https://devzone.nordicsemi.com/f/nordic-q-a/64742/nordic-thingy-91-pin-nameThe nRF9160 is connected to the nRF52840 by MCU_IF0 ~7(GPIOs) in the Nordic Thingy:91. and I know to uses UART communication between the nRF52840 and the nRF9160. Can I know the assigned pin name (UART) for each pin ( MCU_IF0 ~7) ?en-USTelligent Community 13Wed, 12 Aug 2020 10:39:44 GMThttps://devzone.nordicsemi.com/thread/264224?ContentTypeID=1Wed, 12 Aug 2020 10:39:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:37487aa4-fd42-4aa3-91b9-322daf40864cH&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>Those GPIOs (MCU_IFx) are connected to each respective GPIO, which is described in the documentation here:</p> <p><a href="https://infocenter.nordicsemi.com/topic/ug_thingy91/UG/thingy91/hw_description/pin_maps.html?cp=12_0_5_4">https://infocenter.nordicsemi.com/topic/ug_thingy91/UG/thingy91/hw_description/pin_maps.html?cp=12_0_5_4</a></p> <p>&nbsp;</p> <p>The default pin routing (and usage, if enabled) can be seen from the device tree files for targets thingy91_nrf9160 and thingy91_nrf52840:</p> <p><a href="https://github.com/nrfconnect/sdk-nrf/blob/master/boards/arm/thingy91_nrf9160/thingy91_nrf9160_common.dts#L165-L182">https://github.com/nrfconnect/sdk-nrf/blob/master/boards/arm/thingy91_nrf9160/thingy91_nrf9160_common.dts#L165-L182</a></p> <p><a href="https://github.com/nrfconnect/sdk-nrf/blob/master/boards/arm/thingy91_nrf52840/thingy91_nrf52840.dts#L38-L55">https://github.com/nrfconnect/sdk-nrf/blob/master/boards/arm/thingy91_nrf52840/thingy91_nrf52840.dts#L38-L55</a></p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>