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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>STM32F401  in debug mode working else not</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/36043/stm32f401-in-debug-mode-working-else-not</link><description> 
Hi 

 
I have a simple code with uart2. When i running code in debug mode
and i have to send 4 bytes of data all data been send but when I off
debug button in keil and click reset button on board , code run but
only first byte been send. What might</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: STM32F401  in debug mode working else not</title><link>https://community.arm.com/thread/69855?ContentTypeID=1</link><pubDate>Tue, 07 Mar 2017 08:12:31 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:f5f21cde-1ec0-433c-875f-57f03e55075a</guid><dc:creator>Clive Unspecified</dc:creator><description>&lt;p&gt;&lt;p&gt;
Present the actual code, not a vague description of it. The
processor will do exactly what you tell it too, there is likely a
flaw in your logic. Read the posting instructions for source code
thoroughly.&lt;/p&gt;

&lt;p&gt;
Make sure BOOT0 is pulled low in your design, and when debugging
don&amp;#39;t place a peripheral viewer over the USART&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>