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Stm32CubeIde Not Configuring PDM Interface Properly ~ Nucleo-H755ZI-Q

CFran.1
Associate II

0693W000008yurrQAA.pngSo the above pic shows SAI_1 configured correctly with 3 Microphone Pairs, on the STM32CubeIde. The pins are appearing in the GPIO.

0693W000008yus1QAA.pngFor this one, I am trying to use 2 Microphone Pairs, but it won't let me change microphone pairs from 3 to 2. This is causing the GPIO to not turn green, they keep saying no mode.

I understand the SAI_1 & SAI_2 D2 pin are connected to the same pin, which means only 5 pairs of microphones can be used at a time with the two PDM interfaces.

My main question is, is this a glitch in the STM32CubeIde? I can easily change the automated code to suite my needs, I just want to make sure its not something else wrong. Thank you for reading this!

2 REPLIES 2

Hello @CFran.1​ ,

Could you please share your .ioc file to check from my side ?

It will help to investigate this issue further.

Thanks in advance,

Khouloud.

Of course, thank you!