https://devzone.nordicsemi.com/f/nordic-q-a/68033/pdm-event-handler-not-being-firedI am trying to interface the microphone with nrf52840 and using the PDM interface. After initializing the module (nrfx_pdm_init) and then set the buffer , I do see clock and data signals on the Saleae but the pdm event handler is not being fired. erren-USTelligent Community 13Mon, 09 Nov 2020 12:31:59 GMThttps://devzone.nordicsemi.com/thread/278993?ContentTypeID=1Mon, 09 Nov 2020 12:31:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0b61c484-ecfb-41fc-91d1-60258c605cf1run_ar<p>Hi,</p> <p>Are you sure the handler is never handled? could you try to call <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/group__nrfx__pdm.html#ga6a35f8ef97b4ee2774d34473c0d213b3"><span><span>nrfx_pdm_buffer_set</span></span></a> after start. This function needs to be called in the handler as well as a response to the buffer request event</p><div style="clear:both;"></div>