https://devzone.nordicsemi.com/f/nordic-q-a/18119/pwm-driver-gpiote-ppiHello! I need to start a sequence of 26 pulses after getting low level signal on gpiote pin. I can do it in gpiote event handler but I need it most of the time so I want to use ppi for that here is my code: nrf_ppi_channel_t ppi_channel; nrf_drv_pwm_ten-USTelligent Community 13Sat, 03 Dec 2016 05:49:02 GMThttps://devzone.nordicsemi.com/thread/69896?ContentTypeID=1Sat, 03 Dec 2016 05:49:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9ed68089-c099-4f74-a81c-bd984839a989Stas<p>I got it. For odd number we need <code>NRF_PWM_TASK_SEQSTART1</code> task</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/69895?ContentTypeID=1Sat, 03 Dec 2016 03:17:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2b106c3d-9ef7-4c22-a73b-575bddbc6f3fStas<p>Thank you. It&#39;s worked. As you told I commented out <code>start_playback</code> inside the <code>nrf_drv_pwm_simple_playback</code> function. and replace this function into my HX711_init function. but I have to point one pulse less in parameter of this playback function (in my case 25) otherwise I&#39;ll get 27 pulses. On other hand If I point 24 pulses I&#39;ll get 24 pulses. So actually I don&#39;t know how got for example 25 pulses (sometimes I need this amount of pulses).</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/69894?ContentTypeID=1Fri, 02 Dec 2016 16:34:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e0c5a05b-a522-45b7-8b4d-fdc6c84f0cc8Ole Bauck<p>You can&#39;t use <code>nrf_drv_pwm_simple_playback</code> directly as this will trigger the start task at the end of the function.</p> <p>You can use the function, just comment out <code>start_playback</code>. Then you should use the <code>NRF_PWM_TASK_SEQSTART0</code> task as the PPI Event End Point (EEP).</p><div style="clear:both;"></div>