<?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>EINT0 behavior at powerup lpc2387</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/25235/eint0-behavior-at-powerup-lpc2387</link><description> 
background: 
on a lpc2387 processor, we have a push button on EINT0 and when
active the switch grounds the EINT0 p53 low. 

 
problem: 
if the push button is held down at at the time the processor is
powered up the part goes into the built in boot loader</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: EINT0 behavior at powerup lpc2387</title><link>https://community.arm.com/thread/103175?ContentTypeID=1</link><pubDate>Wed, 10 Jun 2009 00:17:42 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:f731b94a-1291-4c6e-880d-5728f410b325</guid><dc:creator>ImPer Westermark</dc:creator><description>&lt;p&gt;&lt;p&gt;
It depends on which level you lock with. Look in the user manual
for the chip. The manual is thick because it has a lot of useful
information.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: EINT0 behavior at powerup lpc2387</title><link>https://community.arm.com/thread/77508?ContentTypeID=1</link><pubDate>Tue, 09 Jun 2009 16:08:48 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:f91d353c-fd86-426e-9e69-b6b01ff8c2d7</guid><dc:creator>j p</dc:creator><description>&lt;p&gt;&lt;p&gt;
&amp;quot;You can use the protection to deactivate this way into the boot
loader&amp;quot;&lt;/p&gt;

&lt;p&gt;
so you are saying locking the code will prevent EINT0 entry to the
boot loader? EINT0 will behave normally at power up.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: EINT0 behavior at powerup lpc2387</title><link>https://community.arm.com/thread/56245?ContentTypeID=1</link><pubDate>Tue, 09 Jun 2009 15:50:25 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:41b4da94-a158-4896-9ca9-3bba72be883b</guid><dc:creator>ImPer Westermark</dc:creator><description>&lt;p&gt;&lt;p&gt;
You can use the protection to deactivate this way into the boot
loader. But you must then add another pin somewhere that your
application watches. Or you must add a communication interface where
your program accepts data and performs IAP.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>