Hello there, I am using this dts with an Adafruit 2.2 TFT SPI LCD screen: https://pastebin.com/vrUZ0Wde To drive backlit, pwm is used. My problem is that it is not inverted and BeagleBone Black pins cant give/ sink to much current, not enough for backlit. So in order to drive not inverted pwm i have to use 2 FETS (N driving P) instead of one P one:
<https://lh3.googleusercontent.com/-ml820OohPBI/VVyAfOQCmMI/AAAAAAAAAhw/DcKyKvfL2BM/s1600/fets.png> <https://lh3.googleusercontent.com/-ml820OohPBI/VVyAfOQCmMI/AAAAAAAAAhw/DcKyKvfL2BM/s1600/fets.png> BL - BeagleBone Black pin for backlit BL_P - LCD backlit pin If I could invert the pwm signal in the dts, then i could use BSS84P directly, without BSS123. I Would aprichiate all help in this matter! -- 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.
