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S/PDIF data to MP Pins

SigmaDSP & SigmaStudio JMF Feb 17, 2012 00:00 1 replies Original on forum ↗
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JMF Question
Feb 17, 2012 00:00

Hello everyone,

I want test the output data from the S/PDIf receiver to the multipurpose pins and it does not work (EVAL-ADAU144x with ADAU1442)

I have actived the register 0x241 as indicated on the datasheet ADAU1442, no signal on the MP pins, just the pins go to gnd, when I active Group1 or Group2 in SigmaStudio V3.5.

thank you for the help

JMF

Audio Signal Processors

adau1442

SigmaDSP Audio Processors

evaluationboard

ADIApproved Reply
Feb 24, 2012 00:00

Hi JMF,

I just tested this and I have no problems.

First, activate I2S, Group 1, and Group 2.

Then set the auxiliary outputs to "Always On."

Now check the MP pin assignments in the datasheet and probe those pins:

I checked MP9 and MP11, and found the data and LRCLK signals, respectively.

If you don't see that, click the Read All Registers from DSP button.

Then check the S/PDIF input lock bit.

If you don't see a successful lock, maybe the input S/PDIF signal has a problem.

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