TLV320AIC3111EVM-K: Digital input on EVM

Souvik Saha

We are using a digital microphone which gives PDM output connected to the the DIN pin, and setting the GPIO1 pin as ADC_CLOCK. We are facing difficulty in playing the audio on speaker or headphone, If any sample or demo code can be provided, it will be very helpful.

over 4 years ago

0 Steve-Wilson over 4 years ago

TI__Mastermind 30030 points

Hello Souvik,

Can you be more specific? You would like to play the PDM microphone on the speaker? or do you want to play digital audio from a DSP?

best regards,

-Steve Wilson

0 Souvik Saha over 4 years ago in reply to Steve-Wilson

Intellectual 625 points

We would like to process the PDM input on the DSP and then play it back on the headphone and speaker. I hope that clarified my doubt.

0 Steve-Wilson over 4 years ago in reply to Souvik Saha

TI__Mastermind 30030 points

Souvik,

yes, this is possible, The PDM input would be the only thing that could be played on the hp and speaker as the DIN pin needs to be used for the DMIC.

do you have a process flow file you are using in Purepath Studio? can you share this process flow?

best regards,

-STeve Wilson

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TLV320AIC3111EVM-K: Digital input on EVM