<?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>help....</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/22547/help</link><description> 
I am newer to c8051f120. My problem is that i wrote the 4 bit LCD
code its work nicly .When i switch off and switch ON the supply to
devlopment board its giving error o/p i.e undefined symbole but once
again i reset the microcontroller using hardware</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: help....</title><link>https://community.arm.com/thread/50084?ContentTypeID=1</link><pubDate>Fri, 20 Jun 2008 03:24:06 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:e19e6766-4762-4775-8430-da6c2e72f5da</guid><dc:creator>Shahul Hameed</dc:creator><description>&lt;p&gt;&lt;p&gt;
Check feasibility,&lt;/p&gt;

&lt;p&gt;
Hi,&lt;/p&gt;

&lt;p&gt;
Also,check xdata initialization.if you are not initialized
it,please initialize with right values for xdata variables or
registers.&lt;/p&gt;

&lt;p&gt;
Shahul&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: help....</title><link>https://community.arm.com/thread/50085?ContentTypeID=1</link><pubDate>Fri, 20 Jun 2008 03:09:49 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:d99e2ce5-82e4-407b-ae9b-dff1f7ee2088</guid><dc:creator>Shahul Hameed</dc:creator><description>&lt;p&gt;&lt;p&gt;
It may be H/W problem&lt;/p&gt;

&lt;p&gt;
Hi,&lt;/p&gt;

&lt;p&gt;
When you switch ON your Development board ,the controller may not
getting reset initially.May be your&lt;br /&gt;
reset circuit is not working initially when power is ON .&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>