Hello,
I want to post my clarifications here.
I stated that the I2S interface on GPIO18 - 21 did not work, but it worked when I tried interfacing a digital mic (INMP441 Omnidirectional Microphone Module) by including,and
as I mentioned about 'vclog' command,for a mysterious overlay file '/mfs/sd/overlays/max98090.dtbo' is actually what it displays when that overlay is not available in your /boot/overlays/ directory but is just included in /boot/config.txtif max98090.dtbo file is available in /boot/overlays/ then the above command shows, Hope it helps.
So, to interface the max98090 audio codec to RPi4, I have to write my own .dts file and compile it into a .dtbo file to include in /boot/overlays/.
I want to post my clarifications here.
I stated that the I2S interface on GPIO18 - 21 did not work, but it worked when I tried interfacing a digital mic (INMP441 Omnidirectional Microphone Module) by including,
Code:
dtparam=i2s=ondtoverlay=adau7002-simpleas I mentioned about 'vclog' command,
Code:
sudo vclog -mCode:
dtoverlay=max98090Code:
Loaded 'max98090.dtbo'So, to interface the max98090 audio codec to RPi4, I have to write my own .dts file and compile it into a .dtbo file to include in /boot/overlays/.
Statistics: Posted by electronics_enthu — Fri Nov 08, 2024 6:54 am