https://devzone.nordicsemi.com/f/nordic-q-a/90139/nrfx-pwm-peripheral-s-clock-sourceI want to make sure I understand something fundamental. The nRF52840&#39;s PWM peripheral is hardware based unlike the app_pwm library which is software based, (originally developed for the nRF51 family which has no PWM silicon). So my question: Am I correcten-USTelligent Community 13Tue, 19 Jul 2022 04:53:36 GMThttps://devzone.nordicsemi.com/thread/377499?ContentTypeID=1Tue, 19 Jul 2022 04:53:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:505972aa-4d5a-45dc-9d0b-2c2aa523ca19Karl Ylvisaker<p>Hello,</p> [quote user=""]I want to make sure I understand something fundamental.[/quote] <p>Absolutely - we welcome any questions you might have! :)</p> [quote user=""]Am I correct that no nRF52840 Timer peripheral is used, (such as nrfx_timer0, nrfx_timer1, nrfx_timer2, nrfx_timer3, or nrfx_timer4), for the generation of PWM by the nrfx_pwm peripheral?&nbsp;[/quote] <p>This is correct - the pwm peripheral does not use any TIMER or RTC instances to generate its pulses, it uses <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/pwm.html#concept_l3d_smw_nr">its own wave counter</a>.<br />You can also verify this by looking through the nrfx_pwm source code, to see that it does not depend on any other peripherals to function.<br /><br />Best regards,<br />Karl</p><div style="clear:both;"></div>