Is there a driver for the PDM2PCM? Features automatic gain and filter

I was recently training on a continuous sound recognition project, but my board is not the STM F407, it is just the M4 core but I need the driver of the STM PDM2PCM because it comes with automatic gain control with filters, but this software library he will bind the STM Do you have a tutorial related to PDM? Best.

Hi @Arch,

It seems that STM32 maintains the PDM2PCM library that you are referring to (https://www.st.com/resource/en/user_manual/um2372-stm32cube-pdm2pcm-software-library-for-the-stm32f4f7h7-series-stmicroelectronics.pdf). We do not have a tutorial showing how to use PDM, but we do have some examples that demonstrate how to work with PDM for a few of our supported boards (for example: https://github.com/edgeimpulse/firmware-nordic-thingy53/blob/640122452f550b211d5ce292b618203444936aeb/src/sensors/ei_microphone.cpp).