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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/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/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>DFU problem (nRF5 SDK v14.2.0)</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/35325/dfu-problem-nrf5-sdk-v14-2-0</link><description>Hello I&amp;#39;m a beginner and I try to use the DFU. I use the documentation and I can send my init packet without any problem. But when I try to send my Firmware I have 2 problems. First one is I can&amp;#39;t create an object with a size sup as 256. And the second</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 14 Jun 2018 08:09:42 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/35325/dfu-problem-nrf5-sdk-v14-2-0" /><item><title>RE: DFU problem (nRF5 SDK v14.2.0)</title><link>https://devzone.nordicsemi.com/thread/136077?ContentTypeID=1</link><pubDate>Thu, 14 Jun 2018 08:09:42 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a4b090ae-1b17-49d7-967e-48c7a64924af</guid><dc:creator>Sigurd</dc:creator><description>[quote userid="72061" url="~/f/nordic-q-a/35325/dfu-problem-nrf5-sdk-v14-2-0/135857"]How the device calculate it ?[/quote]
&lt;p&gt;The bootloader uses the function&amp;nbsp;&lt;a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v14.2.0/group__crc32.html?cp=4_0_1_6_11_28_1"&gt;crc32_compute()&lt;/a&gt; to &lt;span&gt;calculate the CRC-32.&lt;/span&gt;&lt;/p&gt;
[quote userid="72061" url="~/f/nordic-q-a/35325/dfu-problem-nrf5-sdk-v14-2-0/135857"]Now I have a problem with the CRC-32[/quote]
&lt;p&gt;Please explain what problems you have with the CRC-32.&amp;nbsp;Wild guess, but maybe you are running into the same problem as seen in &lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/32493/how-to-debug-application-code-after-add-other-service-to-bottonless-dfu/125413#125413"&gt;this post&lt;/a&gt;?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DFU problem (nRF5 SDK v14.2.0)</title><link>https://devzone.nordicsemi.com/thread/135857?ContentTypeID=1</link><pubDate>Wed, 13 Jun 2018 08:51:06 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:3f4fa768-9855-449c-8bcf-c88d5d2028e0</guid><dc:creator>Ludwig POILVE</dc:creator><description>&lt;p&gt;My problem is solve, I was just writing to 01 instead of 02 when I was trying to send the FW. Now I have a problem with the CRC-32 : How the device calculate it ?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DFU problem (nRF5 SDK v14.2.0)</title><link>https://devzone.nordicsemi.com/thread/135782?ContentTypeID=1</link><pubDate>Tue, 12 Jun 2018 15:17:08 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:b26952ed-c383-48d7-9a7c-fffea8927f91</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
[quote userid="72061" url="~/f/nordic-q-a/35325/dfu-problem-nrf5-sdk-v14-2-0"]First one is I can&amp;#39;t create an object with a size sup as 256[/quote]
&lt;p&gt;Do you get any error messages? What object are you trying to create? Could you explain some more about what you are trying to do?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
[quote userid="72061" url="~/f/nordic-q-a/35325/dfu-problem-nrf5-sdk-v14-2-0"]And the second is my command execute send me the 05 error[/quote]
&lt;p&gt;What command do you use? Please provide some more information.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>