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two UCD9081 on a single board

Srivatsa Raghunath
Prodigy 180 points
Other Parts Discussed in Thread: UCD9081

Hi,

We're using two UCD9081 devices on a single power management board for sequencing and monitoring different supplies. Let us know how to program both these devices using a single communication. Our GUI is able to talk to only one of these devices at a time. If both are connected, the communication fails

Thanks and regards,

Srivatsa

  • 0
    TI__Guru 64480 points

    Would you explain your setup in more detail?  I can make some assumptions about it, but would rather understand it fully.  Both from a hardware implementation perspective and your use of the GUI.

    From what I recall, the GUI only has the capability of configuring parameters for 1 UCD9081 at a time.  But you should be able to switch between which device you talk to based on the unique I2C device address.  I assume the two UCD9081s have a unique I2C device address setup via resistor strap options.