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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>ISR durtation - what is acceptable</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/29161/isr-durtation---what-is-acceptable</link><description> 
What do you think of a periodic interrupt (1 millisecond)
consuming about 45 microsecond on a LPC24xx chip running at 64 MHz ?
Does this make the system not suitable for certain means? 
 </description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: ISR durtation - what is acceptable</title><link>https://community.arm.com/thread/67462?ContentTypeID=1</link><pubDate>Sat, 12 May 2012 08:04:03 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:49b2cedb-afbe-4802-a27d-e63c16c15003</guid><dc:creator>Andy Neil</dc:creator><description>&lt;p&gt;&lt;p&gt;
Obviously, Yes - it makes it unsuitable for anything that can&amp;#39;t
tolerate the CPU being &amp;quot;hogged&amp;quot; for 45 microseconds every
millisecond!&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ISR durtation - what is acceptable</title><link>https://community.arm.com/thread/67461?ContentTypeID=1</link><pubDate>Sat, 12 May 2012 07:30:14 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:56160851-2640-4273-bdb1-9ba0e891d929</guid><dc:creator>ImPer Westermark</dc:creator><description>&lt;p&gt;&lt;p&gt;
Not a problem unless you have specific other needs that must be
serviced quicker.&lt;/p&gt;

&lt;p&gt;
Only you know what real-time requirement your specific project
has.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>