MP45DT02 microphone on STM324xG_EVAL board &frequency problem

[shima_oskouei]

Posted on July 13, 2015 at 06:56

I have a problem like one of your members, I use MP45DT02 microphone on my STM324xG_EVAL board and record voice on uSD based on FATFS, ST code example for audio record/playback that is presented for discovery board was helpful and it works very well for audio frequencies more than 8 kHz in my STM324xG_EVAL board. But 8 kHz is a critical frequency for final audio output on STM324xG_EVAL board.

Is it possible to have 8 KHz for my final audio output? How?

Sincerely

[Tesla DeLorean]

Posted on July 13, 2015 at 17:02

If you're going to vaguely reference other posts, please just cite them or post directly against them.

[DEAD LINK /public/STe2ecommunities/mcu/Lists/STM32Discovery/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/STM32Discovery/STM324xG_EVAL%20microphone%20%28MP45DT02%29%20problem&FolderCTID=0x01200200770978C69A1141439FE559EB459D75800084C20D8867EAD444A5987D47BE638E0F&TopicsView=https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Discovery/AllItems.aspx&currentviews=13]https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Discovery/Flat.aspx?RootFolder=%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fSTM32Discovery%2fSTM324xG_EVAL%20microphone%20%28MP45DT02%29%20problem&FolderCTID=0x01200200770978C69A1141439FE559EB459D75800084C20D8867EAD444A5987D47BE638E0F&TopicsView=https%3A%2F%2Fmy.st.com%2Fpublic%2FSTe2ecommunities%2Fmcu%2FLists%2FSTM32Discovery%2FAllItems.aspx¤tviews=13

Not really an area of interest to me, but I'd suggest you carefully review the part documentation to understand how it works, what settings and clocks it expects. Then you might have to experiment with those settings, and those of the STM32, to get what you want.