Parallel I2S: falling edge instead of rising edge clock?

michikite
Posts: 16
Joined: Thu Oct 22, 2020 1:35 am

Parallel I2S: falling edge instead of rising edge clock?

Postby michikite » Wed Apr 28, 2021 7:44 pm

Is there a way to tell the esp32 to sample data at the falling edge of the clock instead of the rising edge, when sampling parallel data through i2s camera mode?

Sprite
Espressif staff
Espressif staff
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Joined: Thu Nov 26, 2015 4:08 am

Re: Parallel I2S: falling edge instead of rising edge clock?

Postby Sprite » Thu Apr 29, 2021 12:56 am

You can simply use the GPIO matrix to invert the signal. Use esp_rom_gpio_connect_in_signal() and pass true as the last argument.

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