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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>watchdog timer</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/16115/watchdog-timer</link><description> Hi all 
i need watchdog timer example for 89C51RD2,so that code execution can start 
from beginning 
regards. 
arjun 
arjun_ram_pal@rediffmail.com </description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: watchdog timer</title><link>https://community.arm.com/thread/95368?ContentTypeID=1</link><pubDate>Thu, 20 Feb 2003 08:07:03 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:2e78829e-6cee-4dba-a41e-9221e9a79efb</guid><dc:creator>erik  malund</dc:creator><description>&lt;p&gt;you got it right re the P89.. .  Re the t89... I do not know, just know from a check a while ago that the chips are similar, not identical.&lt;br /&gt;
&lt;br /&gt;
I do not actually know if the p89 requires this, but as a carryover from a former chip that did, I always disable interrupts before the 2 writes and reenable afterwards.  This guarantees that the two writes are consequtive and even if the p89 should not require it, the code becomes portable to a chip that does.&lt;br /&gt;
&lt;br /&gt;
Erik&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: watchdog timer</title><link>https://community.arm.com/thread/55050?ContentTypeID=1</link><pubDate>Thu, 20 Feb 2003 07:30:14 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:6fac0c29-5923-4361-875c-431088661343</guid><dc:creator>arjun pal</dc:creator><description>&lt;p&gt;it is P89C51RD2,i went through the application notes,in this watch dog has to be loaded with 0x1e,0xe1 sequence to feed watch dog,&lt;br /&gt;
what about T89C51RD2 ?&lt;br /&gt;
&lt;br /&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: watchdog timer</title><link>https://community.arm.com/thread/39814?ContentTypeID=1</link><pubDate>Thu, 20 Feb 2003 07:04:16 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:00911a18-9886-44ab-8790-e9316a3fea6e</guid><dc:creator>erik  malund</dc:creator><description>&lt;p&gt;while similar, the P89C51RD2 and the T89C51RD2 are not identical, please be specific.&lt;br /&gt;
&lt;br /&gt;
Erik&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>