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TAS3251EVM: Programming the presets with config file on the TAS3251EVM

Prodigy 180 points

Replies: 4

Views: 169

Part Number: TAS3251EVM

Hello,

We bought 4 of the TAS3251EVM modules to evaluate these chips for use in our active speakers. Our plan is to setup a pair of 3 way active speakers using 1 module in BTL for the mids/tweeters, and 1 in PBTL mode for the woofer per speaker. For the woofer amps in PBTL mode, I will slave them to the mid/tweeter amps via I2S. I also bought a PCM4222EVM ADC board to add analog inputs. Since this board has dual SPDIF outputs, our plan is to use 1 SPDIF out for the right speaker, and 1 for the left. 
So far 1 thing I've noticed is the custom config settings all get wiped out as soon as you power down the boards. The boards have 3 presets to choose from, but I don't have any clue how to store configurations into the ROM of the MPS430, so my saved configurations don't need to be loaded from the PPC software to each module every time we power the units down. 
What we would like to do is set this system up so all we will need to do is power up all the boards, and our configurations will automatically load at power up.  We plan on putting these all in a case, and would like the custom configuration to all automatically load on all 4 boards when I power up. No other configuration required. Simple setup, hit the power button on the front of the case, and start playing music via the analog inputs of the PCM4222EVM.
What would it take for us to set this system up this way?
  • Davis,

    As you said, put them in one box is a good idea. Then what you need to do is:
    1. Buy a MSP430 EVM. All launch board has IIC interface, so you can choose anyone.
    2. Connect all the board IIC in the same bus.
    3. Use MSP430 IIC library and write each register of DAC and TAS board.
    4. You should write the code into MSP430 flash. After that, it will automatically run the code when power up.

    That’s done. For the step 3 and 4, you can go to MSP430 forum to ask details.


    Dylan
  • In reply to Dylan Yao:

    Thanks Dylan. So they can be programmed to fully boot and run my customized process flow just by applying power? I won't need to run through the sequence of pressing the program select, un-muting, and input select?
  • In reply to Mike Davis15:

    Yes, it can be programmed to fully boot, just like a product in the market.
  • In reply to Dylan Yao:

    Ok great thank you!

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