ESP8266 Community Forum

- Wed May 27, 2015 1:30 pm #18626

I2S has to implemented in software, there is no hardware support. I doubt it will keep up with 48 KHz/16 bits.

Moin,

I know next to nothing about i2s itself but from the esp8266 datasheet i got the impression than in and
out have dedicated pins and they say that "linked list dma" is supported.

What do you base your statement on?

Just being curious and trying to get to the root ...

Cal

Get your modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Wed May 27, 2015 2:35 pm #18642 The GPIO MUX table does actually lists I2S pins: wiki/doku.php?id=esp8266_gpio_pin_allocations
Other than that an a few comments in examples/IoT_Demo/driver/spi.c (from IoT SDK), there does not appear to be any documentation on I2S.
You might have better luck asking on the official espressif forum...

- Thu May 28, 2015 4:28 am #18712 My statement is from the i2c "support" which appears to be only on pin level (pins can be set to "open drain" mode, which is necessary for i2c operation). I guess this also counts for i2s.