Hello folks,

I'm so frustrated.  I can't find any pattern to why I can only get 3 PWM 
pins to work.  Particularly, when I try to send a PWM command to some pins 
using "bb.analogWrite" it crashes my BBB.  

Error Details:
"Failed to find device tree fragment."  

My Findings:
Through some experimentation I've found this:
8_13 - Error 
8_19 - WORKS
8_34 - Error
8_36 - Error
8_45 - Error
8_46 - Error
9_14 - WORKS
9_16 - Error
9_21 - Error
9_22 - WORKS
9_28 - Error
9_29 - Error
9_31 - Error
9_42 - Error

Can someone tell me exactly WHY each of these pins works or doesn't work? 
 I can't really find a pattern to this so I'm stumped.

Thank you,
Donovan

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