https://devzone.nordicsemi.com/f/nordic-q-a/89935/nrf52832-activate-p0-21-gpio-in-dfu-modeHello SDK17.0.02 softdevice : s112 tool : segger embedded studio DFU is under development. Updating with DFU works normally, but some functions do not work. The problem is P0.21. P0.21 is connected to CS Pin of SPI. The CONFIG_GPIO_AS_PINRESETen-USTelligent Community 13Thu, 14 Jul 2022 01:50:07 GMThttps://devzone.nordicsemi.com/thread/376860?ContentTypeID=1Thu, 14 Jul 2022 01:50:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:af525f22-95ad-4e50-a1f7-fb91ab66d927cabin<p>[Solved] CONFIG_GPIO_AS_PINRESET is also defined in bootloader</p><div style="clear:both;"></div>