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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>Uart data blocked after PC terminal close COM and open it again</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/5899/uart-data-blocked-after-pc-terminal-close-com-and-open-it-again</link><description>Hi All, 
 I use S120 device to monitor advertising and output the mac address,RSSI information via UART to PC terminal. The PC terminal can receive data continusly from the S120 device if its COM port keeps on, however, if I close the COM port of PC</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 12 Mar 2015 03:20:50 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/5899/uart-data-blocked-after-pc-terminal-close-com-and-open-it-again" /><item><title>RE: Uart data blocked after PC terminal close COM and open it again</title><link>https://devzone.nordicsemi.com/thread/20575?ContentTypeID=1</link><pubDate>Thu, 12 Mar 2015 03:20:50 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:57baf3ac-42c5-4c17-9cde-0c7e089c3d67</guid><dc:creator>frank zhang</dc:creator><description>&lt;p&gt;you are right, it won&amp;#39;t happen if HWFC is disabled, I will close this question anyway.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Uart data blocked after PC terminal close COM and open it again</title><link>https://devzone.nordicsemi.com/thread/20574?ContentTypeID=1</link><pubDate>Fri, 06 Mar 2015 09:56:35 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:12d4a98a-21dd-4523-856e-afa9985467c1</guid><dc:creator>Stian R&amp;#248;ed Hafskjold</dc:creator><description>&lt;p&gt;What I think could happen is when you close the COM connection, the output buffer fills up and the chip fails. You should try to disable HW flow control. In the call to &lt;code&gt;simple_uart_config()&lt;/code&gt;, change the last parameter from &lt;em&gt;HWFC&lt;/em&gt; to &lt;em&gt;false&lt;/em&gt;.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>