topic Re: mpc5775k how to entry debug mode? in MPC5xxx https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704054#M8982 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>When reset is assert micro cannot enter debug mode.</P><P>Peter</P></BODY></HTML> Fri, 15 Sep 2017 07:35:55 GMT petervlna 2017-09-15T07:35:55Z mpc5775k how to entry debug mode? https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704053#M8981 <HTML><HEAD></HEAD><BODY><P>when &nbsp;assert &nbsp;reset ,the chip can't entry debug mode by setting the OCR[DR],OCR[WKUP]&nbsp;</P></BODY></HTML> Thu, 14 Sep 2017 15:12:33 GMT https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704053#M8981 lyj 2017-09-14T15:12:33Z Re: mpc5775k how to entry debug mode? https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704054#M8982 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>When reset is assert micro cannot enter debug mode.</P><P>Peter</P></BODY></HTML> Fri, 15 Sep 2017 07:35:55 GMT https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704054#M8982 petervlna 2017-09-15T07:35:55Z Re: mpc5775k how to entry debug mode? https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704055#M8983 <HTML><HEAD></HEAD><BODY><P>Are you creating you own JTAG debug tool?</P><P>Did you follow AN4365?</P><P><A class="link-titled" href="https://cache.nxp.com/docs/en/application-note/AN4365.pdf?fsrch=1&amp;sr=1&amp;pageNum=1" title="https://cache.nxp.com/docs/en/application-note/AN4365.pdf?fsrch=1&amp;sr=1&amp;pageNum=1">https://cache.nxp.com/docs/en/application-note/AN4365.pdf?fsrch=1&amp;sr=1&amp;pageNum=1</A>&nbsp;</P><P>Peter</P></BODY></HTML> Fri, 15 Sep 2017 07:38:47 GMT https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704055#M8983 petervlna 2017-09-15T07:38:47Z Re: mpc5775k how to  entry debug mode? https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704056#M8984 <HTML><HEAD></HEAD><BODY><P>yes</P><P>When reset is assert ,micro&nbsp;&nbsp;need waite&nbsp;for a long time and shift-ir "211"(bypass) before Set the OCR[DR] and OCR[WKUP] bits.</P><P><SPAN style="color: #2e3033; font-family: Arial, 'Microsoft YaHei', 微软雅黑, 宋体, 'Malgun Gothic', Meiryo, sans-serif; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 18px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; display: inline !important; float: none;">after entering debug mode，read-write sram will go wrong</SPAN></P></BODY></HTML> Fri, 15 Sep 2017 13:46:17 GMT https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704056#M8984 lyj 2017-09-15T13:46:17Z Re: mpc5775k how to entry debug mode? https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704057#M8985 <HTML><HEAD></HEAD><BODY><P>Hi yj L,</P><P></P><P>have you found a solution for the problem?</P><P></P><P>I'm also having trouble to get the 5775K into debug mode and read/write with Nexus after entering debug mode.</P><P></P><P>Regards</P><P>whoam</P></BODY></HTML> Wed, 18 Oct 2017 10:30:48 GMT https://community.nxp.com/t5/MPC5xxx/mpc5775k-how-to-entry-debug-mode/m-p/704057#M8985 whoam 2017-10-18T10:30:48Z