https://devzone.nordicsemi.com/f/nordic-q-a/110660/using-pwm-for-audio-with-ppiHi, I want to implement an audio feature via the nRF52, using PWM, I want to play a audio sequence, changing the PWM definitions in a fast rate, and thus would like to use PPI, is there an example of something like that, is that even possible? Thanksen-USTelligent Community 13Mon, 29 Apr 2024 11:33:05 GMThttps://devzone.nordicsemi.com/thread/481056?ContentTypeID=1Mon, 29 Apr 2024 11:33:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b41227e8-f584-4ccf-9b05-f801dd9e1fa2ovrebekk<p>Hi Eran</p> <p>It is certainly possible to do what you describe, yes. The question is what kind of sample rate and bitrate you need for the audio?&nbsp;</p> <p>I implemented some code a while back to do music generation in the nRF52. This wasn&#39;t for playback of audio files, but for sound generation, but the principle for setting up the PWM could be the same. You can have a look at the PWM setup <a href="https://github.com/too1/ncs-melody/blob/master/src/main.c">here</a>.&nbsp;</p> <p>I didn&#39;t use a timer to control the PWM over PPI, but rather relied on the&nbsp;PWM module to advance the buffer after every PWM period. When doing this the sample rate will be dictated by the PWM top value. In my case I used a top value of 255 (for 8 bit audio), which in turn gives me a sample rate of&nbsp;roughly 62kHz.&nbsp;</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>