PowerQUICC ProcessorsのトピックMPC 875 Power on Reset https://community.nxp.com/t5/PowerQUICC-Processors/MPC-875-Power-on-Reset/m-p/880916#M2741 <HTML><HEAD></HEAD><BODY><P>Hello Everyone,</P><P>I have worked a lot on MPC5xx and some MPC860 processors but I never had an issue like the one I am facing now.</P><P>I am giving the PORESET signal to my MPC875 . But instead of starting normal initial operation, it directly enters Debugger mode. Also after receiving the PORESET , the MPC 875 doesn't pull-up the HRESET and the SRESET signal.&nbsp; I have checked the clockout and every other pin related to the POWER ON reset. But everything is working as expected. I have followed the steps given in the datasheet of MPC875 (eg. Ensuring that the PORESET is asserted for a minimum of 3 usec, checking the RSTCONF pin to be low, MODCK1,MODCK2 pins)</P><P>Can anyone please re-tell me the steps in the Power-On Reset of MPC 875?</P><P>Any pointers will be highly appreciated.&nbsp;</P><P></P><P>Thank you.</P></BODY></HTML> Sun, 03 Feb 2019 15:28:48 GMT reenak 2019-02-03T15:28:48Z MPC 875 Power on Reset https://community.nxp.com/t5/PowerQUICC-Processors/MPC-875-Power-on-Reset/m-p/880916#M2741 <HTML><HEAD></HEAD><BODY><P>Hello Everyone,</P><P>I have worked a lot on MPC5xx and some MPC860 processors but I never had an issue like the one I am facing now.</P><P>I am giving the PORESET signal to my MPC875 . But instead of starting normal initial operation, it directly enters Debugger mode. Also after receiving the PORESET , the MPC 875 doesn't pull-up the HRESET and the SRESET signal.&nbsp; I have checked the clockout and every other pin related to the POWER ON reset. But everything is working as expected. I have followed the steps given in the datasheet of MPC875 (eg. Ensuring that the PORESET is asserted for a minimum of 3 usec, checking the RSTCONF pin to be low, MODCK1,MODCK2 pins)</P><P>Can anyone please re-tell me the steps in the Power-On Reset of MPC 875?</P><P>Any pointers will be highly appreciated.&nbsp;</P><P></P><P>Thank you.</P></BODY></HTML> Sun, 03 Feb 2019 15:28:48 GMT https://community.nxp.com/t5/PowerQUICC-Processors/MPC-875-Power-on-Reset/m-p/880916#M2741 reenak 2019-02-03T15:28:48Z Re: MPC 875 Power on Reset https://community.nxp.com/t5/PowerQUICC-Processors/MPC-875-Power-on-Reset/m-p/880917#M2742 <HTML><HEAD></HEAD><BODY><P>Following are my screenshots :<span class="lia-inline-image-display-wrapper"><img src="https://community.nxp.com/t5/image/serverpage/image-id/65310i1EB896A1839097D4/image-size/large?v=v2&amp;px=999" title="2.png" alt="2.png" /></span></P><P><span class="lia-inline-image-display-wrapper"><img src="https://community.nxp.com/t5/image/serverpage/image-id/65357i188EEA4BE3198B5D/image-size/large?v=v2&amp;px=999" title="1.png" alt="1.png" /></span></P></BODY></HTML> Mon, 04 Feb 2019 23:45:44 GMT https://community.nxp.com/t5/PowerQUICC-Processors/MPC-875-Power-on-Reset/m-p/880917#M2742 reenak 2019-02-04T23:45:44Z