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UCD9248: Two ucd9248 controlls use the same PMBus, firmware combined in one tifsp file

Xiang Maverick
Intellectual 750 points
Part Number: UCD9248

My PCB contains 2 ucd9248 controlls use the same PMBus. I make one tifsp file that containing the firmaware for the 2 controllers. After downloading (by import system file) , I found one controller (ID 52)works correctly with all its 4 rails, the the other  (ID 53) shows under voltage fault on its first rail, and all of the rest rails does not works. Is it because I should not combine the 2 firmwares in one tifsp file? I can not tell the reason. Thank you for help. hardware and firmware.zip

  • 0
    TI__Mastermind 24075 points

    Hi Maverick, 

    Can you check if the second part (ID 53) is programmed by system file correctly?

    Can you also try programming part one by one by using .xml file?

    Thanks

    Qian

  • 0 in reply to Qian Chen
    Intellectual 750 points

    I plan to try make a new tifsp file containing only the firmware for the controller ID 53. I do not have much knowledge on xml file.

    Each time I import a tifsp file, the message shows I am not succeed for both controllers. But then I open fusion in online mode. I can verify the firmware is downloaded, otherwise the rail information shouldn’t be correct. I also verify one controller works correctly. The same thing also happens in my another PCB design where I use only one controller. Although the message shows tisfp file download error occur, actually firmware is downloaded and the controller works as expected.My fusion is updated at 2019. 12.

  • 0 in reply to Xiang Maverick
    TI__Mastermind 24075 points

    HI Maverick, 

    Under UCD9248 GUI->File->Save project as menu, you can save the configuration as .xml file. 

    Then import .xml file to a new part. 

    Not like system file (.tifsp), xml file can only save one part configuration. 

    Thanks

    Qian