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Original question:

UCD90160: Updating Device with new config file

UCD90160: remote field upgrade

Ben Kuo
Expert 7570 points
Part Number: UCD90160

Dear team,

Customer use UCD90160 and have some questions about remote field upgrade here.

Could you share your comments with us?

1. Can we use JTAG for remote field upgrade?

2. Can we use I2C for remote field upgrade?

3. Did we need power on and then power on(power on/off cycle) once code be upgraded.

4. How long is upgrade time cost?

Regards,

Ben

  • 0
    TI__Guru 66240 points

    Hello 

    There are two ways to update the configuration.

    1. update the flash directly without changing the operation memory. The new settings will not take effect until a reset or power cycle.

    2. modify the operation memory directly. The new settings are effect immediately. The system is not under controlled state since the memory is modified on the fly. Normally, this approach is not recommended unless customers only want to changes some minor things: such as thresholds.

    Please see my answers below.

    1. No.

    2. yes. I2C is the right interface to do remote field updates.

    3. See above comments.

    4. to write the flash again, it will take couple seconds since you need consider all the i2c communication time. writing one word need 2 PMBus commands, there are total 2K bytes(512word). to write.

    Regards

    Yihe