is2 mclk

lin_yabao2016
Posts: 3
Joined: Sun Nov 06, 2016 1:28 pm

is2 mclk

Postby lin_yabao2016 » Tue Jan 10, 2017 2:21 pm

I use "Espressif IoT Development Framework. Official development framework for ESP32", i2s bck and ws is ok,but
my adc need mclk,how can i open esp32 mclk? (stm32 cpu i2s include mclk, bck, ws ) thank you.

ESP_Sprite
Posts: 434
Joined: Thu Nov 26, 2015 4:08 am

Re: is2 mclk

Postby ESP_Sprite » Wed Jan 11, 2017 1:57 am

We do not have a separate mclk output from the i2S driver, sorry. If your I2S codec is happy with a non-synchronized mclk (which a fair few are, in my experience) you can generate this using e.g. the LED PWM module.

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