https://devzone.nordicsemi.com/f/nordic-q-a/6880/custom-dtmHi,all.i want to construct our product test system.i follow AN34 page6 (figure 2) to do this.i have a question: DUT and nRF DK module run same firmware ? if correct,when nRF DF enter Tx test,DUT enter Rx test? and then,nRF DK enter Rx test,DUT moduleen-USTelligent Community 13Wed, 13 May 2015 07:52:21 GMThttps://devzone.nordicsemi.com/thread/24252?ContentTypeID=1Wed, 13 May 2015 07:52:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:078426d8-8eda-4bb0-93af-7ad1daa96af0Hung Bui<p>@wuvo: There is a check mark on the left of the answer, it&#39;s green when you hover the mouse on top of it, please click it. You can also press the up and down arrow on top of it to vote. Vote will help other on searching for question and solution.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/24251?ContentTypeID=1Wed, 13 May 2015 01:17:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3e2adf08-c68c-422c-a309-8b4cce9a5136wuvo.leo<p>Hi,Hung BUi.How did i to mark the answer?i a newbiee:)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/24249?ContentTypeID=1Tue, 12 May 2015 12:22:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:95a2d069-6428-40af-9bc2-fa19d043e856Hung Bui<p>@wuvo: did it work for you ? if it does, please mark the answer as correct :)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/24250?ContentTypeID=1Sun, 10 May 2015 01:45:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:39108a1b-0f3f-4bbb-9577-2087e316a8d2wuvo.leo<p>Thanks a lot,Hung Bui!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/24248?ContentTypeID=1Tue, 05 May 2015 15:39:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c4a2c799-32d7-403b-a66f-e76f285df766Hung Bui<p>@wuvo.leo: You are correct, you can use same firmware for both, one will be in TX mode, one will be in RX mode. You would need to modify the python code to match the COM ports.</p><div style="clear:both;"></div>