topic Re: &quot;CM4 is in lockup&quot; - when does it happen in Vybrid Processors https://community.nxp.com/t5/Vybrid-Processors/quot-CM4-is-in-lockup-quot-when-does-it-happen/m-p/638896#M5763 <HTML><HEAD></HEAD><BODY><P>Hi Yuri,</P><P>ARM M4 manual says "..The processor enters a lockup state if a fault occurs when executing the NMI or HardFault handlers. "</P><P><A class="link-titled" href="http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0553a/BGBFCHGC.html" title="http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0553a/BGBFCHGC.html">http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0553a/BGBFCHGC.html</A>&nbsp;</P><P></P><P>Thus it shouldn't be in the state just after system reset.</P></BODY></HTML> Thu, 08 Dec 2016 09:11:06 GMT dry 2016-12-08T09:11:06Z "CM4 is in lockup" - when does it happen https://community.nxp.com/t5/Vybrid-Processors/quot-CM4-is-in-lockup-quot-when-does-it-happen/m-p/638895#M5762 <HTML><HEAD></HEAD><BODY><P>There is a reset or interrupt source called "CM4 is in lockup". But what I cannot find in the Vybrid manual describing when can this happen. </P><P>When and why can this happen?</P></BODY></HTML> Tue, 08 Nov 2016 08:28:01 GMT https://community.nxp.com/t5/Vybrid-Processors/quot-CM4-is-in-lockup-quot-when-does-it-happen/m-p/638895#M5762 dry 2016-11-08T08:28:01Z Re: "CM4 is in lockup" - when does it happen https://community.nxp.com/t5/Vybrid-Processors/quot-CM4-is-in-lockup-quot-when-does-it-happen/m-p/638896#M5763 <HTML><HEAD></HEAD><BODY><P>Hi Yuri,</P><P>ARM M4 manual says "..The processor enters a lockup state if a fault occurs when executing the NMI or HardFault handlers. "</P><P><A class="link-titled" href="http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0553a/BGBFCHGC.html" title="http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0553a/BGBFCHGC.html">http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0553a/BGBFCHGC.html</A>&nbsp;</P><P></P><P>Thus it shouldn't be in the state just after system reset.</P></BODY></HTML> Thu, 08 Dec 2016 09:11:06 GMT https://community.nxp.com/t5/Vybrid-Processors/quot-CM4-is-in-lockup-quot-when-does-it-happen/m-p/638896#M5763 dry 2016-12-08T09:11:06Z