<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://community.arm.com/utility/feedstylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>The sequence of Power-Up for XC167 and DataFlash</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/24724/the-sequence-of-power-up-for-xc167-and-dataflash</link><description> 
hello: 

 
Every. 

 
I have a SPI data flash connect to XC167.The supply of the data
flash is 3.3v. 

 
Shall the Power-Up of the data flash earlier than XC167 or not
? 
 </description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: The sequence of Power-Up for XC167 and DataFlash</title><link>https://community.arm.com/thread/114649?ContentTypeID=1</link><pubDate>Mon, 02 Feb 2009 15:41:01 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:e3ba49b4-d67e-48a7-8ed5-54e10e4ab5b9</guid><dc:creator>li lin</dc:creator><description>&lt;p&gt;&lt;p&gt;
Thanks!&lt;/p&gt;

&lt;p&gt;
Another puzzle:&lt;/p&gt;

&lt;p&gt;
I can&amp;#39;t buy the TLE7469 in my country.&lt;/p&gt;

&lt;p&gt;
I have to choose other IC instead of TLE7469.&lt;/p&gt;

&lt;p&gt;
I have to designed the power-up sequence of the XC167-5V and
XC167-2.5V.&lt;/p&gt;

&lt;p&gt;
Is the power-up of XC167-5V earlier than XC167-2.5V?&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: The sequence of Power-Up for XC167 and DataFlash</title><link>https://community.arm.com/thread/101596?ContentTypeID=1</link><pubDate>Mon, 02 Feb 2009 11:58:49 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:ee562cf3-13a8-47a4-ab7c-ba1ea7034817</guid><dc:creator>Tamir Michael</dc:creator><description>&lt;p&gt;&lt;p&gt;
well, I don&amp;#39;t know. your flash&amp;#39;d data sheet, on the other hand,
does...&lt;br /&gt;
but regardless of what is stored on the media, your program will
ultimately fail if it attempts to access it before it is fully
powered and initialized. again: consult the data sheet.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: The sequence of Power-Up for XC167 and DataFlash</title><link>https://community.arm.com/thread/77123?ContentTypeID=1</link><pubDate>Mon, 02 Feb 2009 06:40:45 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:cbc0b99a-14d8-4c36-8131-00dfcb3b4168</guid><dc:creator>li lin</dc:creator><description>&lt;p&gt;&lt;p&gt;
it is data flash.It will record some information when a day&amp;#39;s work
finish.&lt;/p&gt;

&lt;p&gt;
There is no code stored in the data flash.&lt;/p&gt;

&lt;p&gt;
There is much noise when power up.&lt;/p&gt;

&lt;p&gt;
What is the right power-up sequence to avoid the data flash
edited?&lt;/p&gt;

&lt;p&gt;
The interface of the data flash is SPI.&lt;/p&gt;

&lt;p&gt;
Thanks!&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: The sequence of Power-Up for XC167 and DataFlash</title><link>https://community.arm.com/thread/55319?ContentTypeID=1</link><pubDate>Mon, 02 Feb 2009 05:53:00 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:771f53a9-234e-4bfa-9777-25c9b193b6b1</guid><dc:creator>Tamir Michael</dc:creator><description>&lt;p&gt;&lt;p&gt;
think of this: what will happen if your processor&amp;#39;s program tries
to access the flash before it is powered...?&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>