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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>Clock rate required for debugger on CY3684 EZ-USB</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/25943/clock-rate-required-for-debugger-on-cy3684-ez-usb</link><description> 
I&amp;#39;m using a Cypress CY7C68013A on their CY3684/3674 EZ-USB
Advanced Development Board. If I change the 8051&amp;#39;s clock rate from
48MHz to either 24MHz or 12MHz the Keil debugger stops. I am trying
to determine if a slower clock rate would reduce the noise</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: Clock rate required for debugger on CY3684 EZ-USB</title><link>https://community.arm.com/thread/56659?ContentTypeID=1</link><pubDate>Wed, 26 Aug 2009 07:44:13 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:5677fbd8-ea21-45a7-bc42-fb4140e95f49</guid><dc:creator>Chinzei Tsuneo</dc:creator><description>&lt;p&gt;&lt;p&gt;
When the core clock is changed, the baudrate of the serial port
for the Keil monitor is also altered.&lt;br /&gt;
For 48MHz core clock (default), the baudrate is 38,400. For 24MHz,
it&amp;#39;s 19,200, and 12MHz, 9,600&lt;/p&gt;

&lt;p&gt;
&amp;quot;Settings for &amp;#39;Connection To Target&amp;#39; dialog box in Keil
debugger&amp;quot;&lt;br /&gt;
&lt;a target="_blank" href="http://www.cypress.com/?rID=33427&amp;amp;l=2"&gt;&amp;quot;&amp;gt;http://www.keil.com/forum/docs/thread12995.asp&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;
- Required synch delay is not inserted&lt;/p&gt;

&lt;p&gt;
EZ-USB TRM&lt;br /&gt;
&lt;a target="_blank" href="http://www.cypress.com/?docID=9298"&gt;www.cypress.com/&lt;/a&gt;&lt;br /&gt;

15.15 Synchronization Delay&lt;/p&gt;

&lt;p&gt;
- Variables are overwritten by wrong pointer operation.&lt;/p&gt;

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