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RTOS/LAUNCHXL-CC1352R1: Use I2S PDM mic on CC1352R lp

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Part Number:LAUNCHXL-CC1352R1

Tool/software: TI-RTOS

Hi,

I have bought an external PDM mic and I connect that with the CC1352R lp through pin headers, I want to know that have you changed anything regarding to I2S in CC1352 compared to CC1350?

I used CC13x2 SDK and ported the PDMStream sample project to a CC1352 project, made necessary modifications to CC1352 device files(mainly defined which pins to be used as I2S interface), it seems that the i2S successfully opened, but I couldn't get the PDM data reading done(program couldn't go to callback). I also changed heapsize to 4096 to make sure there's enough room for PCM data.

Plz advise me thank you in advance.  


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