https://devzone.nordicsemi.com/f/nordic-q-a/5025/nrfstudio-can-the-jlink-clock-speed-be-controlledHi I have a board with some extra bits and pieces hanging off the SWD lines. This means the SWD needs to run at a lower speed (500kHz or less). At the lower speed, Kiel tools etc work fine. Is there any way to control the SWD speed in the NRFstudioen-USTelligent Community 13Thu, 15 Jan 2015 16:18:36 GMThttps://devzone.nordicsemi.com/thread/17716?ContentTypeID=1Thu, 15 Jan 2015 16:18:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:53223b12-30fe-46ca-baa6-bdf4b5044ab5Stian R&#248;ed Hafskjold<p>There is no way to do that in nRFgo Studio, but you can use the nrfjprog.exe tool. It is located in the nRF51-Tools download. <a href="https://www.nordicsemi.com/eng/nordic/Products/nRF51822/nRF51-Tools/33444">www.nordicsemi.com/.../33444</a></p> <p>This should give you a clock speed of 500KHz:</p> <pre><code>nrfjprog --clockspeed 500 --program hexfile.hex </code></pre><div style="clear:both;"></div>