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BOOST-LP5569EVM: MSP432 LaunchPad

Zeming Kong
Expert 3515 points
Part Number: BOOST-LP5569EVM
Other Parts Discussed in Thread: MSP-EXP432E401Y, LP5569

Hi team,

My customer is evaluating this device, and EVM needs MSP-EXP432P401R Launchpad, but it is not available now, can we use MSP-EXP432E401Y instead?

Best,
Zeming

  • 0
    TI__Expert 6440 points

    Hi Zeming,

    Sorry for that, but MSP-EXP432E401Y is not useful to drive the EVM.

    Considering this situation, I can give them a brief guidance to light up EVM.

    LP5569 is not a complex device, so it only needs a few I2C command to use.

    Please let me know if the guidance is acceptable for customer.

    Thanks!

    Ives 

  • +1 in reply to Ives Li
    TI__Expert 6440 points

    Hi Zeming,

    If they can use their own MCU to control it, please try the following register configuration: 

        Reg [0x00] = 0x40 // CONFIG

        Reg [0x22] = 0xAF // LED0 Current Default @ 17.5mA

        Reg [0x2F] = 0x59 // Internal 32kHz enabled

        Reg [0x33] = 0x02 // Headroom Default @ 250mV

        Reg [0x3C] = 0x80

        Reg [0x3D] = 0x02

        Reg [0x80] = 0x04 // PWM CONFIG

        Reg [0x16] = 0xFF // LED0 100% duty cycle

    Thanks!