IMX8MM: One SAI two i2S

denyslytvynov — Wed, 06 May 2020 11:13:48 GMT

Hello,

In the user manual under paragraph 13.9.1.2 there is a block diagram (Figure 13-104) which shows TX and RX signals which can be used for i2S. My question is:

I am trying to connect two devices - a Microphone and a Speaker. Both are using i2S for communication although one as a transmitter and another as a receiver. Microphone, MPN SPH0645LM4H-B, has WS, BCLK, DOUT and Speaker has a DAC - TAS2505 which is driven with i2S - WS, BLCK, DIN. Would it be possible to drive both if I connect them in the following manner:

Microphone:

WS - SAI2_RXFS
BCLK - SAI2_RXC
DOUT - SAI2_RXDO

Speaker:

WS - SAI2_TXFS
BCLK - SAI2_TXC
DIN - SAI2_TXD0

Kind Regards,
Den

Re: IMX8MM: One SAI two i2S

igorpadykov — Wed, 06 May 2020 23:19:20 GMT

Hi Den

>Would it be possible to drive both if I connect them in the following manner..

yes such connection is possible

Best regards
igor
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topic IMX8MM: One SAI two i2S in i.MX Processors

IMX8MM: One SAI two i2S

Re: IMX8MM: One SAI two i2S