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How to use 4 i2s peripherals on same clock?

Question asked by Van_Hamme.Erik on Mar 13, 2017
Latest reply on Mar 14, 2017 by waclawek.jan

Hello *,

 

I am trying to assess feasibility of using a STM32f411 in combination with 2 4 channel class D amplifier chips (FDA4100LV) to make a USB connected surround amplifier for my computer.

 

I have the skills to make the USB communication and DMA buffering work. What I am uncertain about is how to use 4 i2s peripherals in sync. Each i2s peripheral seems to be outputting its own clock when configured in master mode. Is it possible to have one peripheral output the clock + 2 channel data and the 3 other peripherals output only 2 channel data on the same clock as the first i2s?

 

I am sorry if this question was asked before. I am dealing with quite some time pressure here and I do not have the time to do my own proper research on this matter. If someone could point me in the right direction, it would help me a lot.

 

Thanks, Erik.

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