https://devzone.nordicsemi.com/f/nordic-q-a/9727/pad-assignmentI&#39;ve been going back and forth with my manager, and I need source to show whether I&#39;m right or wrong about a specific possible functionality of the nRF51. I was wondering whether you can change the pad assignment. For example, can I set pad A7 thaten-USTelligent Community 13Thu, 15 Oct 2015 17:44:02 GMThttps://devzone.nordicsemi.com/thread/36011?ContentTypeID=1Thu, 15 Oct 2015 17:44:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:47434ebc-c1ff-4c54-a28e-641f8c909c00Beau R.<p>thank you.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/36010?ContentTypeID=1Thu, 15 Oct 2015 06:07:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:563de132-c3f2-4931-85ec-602fce5fdfbdRK<p>You are correct. For I/O purposes, a given pad has a fixed gpio. There wouldn&#39;t be much point in allowing arbitrary gpio/pad muxing, if you want to use pin X then you write to the GPIO for X, if you change to pin Y, then you just fix your code to use the GPIO for Y. I can think of a couple of use cases for wanting arbitrary pin muxing, but they are pretty abstract.</p> <p>So indeed he probably is mixing up mapping the peripherals to given pins, which is possible and is very useful.</p> <p>Just reading the nRF51822 reference documentation shows the fixed GPIO/pad mapping, also showing the pins which are dual use (like the clock pins and the fixed ADC inputs). That&#39;s about as close as you can get to proving a negative.</p><div style="clear:both;"></div>