https://devzone.nordicsemi.com/f/nordic-q-a/16637/nrf52-app_uart-send-data-missed-on-pc-sideI&#39;m trying to send a set of 246 bytes by uart fifo. I have a PC side which retreive the data, but I always miss some bytes (4 to 6). I&#39;m checking app_uart_put return and it always return NRF_SUCCESS, otherwise the LED would lit for (uint8_t i =en-USTelligent Community 13Mon, 26 Sep 2016 09:41:00 GMThttps://devzone.nordicsemi.com/thread/63639?ContentTypeID=1Mon, 26 Sep 2016 09:41:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:45f30e42-ac67-477e-8fb7-d71d9abfc1a2bjorn-spockeli<p>CTS and RTS are the flow control pins, so if you do not have enough pins, then you need to disable the flow control, i.e. <code>.flow_control = APP_UART_FLOW_CONTROL_DISABLED</code>.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/63637?ContentTypeID=1Mon, 26 Sep 2016 09:03:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6e815b10-38a6-447f-a025-afe4f7e19ddfmakouda<p>@Bjorn I have only two pins, TX and RX, that&#39;s the purpose of CTS and RTS ??</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/63636?ContentTypeID=1Mon, 26 Sep 2016 08:49:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:65a6eaf8-54f4-47a0-961c-f8484d8b70e1bjorn-spockeli<p>@makouda: I doubt that having flow control enabled, i.e. <code>APP_UART_FLOW_CONTROL_ENABLED</code>, and the RTS and CTS pins set to <code>NULL</code> at the same time is a good idea.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/63638?ContentTypeID=1Fri, 23 Sep 2016 19:04:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:76888284-960c-429c-9b5e-42762765cbd9Nguyen Hoan Hoang<p>I use CoolTerm. It is very good easy to use and available on Windows, OSX &amp; Linux. No loss.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/63635?ContentTypeID=1Fri, 23 Sep 2016 14:25:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:320d15b8-d9e9-4d86-b779-e8d1d9145f4fWojtek<p>Ok - it might depend of what chips sits in your usb to uart cable, but i assume that might be PuTTy problem. I observed similar issue when transferig tons of data at high throughputs (3mbps). I suggest checking other software. For me, very simple program called &quot;termite&quot; worked really good - no missing bytes at all. PuTTy lost randomly some bytes...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/63634?ContentTypeID=1Fri, 23 Sep 2016 14:23:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c257d402-349a-4c80-8381-14ac65f776cemakouda<p>I&#39;m using putty as software and USB To RS232 TTL UART as hardware</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/63633?ContentTypeID=1Fri, 23 Sep 2016 14:08:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6a0920ad-e1cb-43dc-9231-449f05ff8382Wojtek<p>yup, so that is usb&lt;-&gt; serial adapter. is it ft232 or something else? what software are you using?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/63632?ContentTypeID=1Fri, 23 Sep 2016 14:07:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0beaf83d-416c-4053-9a3f-b9f27c63d15dmakouda<p>no I dont use serial adapter, I&#39;m using TX RX uart cable with UART to USB adapter on pc side</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/63631?ContentTypeID=1Fri, 23 Sep 2016 13:58:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0bfaedc2-a174-47ed-beb5-a37a89955fa1Wojtek<p>what software are you using on pc to retrieve data? and what serial adapter, segger?</p><div style="clear:both;"></div>