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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>FAILED: Cannot connect to J-Link via USB</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/49930/failed-cannot-connect-to-j-link-via-usb</link><description>Hi, 
 I try to use the nRF52840 as a sniffer. I tried to follow ( https://infocenter.nordicsemi.com/pdf/nRF_Sniffer_UG_v2.2.pdf ) but I block in the 2.2.5 part. 
 When I run jlink.exe, I get a pop-up where it&amp;#39;s tell me that &amp;quot;No emulators connected via</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 18 Jul 2019 09:17:07 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/49930/failed-cannot-connect-to-j-link-via-usb" /><item><title>RE: FAILED: Cannot connect to J-Link via USB</title><link>https://devzone.nordicsemi.com/thread/199184?ContentTypeID=1</link><pubDate>Thu, 18 Jul 2019 09:17:07 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:d79fb583-1a92-403d-a6c3-63d8719c6348</guid><dc:creator>awneil</dc:creator><description>&lt;p&gt;Again, the&amp;nbsp;&lt;span&gt;sniffer is &lt;span style="text-decoration:underline;"&gt;&lt;em&gt;&lt;strong&gt;not&lt;/strong&gt;&lt;/em&gt;&lt;/span&gt; intended to work on the Dongle!&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: FAILED: Cannot connect to J-Link via USB</title><link>https://devzone.nordicsemi.com/thread/199180?ContentTypeID=1</link><pubDate>Thu, 18 Jul 2019 09:11:20 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:348f4e17-0bdc-4c4a-a52e-29ca48ecd261</guid><dc:creator>EliasAd</dc:creator><description>&lt;p&gt;So is there any tutorial hat it available and can show me how to set the nRF52840-Dongle as a sniffer ?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: FAILED: Cannot connect to J-Link via USB</title><link>https://devzone.nordicsemi.com/thread/199045?ContentTypeID=1</link><pubDate>Wed, 17 Jul 2019 15:02:27 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:8f578a62-aef2-46db-8a3b-82ba7fe4c582</guid><dc:creator>awneil</dc:creator><description>[quote userid="81074" url="~/f/nordic-q-a/49930/failed-cannot-connect-to-j-link-via-usb"] I can see my dongle in the&amp;nbsp;peripheral manager.[/quote]
&lt;p&gt;That would be as a COM port - not as a J-Link.&lt;/p&gt;
&lt;p&gt;The Dongle does &lt;em&gt;&lt;strong&gt;not&lt;/strong&gt; &lt;/em&gt;have a J-Link on it.&lt;/p&gt;
[quote userid="81074" url="~/f/nordic-q-a/49930/failed-cannot-connect-to-j-link-via-usb"]If someone have some issues[/quote]
&lt;p&gt;It&amp;#39;s not an &amp;quot;issue&amp;quot; - it is expected behaviour!&lt;/p&gt;
&lt;p&gt;The sniffer isn&amp;#39;t intended to work on the Dongle:&lt;/p&gt;
&lt;p&gt;&lt;a href="https://devzone.nordicsemi.com/f/nordic-q-a/49929/nrf52840-dongle-support-for-nrf-sniffer"&gt;https://devzone.nordicsemi.com/f/nordic-q-a/49929/nrf52840-dongle-support-for-nrf-sniffer&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>