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µC Board STM32l4+ STM32l4S5 Discovery Kit B-l475E-IOT01A DFSDM Microphone Data via DMA to UART


Hi, I have a question about using a STM32l4+ Discovery Kit ( STM32l4S5 / b-l475e-iot01a ). I’m trying to use both microphones with the DFSDM function with DMA and send it to a PC COM-Port using UART (USART1). To program the Microcontroller I’m using the STM32CubeIDE Software. I tried a few things but I either don’t get the microphones to record correct data to the Memory or don’t get the the board to transmit any data. Sending single pieces of data with the HAL_UART_TRANSMIT function works. 

Is there any example on who to realize this kind of function on the board? I can’t find any useful examples on the internet, but I’m sure I’m not the first person ever to try using this board that way.