P-SeriesのトピックRe: Power-On Reset Sequence https://community.nxp.com/t5/P-Series/Power-On-Reset-Sequence/m-p/500602#M3080 <HTML><HEAD></HEAD><BODY><P>Please consider creating a technical case with the issue description in English.</P><P><A href="https://community.nxp.com/thread/381898">How I could create a Service Request?</A> </P></BODY></HTML> Thu, 14 Apr 2016 02:03:37 GMT ufedor 2016-04-14T02:03:37Z Power-On Reset Sequence https://community.nxp.com/t5/P-Series/Power-On-Reset-Sequence/m-p/500601#M3079 <HTML><HEAD></HEAD><BODY><P>你好，关于Power-On Reset Sequence，我有一个疑问：在这个过程的末尾，我的定制板的hreset总是先于poreset拉高，这违反了参考手册的要求，如下图所示。根据我的了解，在Power-On Reset Sequence过程中，hreset是由cpu输出的，也就是说在此过程中，我只能通过程序控制poreset?可是无论我通过程序怎么调节poreset（我用的是PIC而不是CPLD），hreset总是先于poreset拉高，这可能是什么原因呢？下图中，黄线代表poreset，绿线代表hreset.</P><P><span class="lia-inline-image-display-wrapper" image-alt="9202579CDA5BD7ADF67C3F7953939EEC.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/31938i1CE1D94335A5EE45/image-size/large?v=v2&amp;px=999" role="button" title="9202579CDA5BD7ADF67C3F7953939EEC.jpg" alt="9202579CDA5BD7ADF67C3F7953939EEC.jpg" /></span><span class="lia-inline-image-display-wrapper" image-alt="20160413_220645.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/31955i910A576C943DA1A9/image-size/large?v=v2&amp;px=999" role="button" title="20160413_220645.jpg" alt="20160413_220645.jpg" /></span></P></BODY></HTML> Wed, 13 Apr 2016 14:46:17 GMT https://community.nxp.com/t5/P-Series/Power-On-Reset-Sequence/m-p/500601#M3079 连营张 2016-04-13T14:46:17Z Re: Power-On Reset Sequence https://community.nxp.com/t5/P-Series/Power-On-Reset-Sequence/m-p/500602#M3080 <HTML><HEAD></HEAD><BODY><P>Please consider creating a technical case with the issue description in English.</P><P><A href="https://community.nxp.com/thread/381898">How I could create a Service Request?</A> </P></BODY></HTML> Thu, 14 Apr 2016 02:03:37 GMT https://community.nxp.com/t5/P-Series/Power-On-Reset-Sequence/m-p/500602#M3080 ufedor 2016-04-14T02:03:37Z Re: Power-On Reset Sequence https://community.nxp.com/t5/P-Series/Power-On-Reset-Sequence/m-p/500603#M3081 <HTML><HEAD></HEAD><BODY><P>ok.i have done it.</P></BODY></HTML> Thu, 14 Apr 2016 05:16:53 GMT https://community.nxp.com/t5/P-Series/Power-On-Reset-Sequence/m-p/500603#M3081 连营张 2016-04-14T05:16:53Z