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MCLK and I2S Slave ?
Posted: Wed May 31, 2017 6:19 am
by AlexAdvice
Does MCLK required if I use I2S Slave Mode?
Usually, LRCLK and BCLK is enough, but maybe with XMOS also MCLK need?
Re: MCLK and I2S Slave ?
Posted: Wed May 31, 2017 7:09 pm
by CousinItt
Hi,
no the I2S slave does not need a separate MCLK. See the information on creating an i2s_slave component in the I2S/TDM library document.
Re: MCLK and I2S Slave ?
Posted: Thu Jun 01, 2017 1:45 pm
by infiniteimprobability
CousinItt is right - it's all done from the BCLK. However you didn't say whether you are using USB audio I2S or lib_i2s. If using the former, MCLK is still needed for the feedback calculation to the host for the ISO endpoint in asynch mode as standard.
Re: MCLK and I2S Slave ?
Posted: Fri Jun 02, 2017 9:49 am
by AlexAdvice
Thank you, not it's clear.