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MMWCAS-RF-EVM: I2C for PMIC control

KenF
Expert 6760 points
Part Number: MMWCAS-RF-EVM
Other Parts Discussed in Thread: MMWCAS-DSP-EVM, , AWR2243

Hello Experts,

My customer is using MMWCAS-RF-EVM and MMWCAS-DSP-EVM. I2C looks used for PMIC control. Is this mandatory? Can it be omitted?

Also, we would like to know what it is used for during boot sequence.

Best regards,

Ken

  • 0
    TI__Guru*** 138339 points

    Hi,

    The hardware team will review your request and will get back to you tomorrow.

    thank you

    Cesar

  • 0 in reply to Cesar
    TI__Expert 6760 points

    Hi,

    Could you give us your comments?

    Regards,

    Ken

  • 0
    TI__Guru 68160 points

    Hello,

    Could you provide more info on this i2c control? Are you using mmWave Studio with this cascade board? Please pin point the usage of I2C in this flow.

    Thank you.

    Jitendra

  • 0 in reply to Jitendra Gupta
    TI__Expert 6760 points

    Hello Jitendra,

    Yes, they are using mmWave Studio with the cascade board.

    The background of this question is:

    They want to use their own HW and MCU in the future. They would like to know I2C control is mandatory for their future board.

    Best regards,

    Ken

  • 0 in reply to KenF
    TI__Guru 68160 points

    AWR2243 can not control PMIC over I2C, whereas Host processor can do this control over I2C.

    Now in the cascade RF board, I2C +PMIC control is provided over FTDI chip so mmWave Studio can do that control.

    In the end product of Cascade, FTDI chip should not be there as All the control of AWR2243 and PMIC is controlled by the Host Processor.

    Basically I2C control of PMIC is required to change any setting of PMIC or to configured it for some functionalities.

    In the end product PMIC can not pre-configured with required setting (via OTP) so this I2C connection is not required.

    .

    Regards,

    Jitendra