https://devzone.nordicsemi.com/f/nordic-q-a/4695/troubles-in-4-channels-pwm-signal-generationHello, I try to generate 4 PWM signals on an nRF51 DK board, but I have two troubles : in the &quot;Simple PWM&quot;, during nrf_pwm_set_value() function the TIMER is stopped and restarted, which will cause a glitch on the other channel too en-USTelligent Community 13Fri, 05 Dec 2014 09:07:27 GMThttps://devzone.nordicsemi.com/thread/16645?ContentTypeID=1Fri, 05 Dec 2014 09:07:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:44a3fc19-8521-4056-89e2-5de45bb3cf06ovrebekk<p>Hi</p> <p>What PWM settings are you using? Are you using a SoftDevice? If yes, have you set the USE_SOFTDEVICE define in the header file to 1?</p> <p>Regards Torbjørn</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/16644?ContentTypeID=1Wed, 03 Dec 2014 15:21:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8917cf17-0be9-4290-9e07-8480a97cd85egyurka<p>Hi Stefan, thank you for your quick answer. I checked the new nrf_pwm files. My first trouble seems to be solved, I can generate pwm signals on 4 channel. But the second behaviour is the same as before, if I modify the values with nrf_pwm_set_value(), the polarity of this output signal can sometimes be inverted. I experienced, this incident happens mainly, if more channels hold the same setup value. If I restart the wrong channel from 0, the output signal will be good again. Best Regards: Gyorgy</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/16643?ContentTypeID=1Wed, 03 Dec 2014 12:39:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:56b4b4ee-15a3-4dc2-a686-10ac554e824bStefan Birnir Sverrisson<p>Hi</p> <p>The <a href="https://github.com/NordicSemiconductor/nrf51-pwm-library">PWM library</a> for nRF51 has been updated recently and I suspect the update addresses the issues you mention. Perhaps you can check that out and report if it is adequate.</p><div style="clear:both;"></div>