On 12/22/2013 4:51 PM, Bas Laarhoven wrote: > On 22-12-2013 22:54, Bas de Bruijn wrote: > >> [...] >> linuxcnc@arm:~$ cat `find /sys/devices/ -name in_voltage[456]_raw` >> 1331 >> 4070 >> 3585 > > These values are completely wrong. It looks like the numbering of the analog > inputs is mixed up. J8 should corresponding to input 4, J7 to input 5 > and J6 to input 6. > You are getting the result of J8 on input 5. > > The fact that you are seeing the J8 signal on input 5 instead of on > input 4 indicates > you're using the BeBoPr pin assignments instead of the Bridged BeBoPr > assignments. > The other two inputs (J6 & J7) then go to adc inputs 1 and 3, you might > be able to > verify this by changing the 456 to 135 !
Which version of BeBoPr do you have? You have to load the device tree overlay that matches your board. Note that only physical hardware can move the ADC inputs around, so it looks like you might have the original BeBoPr board designed for the BeagleBone White and is the *ONLY* board you use with the BB-LCNC-BEBOPR-00A0 overlay file. All other BeBoPr boards, including: * The original BeBoPr board when used with a bridge board set * The BeBoPr+ * The BeBoPr++ use the BB-LCNC-BEBOPRBR-00A0 overlay. -- Charles Steinkuehler char...@steinkuehler.net
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