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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>USB not detected</title><link>https://community.arm.com/developer/tools-software/f/simulation-models/47647/usb-not-detected</link><description> Hi, 
 My friend sent me his code, I change the code a little bit in his flash memory, protocol, variable, function and more. 
 After compile I not seeing any errors or warnings. 
 but when I uploading the code to my board, the computer is not detecting</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: USB not detected</title><link>https://community.arm.com/thread/167634?ContentTypeID=1</link><pubDate>Wed, 23 Sep 2020 13:56:52 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:6331fa3f-aa31-4a25-8143-73d29f82855a</guid><dc:creator>DRsecr</dc:creator><description>&lt;p&gt;Hi again =]&lt;/p&gt;
&lt;p&gt;The problem is with FFT function.&lt;/p&gt;
&lt;p&gt;It seen the functions is too heavy or something for the USB&lt;/p&gt;
&lt;p&gt;&lt;pre class="ui-code" data-mode="text"&gt;arm_cfft_radix4_init_f32(&amp;amp;S, FFT_SIZE, 0, 1);
arm_cfft_radix4_f32(&amp;amp;S, input);
arm_cmplx_mag_f32(input, AFFT, FFT_SIZE);
arm_max_f32(AFFT, FFT_SIZE, &amp;amp;maxValue, &amp;amp;maxIndex);&lt;/pre&gt;&lt;/p&gt;
&lt;p&gt;I hope you can help me/lead me,&lt;/p&gt;
&lt;p&gt;Thank you very much!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: USB not detected</title><link>https://community.arm.com/thread/167523?ContentTypeID=1</link><pubDate>Thu, 17 Sep 2020 08:16:43 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:2e17f440-8a81-42a5-bf5f-c1007b6a94ac</guid><dc:creator>Andy Neil</dc:creator><description>[quote userid="63462" url="~/developer/tools-software/f/simulation-models/47647/usb-not-detected/167522"]there is a lot of little changes[/quote]
&lt;p&gt;So go back to the original, unmodified, working code.&lt;/p&gt;
&lt;p&gt;Then make just one change at a time:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;If the code still works, carry on&lt;/li&gt;
&lt;li&gt;If the code stops working, start debugging!&lt;/li&gt;
&lt;/ul&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: USB not detected</title><link>https://community.arm.com/thread/167522?ContentTypeID=1</link><pubDate>Thu, 17 Sep 2020 07:58:24 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:8859e1f0-1acc-45f6-9a1d-acadb33ffd7f</guid><dc:creator>DRsecr</dc:creator><description>&lt;p&gt;A.&amp;nbsp;I do not want you to teach me the way, but to direct me where a mistake is possible?&amp;nbsp;&lt;/p&gt;
&lt;p&gt;B. I compared between them, there is a lot of little changes.&lt;/p&gt;
&lt;p&gt;I didnt change anything related to USB, just the length of the messages and the&amp;nbsp;way it is conducted.&lt;/p&gt;
&lt;p&gt;In brief, where is USB configuration and in particular&amp;nbsp;&lt;span&gt;where is USB configuration&lt;/span&gt; that related to the detection by computer?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thank you a lot on your response!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: USB not detected</title><link>https://community.arm.com/thread/167507?ContentTypeID=1</link><pubDate>Wed, 16 Sep 2020 15:49:34 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:8ba4b163-c41d-4a63-a2b6-aed9a6770914</guid><dc:creator>Andy Neil</dc:creator><description>[quote userid="63462" url="~/developer/tools-software/f/simulation-models/47647/usb-not-detected"]&lt;p&gt;what i made wrong?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;[/quote]
&lt;p&gt;How do you expect anyone to answer that - we can&amp;#39;t see your code!&lt;/p&gt;
[quote userid="63462" url="~/developer/tools-software/f/simulation-models/47647/usb-not-detected"]Where should i check?[/quote]
&lt;p&gt;Compare your (borken) code with your friend&amp;#39;s (working) code - see where they differ.&lt;/p&gt;
&lt;p&gt;Single step both versions of the code - compare &amp;amp; contrast.&lt;/p&gt;
&lt;p&gt;Why not get your friend to help you?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>