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TAS5766M set on slave mode question

Hugo Wang
Expert 1525 points
Other Parts Discussed in Thread: TAS5766M, PCM1862, TAS5766MDCAEVM, TAS5766MRMTEVM

Hi Sir

I want to setting slave mode on TAS5766M. I know don't need to modify 0x09 register.

Do we need to modify other registers on slave mode？

Thanks for your support.

  • 0
    TI__Expert 5000 points
    Hi, Hugo
    Default setting is I2S slave mode without any register modification. What is your concern?
  • 0 in reply to Peter Cao
    Intellectual 310 points

    Our original design is Si4731 (as I2S Slave) and TAS5766M (as I2S Master).

    It can work. According to some reasons, the design is changed to

    PCM1862 (as I2S Master) and TAS5766M (as I2S Slave).

    Somebody gave me the following patch setting:

    w 98 00 01
w 98 03 04

w 98 00 00
w 98 0D 10
w 98 25 08
w 98 08 10

    Q1) What's the feature of Page 01, Register 03 ? 
    I caN NOT find anything in TAS5766M data sheet.

    Q2) w 98 09 00 is necessary. Right ?

  • 0 in reply to JeffreyChang168
    TI__Expert 5000 points

    Hi, Jeffery

          Yes,"w 98 09 00" is necessary.

          I suggest you use PPC3's End System Integration/Dump Current State into a header File to generate the .h file or .cfg file.  Because there are many registers in TAS5766,  PPC3 will help to generate the correct configuration file.

      

  • 0 in reply to Peter Cao
    Intellectual 310 points
    Hi Peter,
    Thanks for your support.
    Q1) What's the feature of Page 01, Register 03 ?
    I caN NOT find anything in TAS5766M data sheet.
    Q2) May I use PPC3 to fine tune PCM1862 ? I can NOT find any PCM1862 apps .
    Q3) How to connect PCM1862 and TAS5766M EVM boards ?
    Q4) TAS5766M used I2C Burst Mode approach. May PCM1862 use the same one ?
  • 0 in reply to JeffreyChang168
    TI__Expert 5000 points
    Hi, Jeffery
    1) With PPC3 GUI, no need to know the content of Page01, Register03, you can get the all the registers value which you need from PPC3 GUI.
    2) You can download PCM186X EVM Users Guide and TAS5766MDCAEVM User's Guide and figure out the connect method, but I think it is not very easy to connect them. ^_^, but you can have a try, maybe need many fly wires.
    3)Yes, PCM1862 also support I2C Burst mode.
    4) How to get TAS5766's app in PPC3? Maybe you can use the same method to find PCM186X's app.
  • 0 in reply to Peter Cao
    Intellectual 310 points
    Hi Peter,
    2) You can download PCM186X EVM Users Guide and TAS5766MDCAEVM User's Guide and figure out the connect method, but I think it is not very easy to connect them. ^_^, but you can have a try, maybe need many fly wires.
    JC> We used I2C (48kHz 24-bit) format. It stands for 3.072MHz at BCK signal wire between PCM1862 and TAS5766MRMTEVM boards.
    4) In a couple of days ago, I got the TAS5766M app in PPC3. I need PCM1862 app now.