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PMIC register offsets and OTP configurations

chandan kumar
Intellectual 440 points
Other Parts Discussed in Thread: TPS659037, AM5728

Hi,

I am using AM5728 processor and TPS659037 PMIC.

For USB detection i need to configure GPIO_1 pin as VBUSDET .By default this pin is set as GPIO_1.

To change the pin config as VBUSDET i need to change the value of PRIMARY_SECONDARY_PAD1 register(Address 1FAh) to 08h.

The command which i used for writing  to this register is 

i2cset -y 1 0x58 0xFA 0x08

Please confirm me the slave address ,register address and the value written are correct for that particular register.

And also please let me know that is it possible to change the value of that register in OTP so that by default GPIO_1 pin is configured as VBUSDET even after the hardware reset

Thanks,

chandan

  • 0
    TI__Genius 16410 points
    Hello Chandan,

    You have the right I2C address, register address, and data.

    Regarding the OTP change, it can be done but requires a business review in order for us to support. Please talk to your local TI sales or applications support, and they can discuss with our business team.

    Regards,
    Karl