SC600T : Digital Microphone bring up on MI2S_2 Interface

IoT Modules Smart Module
1

Hello Team,

We have connected one Digital Microphone with SC600T Board on mi2s_2 interface , below is the pin description for the same.
Digital Microphone SC600T
WS FP_SPI_CS/MI2S_2_WS ( GPIO 136)
SD FP_SPI_MOSI/MI2S_2_D0 ( GPIO 137 )
SCK FP_SPI_CLK/MI2S_2_SCK ( GPIO 135)
L/R GND
GND GND
We have provided 1.8 volt Supply to digital microphone externally.

Can you please provide the software changes that we have to make in AOSP to bring up this microphone?

software changes like
device tree Modification
platform/machine/codec driver modification if any
What Mixer and Routing changes are required
How to capture the Sound using tinyalsa user space utility

Please let us know if you have any questions.

2

Hi Customer:
We can discuss this issue in our technical support group with Teksun. Please provide us with your skype account, thank you.

3

Hello robertlong,

Thank you for the quick response.

yes i have raised the query in our "quectel tekusn india group

Thanks and regards

Punit Chotaliya

4

Ok，Abby will contact you and follow up on this issue，thanks.