3 Replies Latest reply on Aug 9, 2017 2:48 PM by e.pratt_1639216

    Using GPIO pin as a one bit control register


      I have noticed that a pin configured as output with hardware connection, strong drive, can be driven from the hardware and read by the firmware, which I think could be used as a one bit status register.  


      I wonder if something similar can be done for a 1-bit control register.    Is the digital side aware of the status of an output pin updated by the firmware?  Would it work configuring the pin as bidirectional, with only the input connected to hardware, and use it from the firmware as output, strong drive?