From: thor F. <tho...@ya...> - 2011-11-06 16:52:53
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Hi all. I recently started dabbling with the ADC stuff on my Overo Air and a Tobi board. I installed the latest kernel/software from Steve Sakoman's site (thanks!): Gnome -r13. I can apply a voltage to ADCIN2 and ADCIN7 and get expected readings from sysfs files (/sys/class/hwmon/hwmon0/device/in?_input). When I apply a voltage (or ground) to ADCIN3-6 the value is the 70-90 milivolt float that is seen on ADCIN2 (ADCIN7 floats to 1.4v). Way back (kernel 2.6.34?) there was a bug that Steve had a patch for (setting the clocks correctly), but I thought that was merged and pushed upstream 2 years ago. Is there some way to determine if the clock settings are wrong? Or reason out why I can't read 66% of the ADC channels brought out to the 40-pin header? tks! |