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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 with SoftDevice, Trouble Receiving/Transmitting</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/43341/uart-with-softdevice-trouble-receiving-transmitting</link><description>Hi all 
 I would like to use UART on a custom board using the nrf52840 chip. I am using the app_uart driver and have gotten a loopback to work. I have a couple of questions: 
 
 I&amp;#39;ve tried just sending and receiving data with the UART on the custom board</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Sun, 10 Feb 2019 13:34:46 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/43341/uart-with-softdevice-trouble-receiving-transmitting" /><item><title>RE: UART with SoftDevice, Trouble Receiving/Transmitting</title><link>https://devzone.nordicsemi.com/thread/170236?ContentTypeID=1</link><pubDate>Sun, 10 Feb 2019 13:34:46 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:49ceab4b-ff97-4790-8674-353bdf2fb756</guid><dc:creator>Kenneth</dc:creator><description>&lt;p&gt;Seems to me that it&amp;#39;s something wrong with your fifo buffer, since when I go into&amp;nbsp;app_uart_get() -&amp;gt; app_fifo_get() that seems to be the only one that can return&amp;nbsp;NRF_ERROR_NOT_FOUND. Maybe you should look into your&amp;nbsp;APP_UART_FIFO_INIT().&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: UART with SoftDevice, Trouble Receiving/Transmitting</title><link>https://devzone.nordicsemi.com/thread/169806?ContentTypeID=1</link><pubDate>Wed, 06 Feb 2019 20:28:59 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:40a3e173-af18-47e6-a8b0-606905be4c62</guid><dc:creator>graceling</dc:creator><description>&lt;p&gt;Yup, I&amp;#39;ve disabled the flow control. The app_uart_get() is throwing the error.&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: UART with SoftDevice, Trouble Receiving/Transmitting</title><link>https://devzone.nordicsemi.com/thread/169514?ContentTypeID=1</link><pubDate>Tue, 05 Feb 2019 12:56:41 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:23a08fff-a1d4-4baa-8b74-dfdd8cb75ec5</guid><dc:creator>Kenneth</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;I assume you have modified \nRF5_SDK_15.2.0_9412b96\examples\peripheral\uart, then you can disable flow control like this:&lt;/p&gt;
&lt;p&gt;&lt;pre class="ui-code" data-mode="c_cpp"&gt;    const app_uart_comm_params_t comm_params =
      {
          RX_PIN_NUMBER,
          TX_PIN_NUMBER,
          RTS_PIN_NUMBER,
          CTS_PIN_NUMBER,
          APP_UART_FLOW_CONTROL_DISABLED, // to turn OFF flow control
          false,
#if defined (UART_PRESENT)
          NRF_UART_BAUDRATE_115200
#else
          NRF_UARTE_BAUDRATE_115200
#endif
      };&lt;/pre&gt;&lt;/p&gt;
&lt;p&gt;Which API call return&amp;nbsp;&lt;span&gt;&amp;#39;Not Found&amp;#39;?&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Best regards,&lt;br /&gt;Kenneth&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>