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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>C51: Debug problem: how to use external crystal osc</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/23170/c51-debug-problem-how-to-use-external-crystal-osc</link><description> 
The mcu I&amp;#39;m using: c8051f226 

 
I use an external osc for system clock. When doing the debug
(C51), the simulator couldn&amp;#39;t generate the ready bit XTLVLD
(OSCXCN.7). There is no configuration options available. How should I
proceed with the debug? </description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: C51: Debug problem: how to use external crystal osc</title><link>https://community.arm.com/thread/148905?ContentTypeID=1</link><pubDate>Mon, 24 Mar 2008 23:52:37 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:6e5b598f-a2b5-4e3a-814b-7be266f1c06d</guid><dc:creator>Andy Neil</dc:creator><description>&lt;p&gt;&lt;p&gt;
Because you made a &lt;b&gt;Reply&lt;/b&gt;!&lt;/p&gt;

&lt;p&gt;
You need to make a &lt;i&gt;&lt;b&gt;new&lt;/b&gt;&lt;/i&gt; thread!&lt;/p&gt;

&lt;p&gt;
See: &lt;a href="http://www.keil.com/forum/docs/thread12084.asp"&gt;http://www.keil.com/forum/docs/thread12084.asp&lt;/a&gt;&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: C51: Debug problem: how to use external crystal osc</title><link>https://community.arm.com/thread/124544?ContentTypeID=1</link><pubDate>Mon, 24 Mar 2008 14:36:02 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:204d408f-67f0-47c1-bebb-8bd408c0e411</guid><dc:creator>loclap graklim</dc:creator><description>&lt;p&gt;&lt;p&gt;
why mse is not next thred?&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: C51: Debug problem: how to use external crystal osc</title><link>https://community.arm.com/thread/113774?ContentTypeID=1</link><pubDate>Mon, 24 Mar 2008 14:35:22 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:dbea3d6f-f878-4a68-9ff4-24ed7840d197</guid><dc:creator>loclap graklim</dc:creator><description>&lt;p&gt;&lt;p&gt;
I build one hardware using AT89S52 and use serial communication to
control GSM modem&lt;/p&gt;

&lt;p&gt;
Now my question is, I want to monitor the data which I send from
AT89S52 and also received data from GSM modem to my PC&lt;/p&gt;

&lt;p&gt;
for that purpose I build simple Y cable but it can&amp;#39;t work.&lt;/p&gt;

&lt;p&gt;
please help me to build the cable.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: C51: Debug problem: how to use external crystal osc</title><link>https://community.arm.com/thread/100413?ContentTypeID=1</link><pubDate>Mon, 24 Mar 2008 14:30:22 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:25c2bd21-95ec-4053-b053-9cc0c3cb3dd5</guid><dc:creator>erik  malund</dc:creator><description>&lt;p&gt;&lt;p&gt;
the SILabs chips have built-in In Circuit Emulation (ICE)&lt;/p&gt;

&lt;p&gt;
Erik&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: C51: Debug problem: how to use external crystal osc</title><link>https://community.arm.com/thread/76112?ContentTypeID=1</link><pubDate>Mon, 24 Mar 2008 12:32:49 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:6eec29a5-a9ac-4a35-a93c-a09226c19625</guid><dc:creator>Yi Yao</dc:creator><description>&lt;p&gt;&lt;p&gt;
Hi Erik,&lt;/p&gt;

&lt;p&gt;
Thanks for your reply. I wanted to debug my program without the
mcu at hand...What do you mean by using iic?&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: C51: Debug problem: how to use external crystal osc</title><link>https://community.arm.com/thread/51634?ContentTypeID=1</link><pubDate>Mon, 24 Mar 2008 12:18:25 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:f1564773-2425-45af-805b-45aeda6ca25d</guid><dc:creator>erik  malund</dc:creator><description>&lt;p&gt;&lt;p&gt;
the SILabs chips have free IIC functionality, use that.&lt;/p&gt;

&lt;p&gt;
Also, every simulator I know of (including Keil) is missing
simulation of most derivative specific I/O&lt;/p&gt;

&lt;p&gt;
Erik&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>