https://devzone.nordicsemi.com/f/nordic-q-a/18634/nrf51822-hardfaultHi Nordic Tech support team, Now, I burn my nrf51822 softdevice Bootloader and application by nRFgo Studio tool。There are some problems as follow： (1) When I burn softdevice firmware and I choice enable softdevice protection，When I burn applicationen-USTelligent Community 13Wed, 28 Dec 2016 12:43:39 GMThttps://devzone.nordicsemi.com/thread/71976?ContentTypeID=1Wed, 28 Dec 2016 12:43:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d2934756-1045-4743-9636-b56d7ce8175dPetter Myhre<p>On the nRF51, in normal mode (not debug), the reset pin will always be enabled. You don&#39;t have to do anything.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/71975?ContentTypeID=1Wed, 28 Dec 2016 12:24:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a992c9e2-b14d-44cd-8bbc-e1a85f78e35cMr.Li<p>Hi Petter Myhre ， If I want to support hard reset in normal mode，Has hard reset function supported by default in normal mode ? If I do anything and nrf51822 has supported hard reset function in normal mode ？ Thanks！</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/71974?ContentTypeID=1Wed, 28 Dec 2016 12:18:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3ae0b53f-3fb9-4104-82d7-6b632d262026Petter Myhre<p>When using the SoftDevice the power peripheral is restricted, as you can see <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s130.sds/dita/softdevices/s130/sd_resource_reqs/hw_block_interrupt_vector.html?cp=3_7_2_0_6_0">here</a>.</p> <p>NRF_POWER-&gt;RESET = 1 enables pin reset in debug interface mode, is this what you want to do? Or do you want to reset? Then you can use sd_nvic_SystemReset().</p><div style="clear:both;"></div>