https://community.nxp.com/t5/S32K/How-to-detect-PMC-LVR-reset/m-p/1785893#M30467 <P>hi,<BR />According to the reference manual, PMC will trigger an LVR event after detecting an under-voltage condition in the monitored power supply and initiate a reset by default.<BR />Furthermore, the LVR event will be combined with the POR event into a single POR event.<BR /><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Pusoy_0-1704874462313.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/257493i94338666CC3E7E99/image-size/large?v=v2&amp;px=999" role="button" title="Pusoy_0-1704874462313.png" alt="Pusoy_0-1704874462313.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Pusoy_1-1704875201935.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/257499i9B1C9008B91D0031/image-size/large?v=v2&amp;px=999" role="button" title="Pusoy_1-1704875201935.png" alt="Pusoy_1-1704875201935.png" /></span></P><P>&nbsp;</P><P>Supposing that the previous reset was caused by an LVR event:<BR />1. When invoking the function Mcu_GetResetReason(), will it return MCU_POWER_ON_RESET?<BR />2. If MCU_POWER_ON_RESET is returned, does the SW32K3_RTD_4.4_2.0.1 provide a method to identify which voltage source anomaly caused the reset?</P> Wed, 10 Jan 2024 08:28:20 GMT Pusoy 2024-01-10T08:28:20Z https://community.nxp.com/t5/S32K/How-to-detect-PMC-LVR-reset/m-p/1785893#M30467 <P>hi,<BR />According to the reference manual, PMC will trigger an LVR event after detecting an under-voltage condition in the monitored power supply and initiate a reset by default.<BR />Furthermore, the LVR event will be combined with the POR event into a single POR event.<BR /><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Pusoy_0-1704874462313.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/257493i94338666CC3E7E99/image-size/large?v=v2&amp;px=999" role="button" title="Pusoy_0-1704874462313.png" alt="Pusoy_0-1704874462313.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Pusoy_1-1704875201935.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/257499i9B1C9008B91D0031/image-size/large?v=v2&amp;px=999" role="button" title="Pusoy_1-1704875201935.png" alt="Pusoy_1-1704875201935.png" /></span></P><P>&nbsp;</P><P>Supposing that the previous reset was caused by an LVR event:<BR />1. When invoking the function Mcu_GetResetReason(), will it return MCU_POWER_ON_RESET?<BR />2. If MCU_POWER_ON_RESET is returned, does the SW32K3_RTD_4.4_2.0.1 provide a method to identify which voltage source anomaly caused the reset?</P> Wed, 10 Jan 2024 08:28:20 GMT https://community.nxp.com/t5/S32K/How-to-detect-PMC-LVR-reset/m-p/1785893#M30467 Pusoy 2024-01-10T08:28:20Z https://community.nxp.com/t5/S32K/How-to-detect-PMC-LVR-reset/m-p/1787920#M30585 <P>Hi <a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/226171">@Pusoy</a>,</P> <P>1. Yes, any of the below LVR sources set DES[F_POR] which is read is MCU_POWER_ON_RESET in Mcu_GetResetReason().</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="danielmartynek_0-1705052266246.png" style="width: 918px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/257970iA69CF209131578BC/image-dimensions/918x435?v=v2" width="918" height="435" role="button" title="danielmartynek_0-1705052266246.png" alt="danielmartynek_0-1705052266246.png" /></span></P> <P>&nbsp;</P> <P>2. There is no RTD API that would return PMC_LVSC.</P> <P>&nbsp;</P> <P>Regards,</P> <P>Daniel</P> Fri, 12 Jan 2024 09:41:41 GMT https://community.nxp.com/t5/S32K/How-to-detect-PMC-LVR-reset/m-p/1787920#M30585 danielmartynek 2024-01-12T09:41:41Z