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bomho
bomho
Visitor II
August 21, 2018
Question

STUSB4500 I2C information

  • August 21, 2018
  • 2 replies
  • 713 views

I put in a support request august 13th regarding information about STUSB4500 i2c communication, but I have not heard anything, so trying here instead.

Our goal with this chip is to supply our system with a negotiated voltage and current from a universal usb c charger. But I need to know the addresses and value ranges for the relevant I2C registers to do this. When will this information be available ?

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    2 replies

    Gregory Go.
    Gregory Go.
    Senior III
    August 23, 2018

    Hi,

    I don't know exactly when the register map will be published.

    But the online support team should be able to help you for such request.

    A simpler alternative to program the STUSB4500 NVM memory is to use the STUSB4500 GUI with a STM32 Nucleo board.

    The Nucleo board is only $10. So it is a low cost I2C programming tool, and already ready to use.

    You just need to connect the I2C pins (SCL, SDA, GND) from the Nucleo board to the I2C pins of the board where is located STUSB4500 (as you can see on the picture below).

    Then you can use the GUI to configure the device depending on your application requirements.

    STSW-STUSB002 : Graphical User Interface for STUSB45

    https://www.st.com/content/st_com/en/products/embedded-software/evaluation-tool-software/stsw-stusb002.html

    0690X000006BvKaQAK.png

    0690X000006BvKfQAK.png

    Regards

    B
    Benoit FORET
    ST Employee
    October 10, 2018

    Hello,

    a software library called STSW-STUSB003 is now distributed. You can access from STUSB4500 product page on st.com or by clicking on the bellow link. It contains STUSB4500 hardware abstraction layers, drivers, Code example, demo as well as the detailed register map.

    https://www.st.com/content/st_com/en/products/embedded-software/evaluation-tool-software/stsw-stusb003.html

    Rgds

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