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Visitor II
April 23, 2020
Question

What causes SRC to send Hard Reset during charging?

  • April 23, 2020
  • 2 replies
  • 1082 views

I am working on a SNK device. Power negotiation goes well, an explicit contract is reached. Charging starts. Sometime into charging, SNK gets a Hard Reset. What could cause a SRC to send a HARD RESET during charging?

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    2 replies

    ST Employee
    April 23, 2020

    Dear @CZubi.1​ ,

    Could you please provide a .cpd trace from your issue? Further information available in the following link: https://wiki.st.com/stm32mcu/wiki/USB_Power_Delivery_overview#Specific_tools.

    Regards,

    Yohan,

    CZubi.1Author
    Visitor II
    April 23, 2020

    Hi Yohan,

    Here's the log,

    Thanks

    ST Employee
    April 23, 2020

    I have a look at the log... Could you please indicate your HW Setup? STM32 + TCPC component? which is your ST MCU?

    CZubi.1Author
    Visitor II
    April 23, 2020

    Hi Yohann,

    MCU is STM32F030CC + PTN5110 TCPC