pdm clock can not gernerated

[Sunil@123]

Hello, 

I am  using nrf52_DK to debug PDM with a digital MIC, and select the pin 29 for the PDM CLK, But I haven't seen any clock signal output, for generating the clock I have write below code. Is it a correct way for generating a clock? If this is not a correct method then please can you guide me to generate a clock.

NRF_PDM->PSEL.CLK = (CONFIG_IO_PDM_CLK << PDM_PSEL_CLK_PIN_Pos) | (PDM_PSEL_CLK_CONNECT_Connected << PDM_PSEL_CLK_CONNECT_Pos);
NRF_PDM->PDMCLKCTRL = (PDM_PDMCLKCTRL_FREQ_Default << PDM_PDMCLKCTRL_FREQ_Pos);
NRF_PDM->ENABLE = (PDM_ENABLE_ENABLE_Enabled << PDM_ENABLE_ENABLE_Pos);
NRF_PDM->TASKS_START = 1;

Thank You.

[Kenneth]

I suggest to use the nrfx_pdm driver from the nRF5 SDK:
https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/group__nrfx__pdm.html

For instance I can find someone have made an simple example here that show init, start and callback (make sure to add nrfx_pdm.c file to the project): 
https://devzone.nordicsemi.com/f/nordic-q-a/63545/pdm-simple-example