GPIO pin mapping issue in nRF52840 PDK

RE: GPIO pin mapping issue in nRF52840 PDK

Labuka — Wed, 21 Feb 2018 14:09:37 GMT

Thanks for the reply. It's working now, I've changed it to read it from another pin 🙂

RE: GPIO pin mapping issue in nRF52840 PDK

Jørgen Holmefjord — Wed, 21 Feb 2018 13:24:50 GMT

GPIO P0.10 is by default used for the NFCT antenna interface. Have you configured the symbol CONFIG_NFCT_PINS_AS_GPIOS is your application? Note that the GPIO is not connected to pin header, you will have to desolder and resolder resistor R46 to R45 pad.

RE: GPIO pin mapping issue in nRF52840 PDK

Labuka — Wed, 21 Feb 2018 11:25:06 GMT

The code is compiling and I have burnt the code. I'm reading only zero wherein the output should be one. I rechecked the sensor in Arduino, the sensor works fine. By default, the sensor outputs one and so the LED should light up and when there is a magnet nearby it outputs zero and LED should be off. I'm just wondering whether my pin mapping is wrong in the code.

RE: GPIO pin mapping issue in nRF52840 PDK

Jørgen Holmefjord — Wed, 21 Feb 2018 11:22:26 GMT

What is the issue? Is the code not compiling, are you reading wrong value, etc.? It is hard to help you with a solution to a problem you have not described properly.