https://community.nxp.com/t5/i-MX-Processors/iMX8M-Plus-SW1-ON-OFF-Button/m-p/2387075#M245788 <P><FONT color="#000000">Hi,</FONT><BR /><BR /></P><P><FONT color="#000000">We are working on the iMX8M Plus EVK,In that we observed that holding SW1 for about 5 seconds powers off the EVK, and pressing it for about 1 second powers it on again. Please confirm whether this behavior is handled by hardware/PMIC or by software.</FONT></P><P><FONT color="#000000">Also, when SW3 is moved to the ON position, the board powers on automatically without pressing SW1. Please confirm whether this is the expected default behavior of the i.MX8M Plus EVK.</FONT></P> Fri, 26 Jun 2026 13:45:51 GMT Govind1807 2026-06-26T13:45:51Z https://community.nxp.com/t5/i-MX-Processors/iMX8M-Plus-SW1-ON-OFF-Button/m-p/2387075#M245788 <P><FONT color="#000000">Hi,</FONT><BR /><BR /></P><P><FONT color="#000000">We are working on the iMX8M Plus EVK,In that we observed that holding SW1 for about 5 seconds powers off the EVK, and pressing it for about 1 second powers it on again. Please confirm whether this behavior is handled by hardware/PMIC or by software.</FONT></P><P><FONT color="#000000">Also, when SW3 is moved to the ON position, the board powers on automatically without pressing SW1. Please confirm whether this is the expected default behavior of the i.MX8M Plus EVK.</FONT></P> Fri, 26 Jun 2026 13:45:51 GMT https://community.nxp.com/t5/i-MX-Processors/iMX8M-Plus-SW1-ON-OFF-Button/m-p/2387075#M245788 Govind1807 2026-06-26T13:45:51Z https://community.nxp.com/t5/i-MX-Processors/iMX8M-Plus-SW1-ON-OFF-Button/m-p/2387252#M245793 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/261474">@Govind1807</a>,<BR />Thank you for contacting NXP Support.<BR /><BR />This behavior is related to an internal FSM implemented within the processor.&nbsp;</P> <P>For a better understanding, I have attached the corresponding block diagram that illustrates the FSM behavior and its state transitions.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Chavira_0-1782509945998.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/390472i910540BA1D0844FE/image-size/medium?v=v2&amp;px=400" role="button" title="Chavira_0-1782509945998.png" alt="Chavira_0-1782509945998.png" /></span></P> <P>&nbsp;</P> <P><BR />Best regards,<BR />Chavira</P> Fri, 26 Jun 2026 21:39:14 GMT https://community.nxp.com/t5/i-MX-Processors/iMX8M-Plus-SW1-ON-OFF-Button/m-p/2387252#M245793 Chavira 2026-06-26T21:39:14Z