SAI1_MCLK can't output

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SAI1_MCLK can't output

602 Views
kenmeng
Contributor II

HI

Why the SAI1_MCLK Can't output to the Pin.

PinMux: CSI_DATA01,  Mode(ALT6), PAD_CTL (Pull up with 47kohm, SPEED_3_max_200MHz, Fast_Slew_rate)

The other signal of the SAI (include BCLK、FS、DAIN) are all output correctly.

BestRegards!

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3 Replies

433 Views
art
NXP Employee
NXP Employee

SAIx_MCLK is not an output. This is just the optional external master clock input for the SAI module to derive all other clocks (bit clock, frame sync clock) from it. So, nothing should be output on this line.


Have a great day,
Artur

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433 Views
kenmeng
Contributor II

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Hi Artur,

     This from imx6ul TRM,please check it!

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433 Views
chris_c
Contributor II

Can someone confirm if SAI1_MCLK is an output?  I'm facing the same issue.

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