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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 Nucleo - Flash Download Failed – Cortex M4</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/32573/stm32f401-nucleo---flash-download-failed-cortex-m4</link><description> 
Hello, I’m new to STM32s having moved on from PICs and
Arduinos and I’m using an STM32F401 Nucleo board with an
STM32F401RE chip. 

 
I’ve used STM32CubeMX and written a blinky LED so I know
eveythings working 
I’ve downloaded the STM32CubeF4 projects</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: STM32F401 Nucleo - Flash Download Failed – Cortex M4</title><link>https://community.arm.com/thread/93386?ContentTypeID=1</link><pubDate>Wed, 29 Apr 2015 13:32:26 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:bb0a75b7-03f4-4c5a-b855-d0d7176183ad</guid><dc:creator>Andy Neil</dc:creator><description>&lt;p&gt;&lt;p&gt;
Should, of course, say: &lt;i&gt;&amp;quot;is the correct &lt;b&gt;speed&lt;/b&gt;
specified?&amp;quot;&lt;/i&gt;&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: STM32F401 Nucleo - Flash Download Failed – Cortex M4</title><link>https://community.arm.com/thread/69183?ContentTypeID=1</link><pubDate>Wed, 29 Apr 2015 13:30:47 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:05ea7a22-f0b7-4840-814a-b536cc998be6</guid><dc:creator>Andy Neil</dc:creator><description>&lt;p&gt;&lt;p&gt;
&lt;i&gt;&amp;quot; I suspect it&amp;rsquo;s something to do with Configure Flash
Tools &amp;gt; Utilities&amp;quot;&lt;/i&gt;&lt;/p&gt;

&lt;p&gt;
Also look at Options for Target &amp;gt; Debug:&lt;/p&gt;

&lt;p&gt;
- is the right debug adaptor specified?&lt;/p&gt;

&lt;p&gt;
Check &amp;#39;Settings&amp;#39; next to the debug adaptor:&lt;/p&gt;

&lt;p&gt;
- is the correct interface specified (JTAG or SWD)&lt;/p&gt;

&lt;p&gt;
- is the correct speec specified.&lt;/p&gt;

&lt;p&gt;
Compare these settings against one of the &amp;quot;working&amp;quot; projects.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>