is, of couse, unless some sort of processing (smoothing, time weighted average, etc.) is done between the raw value and the AINn value. -- Chris Green ยท -- 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.
