AnsweredAssumed Answered

ENC (encoder) setting phase inputs with pullup on rt1050?

Question asked by Jack King on Aug 4, 2018
Latest reply on Aug 5, 2018 by igorpadykov

I am trying to use inputs GPIO_B0_12 and GPIO_B0_13 as phase inputs to the ENC peripheral.


In the SDK samples the phase pins have pull-down set, but I am trying to use an encoder with common to GND, so I need pull-up enabled.  In the PIN CONFIG tool I have set pull-up for those pins, and I also tried using an external 10k pull-up resistor, but regardless it seems those pins have pull-down enabled.


Even just scoping the pin directly and using GPIO, I don't see the input pulled up...  On other pins I have successfully set pull-up, but GPIO_B0 pins seem to all be pulled down.


Here is my pin setup:

pin config

Any help appreciated!