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TAS5782M: EQ parameter adjustment vs register

Ivan Ng
Prodigy 10 points
Part Number: TAS5782M


Tool/software:

Dear Sir/Madam: Is there a specific register for adjusting the gain of a EQ node? In the PPC tool, when I tried adjusting the gain of an EQ node, it seems the output C file will change a large part of the code instead of only one register adjustment. What I would like to achieve is to adjust the gain of an EQ node by updating one or several registers. Is it doable? If not, is there an equation for calculation? If not, say if I have to change the EQ gain of 7 fixed frequencies, each gain level from -12dB to 6dB in 1step scale, then I'll have 7 x 19 steps of gain. If I have to update a piece of code for gain change at 2kb per each setting, then it will consume me 7 x 19 x 2kb = 266kb of code for all these combinations. Is there a better/easier way to adjust gain of a fixed EQ node without the need to update large piece of code settings? Thanks for any help in advance.

  • 0
    TI__Genius 10305 points

    Expect a response in 24hrs. 

    Regards.

  • 0 in reply to Ore Ogundana
    TI__Genius 10305 points

    Hey Ivan, 

    On the i2c log window, once in record mode, it records the register bit changes made when the GUI is used. Try noting the lines of code that change when a gain configuration in the GUI is made. That register would be the register that controls the gain setting. The other registers that get dumped and don't change can be left as is. 

    Below are images of the i2c log window in record mode. The gain setting was changed to different values to identify which registers control EQ gain. Here, registers x1C and x58 are the leading registers that control EQ gain. The EQ feature in the device is dynamic so a number of registers control this gain feature and not just one.

    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 

    first gain setting

    second gain setting: 

    Regards,

    Ore.