IMX8MM mini - i2s digital mic

dudisasson — Thu, 30 Apr 2020 09:18:37 GMT

Hi,

I`m designing a base card for the imx8mm mini and i want to connect a digital mic using i2s.

this is how i plan to connect it:

is it ok? what do i need to add in the device tree in order for it to work?

Thanks,

Dudi.

Re: IMX8MM mini - i2s digital mic

gusarambula — Thu, 30 Apr 2020 21:35:22 GMT

Hello Dudi,

The i.MX Pins Tool may help to setup the muxing options for your pins, and it allows to generate code for the Device Tree. You may download it from the link below:

https://www.nxp.com/design/designs/pins-tool-for-i.mx-application-processors:PINS-TOOL-IMX

More specifically speaking of setting up the device tree for I2S, the following threads may be able to help:

https://community.nxp.com/thread/475184

I2S microphone (SPH0645LM4H) Driver Implementation with i.mx6ul

I hope this helps!

Regards.

topic Re: IMX8MM mini - i2s digital mic in i.MX Processors

IMX8MM mini - i2s digital mic

Re: IMX8MM mini - i2s digital mic