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<?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>SAM9263 STR register -&amp;gt; processor crashed</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/25026/sam9263-str-register---processor-crashed</link><description> 
Hi, 

 
I need some help from you to boot from an external NOr flash
device (together with the AT91SAM9263 controller from Atmel). I&amp;#39;ve
tried to use the default setup file provided by Keil (SAM9263.s), but
it doesn&amp;#39;t work so far. 

 
If I use the setup</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: SAM9263 STR register -&gt; processor crashed</title><link>https://community.arm.com/thread/77373?ContentTypeID=1</link><pubDate>Sun, 19 Apr 2009 09:09:07 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:0f02bf91-6ab7-481f-b18c-7b0b81b3079d</guid><dc:creator>Howard Garcia</dc:creator><description>&lt;p&gt;&lt;p&gt;
Hi,&lt;/p&gt;

&lt;p&gt;
&lt;i&gt;&lt;br /&gt;
What do you base that thought on? I.e. what did you actually observe
going wrong?&lt;br /&gt;&lt;/i&gt;&lt;/p&gt;

&lt;p&gt;
I want to boot from the nor flash. First of all, I have to
configurate the SMC registers for the right access if the processor
is running at 100 MHz.. At the startup the processor is running at
32kHz - therefore there&amp;#39;s no problem to access the nor flash
device....&lt;/p&gt;

&lt;p&gt;
If I use the standard keil startup file, the processor is not able
to reach the main function....&lt;/p&gt;

&lt;p&gt;
&lt;i&gt;&lt;br /&gt;
Therefore I want to configurate the SMC registers first and then
enable the PLL.&lt;/i&gt;&lt;/p&gt;

&lt;p&gt;
&lt;i&gt;Then why is does the code you show do it the other way
round?&lt;br /&gt;&lt;/i&gt;&lt;/p&gt;

&lt;p&gt;
I only configurate the PLL - but I don&amp;#39;t set the PLL as active.
That means, the processor is running at 32kHz, when I try to
configurate the SMC registers - and after that step I will set the
PLL and the processor clock.&lt;/p&gt;

&lt;p&gt;
best regards&lt;br /&gt;
Howard&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: SAM9263 STR register -&gt; processor crashed</title><link>https://community.arm.com/thread/55876?ContentTypeID=1</link><pubDate>Sun, 19 Apr 2009 06:37:48 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:7b0dd914-6f0a-42e0-be6f-63bb96ade2f3</guid><dc:creator>HansBernhard Broeker</dc:creator><description>&lt;p&gt;&lt;p&gt;
&lt;i&gt;I think that there&amp;#39;s a timing problem in the original setup
file if you try to boot from an external flash device.&lt;/i&gt;&lt;/p&gt;

&lt;p&gt;
What do you base that thought on? I.e. what did you actually
observe going wrong?&lt;/p&gt;

&lt;p&gt;
&lt;i&gt;Therefore I want to configurate the SMC registers first and
then enable the PLL.&lt;/i&gt;&lt;/p&gt;

&lt;p&gt;
Then why is does the code you show do it the other way round?&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>