https://devzone.nordicsemi.com/f/nordic-q-a/49035/gpio-pin-state-during-resetHi, What is the GPIO pin state during reset, and during startup ? I have seen that it is a high impedance floating input. How much is the value of this impedance? Can I guarantee to drive it at 0V during reset mode bu connecting a pull-down resistoren-USTelligent Community 13Tue, 02 Jul 2019 08:43:39 GMThttps://devzone.nordicsemi.com/thread/195873?ContentTypeID=1Tue, 02 Jul 2019 08:43:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ece97de4-1992-42f8-9fbd-3c92224ecfdeawneil<p>If it&#39;s resolved your issue, please verify the answer:</p> <p><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/1777._5F00_Verify_2D00_answer_2D00_nordic.png" /></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/195870?ContentTypeID=1Tue, 02 Jul 2019 08:41:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cf9e1815-fe01-48fe-83d1-da7d996be942Sahar<p>Thank you <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/195747?ContentTypeID=1Mon, 01 Jul 2019 16:10:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c182d31e-4eb7-4be8-a612-d1827023c435Sigurd[quote userid="78718" url="~/f/nordic-q-a/49035/gpio-pin-state-during-reset"]What is the GPIO pin state during reset, and during startup ? I have seen that it is a high impedance floating input[/quote] <p>Correct.</p> [quote userid="78718" url="~/f/nordic-q-a/49035/gpio-pin-state-during-reset"]How much is the value of this impedance? [/quote] <p>It&#39;s&nbsp;<span>&gt;&gt;1Mohm, see <a href="https://devzone.nordicsemi.com/f/nordic-q-a/47289/gpio-current-drive/187247#187247">this </a>and <a href="https://devzone.nordicsemi.com/f/nordic-q-a/44923/more-detailed-specification-of-saadc-input-impedance/178017#178017">this.</a></span></p><div style="clear:both;"></div>