Analog and audio

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

I am trying to sample data from PDM microphones using DFSDM and then output the audio using SAI setup as a master PCM interface. Is there a way to synchronize the data coming from the DFSDM with the SAI setup in Master mode?

I can get the frequencies close but not exact. I currently have a circular DMA buffer that I put the data in as I receive it from the DFSDM which feeds the SAI. I have this working but since they aren't exactly the same frequency there is underrun or...

dhedin by Associate
  • 272 Views
  • 0 replies
  • 0 kudos

WM8960 codec

Posted on September 23, 2017 at 21:13Hello ,I'm trying to connect Adafruit microphone using SAI of the STM32L4. This microphone uses I2S protocol, and delivers as output PCM 24 bits data,(The microphone includes Segma delta filter and a decimator wh...