esp camera i2s max clock?

xenpac
Posts: 25
Joined: Sun Dec 08, 2019 1:20 am

esp camera i2s max clock?

Postby xenpac » Tue Mar 31, 2020 2:28 pm

Hello...
somewhere igrr mentioned that the max clock for the i2s module can be 20mhz.

I have a custom camera that has onboard 25mhz oscillator (so not xclocked by esp) and outputs a pixelrate of 25mhz.

I cant capture anything.

As to the i2s module, i understand that it is clocked by the pixelclock of the camera ? !

If 20mhz is max, i have to reduce the pixelclock.

maybe someone can confirm this upper limit of 20mhz.

ESP_Sprite
Posts: 9599
Joined: Thu Nov 26, 2015 4:08 am

Re: esp camera i2s max clock?

Postby ESP_Sprite » Tue Mar 31, 2020 6:56 pm

Yes, 20MHz is the max.

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