https://community.nxp.com/t5/MPC5xxx/Watchdog-Timer-and-FCCU-on-MPC5777c/m-p/1325327#M18914 <P>Hello,</P> <BLOCKQUOTE> <P>Should we configure FCCU while we configure Software Watchdog Timer to reset MCU (MCP577C) during a fault situation?</P> </BLOCKQUOTE> <P>I am bit confused. You are configuring SWT during fault situation? Do you mean SWT expiration Interrupt routine?</P> <BLOCKQUOTE> <P>Could we reset our controller MPC5777C without configuring FCCU?</P> </BLOCKQUOTE> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="petervlna_0-1629276143027.png" style="width: 604px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/153317iEEC1C141764020D8/image-dimensions/604x142?v=v2" width="604" height="142" role="button" title="petervlna_0-1629276143027.png" alt="petervlna_0-1629276143027.png" /></span></P> <P>As you can see from reference manual SWT is routed to FCCU, so no direct reset is routed to SIU module.</P> <P>In case you want SWT to reset device you have to configure FCCU to do it.</P> <P>Best regards,</P> <P>Peter</P> Wed, 18 Aug 2021 08:43:22 GMT petervlna 2021-08-18T08:43:22Z https://community.nxp.com/t5/MPC5xxx/Watchdog-Timer-and-FCCU-on-MPC5777c/m-p/1324797#M18909 <P><SPAN>Dear Mr./Mrs.,</SPAN></P><DIV>&nbsp;</DIV><DIV>Should &nbsp;we configure FCCU while we configure Software Watchdog Timer to reset MCU (MCP577C) during a fault situation? Could we reset our controller MPC5777C without configuring FCCU?</DIV><DIV>&nbsp;</DIV><P><SPAN>Best Regards,</SPAN></P> Tue, 17 Aug 2021 14:04:26 GMT https://community.nxp.com/t5/MPC5xxx/Watchdog-Timer-and-FCCU-on-MPC5777c/m-p/1324797#M18909 berat24 2021-08-17T14:04:26Z https://community.nxp.com/t5/MPC5xxx/Watchdog-Timer-and-FCCU-on-MPC5777c/m-p/1325327#M18914 <P>Hello,</P> <BLOCKQUOTE> <P>Should we configure FCCU while we configure Software Watchdog Timer to reset MCU (MCP577C) during a fault situation?</P> </BLOCKQUOTE> <P>I am bit confused. You are configuring SWT during fault situation? Do you mean SWT expiration Interrupt routine?</P> <BLOCKQUOTE> <P>Could we reset our controller MPC5777C without configuring FCCU?</P> </BLOCKQUOTE> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="petervlna_0-1629276143027.png" style="width: 604px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/153317iEEC1C141764020D8/image-dimensions/604x142?v=v2" width="604" height="142" role="button" title="petervlna_0-1629276143027.png" alt="petervlna_0-1629276143027.png" /></span></P> <P>As you can see from reference manual SWT is routed to FCCU, so no direct reset is routed to SIU module.</P> <P>In case you want SWT to reset device you have to configure FCCU to do it.</P> <P>Best regards,</P> <P>Peter</P> Wed, 18 Aug 2021 08:43:22 GMT https://community.nxp.com/t5/MPC5xxx/Watchdog-Timer-and-FCCU-on-MPC5777c/m-p/1325327#M18914 petervlna 2021-08-18T08:43:22Z