How can I use I2S1 (l4t-r32.5)


I have a custom board and I have to use the I2S1 (Pins: 211, 199, 197, 193).

Can I get help testing I2S interface?

Thanks in advance

Have a check this doc.

I have to use I2S1 interface, not the I2S4, therefore I do not need to use 40p Expansion header…
Can I know well?

I tried this:
amixer -c tegrasndt210ref cset name=“I2S1 Mux” ADMAIF1
speaker-test -D hw:tegrasndt210ref ,0 -c 2 -r 48000 -F S16_LE -t sine -f 500

but I cant measure any signals into the pins…

Did you use Nano or TX1?

I use Nano (p3448-0002)

Does nano devkit only have 40 pin header output? So you are using customized carrier board?

Definitely I use custom carrier board.

Have check this doc to configure the pinmux for it.