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Original question:

PCM5102A: What is the difference between PCM5102 and PCM5102A?

PCM5102A: How to drive PCM5102A

Gabriel Wang1
Genius 3825 points
Part Number: PCM5102A

PCM5102A does not have an official driver on the ARM platform of I. Mx series?

The driver of the PCM5102A mentioned "PCM5102A. C" is also mentioned in our previous letters. We analyzed that only that driver could not output audio.

The help we hope to get includes:

1. What is the configuration state of PCM5102A in hardware, such as FLT and FMT

2. Which pins of PCM5102A should be connected to I.MX8

3. How should the relevant pins be configured in the device tree, and how should the two nodes PCM5102A and Sound be configured.

  • 0
    TI__Guru 52663 points

    Hi Gabriel,

    We are not able to support the development of drivers.  This is a hardware controlled device, with a very limited number of supported configurations.  I recommend you confirm what the data format of the I2S output from the processor looks like.  That will determine what FMT should be set to (left-justified or standard I2S).  In addition, you need to confirm if the I2S frequencies are valid and supported by the device.  The FLT pin selects between two different digital filters in the device.  Connecting this pin to either high or low will still result in audio output if the I2S input is valid.

    Thanks,

    Paul