DUT of DTM does not respond at UART signalhttps://devzone.nordicsemi.com/f/nordic-q-a/15318/dut-of-dtm-does-not-respond-at-uart-signalI&#39;m trying to set up DTM environment with my DUT(Own device, using nRF51822) and a nRF51DK for Lower Tester, referencing the document, nAN34_v1.0, &quot;Setting up production test using DTM&quot;. I did setup as &quot;Figure 2, Setup with PCB module with SMA connectoren-USTelligent Community 13Mon, 25 Jul 2016 06:36:37 GMTRE: DUT of DTM does not respond at UART signalhttps://devzone.nordicsemi.com/thread/58541?ContentTypeID=1Mon, 25 Jul 2016 06:36:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c6d0b8e3-86f5-4af1-8ec3-fb77cb8d3575Jake<p>I&#39;m sorry. I found my missing.</p> <p>I&#39;m using N51822-QFAA for DUT. So, ld file should be modified for <strong>RAM</strong> to <strong>0x4000</strong> (16KB) as below .</p> <blockquote> <p>MEMORY { FLASH (rx) : ORIGIN = 0x0, LENGTH = 0x40000 RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x4000 }</p> </blockquote> <p>Best Regards.</p> <p>Jake</p><div style="clear:both;"></div>