Power-On Reset Sequence

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Power-On Reset Sequence

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连营张
Contributor I

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.

9202579CDA5BD7ADF67C3F7953939EEC.jpg20160413_220645.jpg

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ufedor
NXP Employee
NXP Employee

Please consider creating a technical case with the issue description in English.

How I could create a Service Request?

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连营张
Contributor I

ok.i have done it.

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